ICD-10-CM Tabular Index · Chapter 19 · FY 2026 T24

Burn and corrosion of lower limb, except ankle and foot (T24) ICD-10-CM

The T24 code range covers burn and corrosion of lower limb, except ankle and foot with 529 ICD-10-CM diagnosis codes. 360 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.

✓ Built from the official CMS FY 2026 datasetEffective Oct 1, 2025 – Sep 30, 2026
529
Diagnosis Codes
360
Billable Codes
T24
Code Range
T20–T25
Parent Section

Type 2 Excludes

A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.

7th Character Note

Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.

7th Character

Indicates that a seventh character is to be assigned to codes in a subcategory.

ICD-10-CM

Codes in the T24 Range 529 codes · 360 billable

529 of 529 shown
  • T24 Burn and corrosion of lower limb, except ankle and footNon-billable
  • T24.0 Burn of unspecified degree of lower limb, except ankle and footNon-billable
  • T24.00 Burn of unspecified degree of unspecified site of lower limb, except ankle and footNon-billable
  • T24.001 Burn of unspecified degree of unspecified site of right lower limb, except ankle and footNon-billable
  • T24.001A Burn of unspecified degree of unspecified site of right lower limb, except ankle and foot, initial encounter
  • T24.001D Burn of unspecified degree of unspecified site of right lower limb, except ankle and foot, subsequent encounter
  • T24.001S Burn of unspecified degree of unspecified site of right lower limb, except ankle and foot, sequela
  • T24.002 Burn of unspecified degree of unspecified site of left lower limb, except ankle and footNon-billable
  • T24.002A Burn of unspecified degree of unspecified site of left lower limb, except ankle and foot, initial encounter
  • T24.002D Burn of unspecified degree of unspecified site of left lower limb, except ankle and foot, subsequent encounter
  • T24.002S Burn of unspecified degree of unspecified site of left lower limb, except ankle and foot, sequela
  • T24.009 Burn of unspecified degree of unspecified site of unspecified lower limb, except ankle and footNon-billable
  • T24.009A Burn of unspecified degree of unspecified site of unspecified lower limb, except ankle and foot, initial encounter
  • T24.009D Burn of unspecified degree of unspecified site of unspecified lower limb, except ankle and foot, subsequent encounter
  • T24.009S Burn of unspecified degree of unspecified site of unspecified lower limb, except ankle and foot, sequela
  • T24.01 Burn of unspecified degree of thighNon-billable
  • T24.011 Burn of unspecified degree of right thighNon-billable
  • T24.011A Burn of unspecified degree of right thigh, initial encounter
  • T24.011D Burn of unspecified degree of right thigh, subsequent encounter
  • T24.011S Burn of unspecified degree of right thigh, sequela
  • T24.012 Burn of unspecified degree of left thighNon-billable
  • T24.012A Burn of unspecified degree of left thigh, initial encounter
  • T24.012D Burn of unspecified degree of left thigh, subsequent encounter
  • T24.012S Burn of unspecified degree of left thigh, sequela
  • T24.019 Burn of unspecified degree of unspecified thighNon-billable
  • T24.019A Burn of unspecified degree of unspecified thigh, initial encounter
  • T24.019D Burn of unspecified degree of unspecified thigh, subsequent encounter
  • T24.019S Burn of unspecified degree of unspecified thigh, sequela
  • T24.02 Burn of unspecified degree of kneeNon-billable
  • T24.021 Burn of unspecified degree of right kneeNon-billable
  • T24.021A Burn of unspecified degree of right knee, initial encounter
  • T24.021D Burn of unspecified degree of right knee, subsequent encounter
  • T24.021S Burn of unspecified degree of right knee, sequela
  • T24.022 Burn of unspecified degree of left kneeNon-billable
  • T24.022A Burn of unspecified degree of left knee, initial encounter
  • T24.022D Burn of unspecified degree of left knee, subsequent encounter
  • T24.022S Burn of unspecified degree of left knee, sequela
  • T24.029 Burn of unspecified degree of unspecified kneeNon-billable
  • T24.029A Burn of unspecified degree of unspecified knee, initial encounter
  • T24.029D Burn of unspecified degree of unspecified knee, subsequent encounter
  • T24.029S Burn of unspecified degree of unspecified knee, sequela
  • T24.03 Burn of unspecified degree of lower legNon-billable
  • T24.031 Burn of unspecified degree of right lower legNon-billable
  • T24.031A Burn of unspecified degree of right lower leg, initial encounter
  • T24.031D Burn of unspecified degree of right lower leg, subsequent encounter
  • T24.031S Burn of unspecified degree of right lower leg, sequela
  • T24.032 Burn of unspecified degree of left lower legNon-billable
  • T24.032A Burn of unspecified degree of left lower leg, initial encounter
  • T24.032D Burn of unspecified degree of left lower leg, subsequent encounter
  • T24.032S Burn of unspecified degree of left lower leg, sequela
  • T24.039 Burn of unspecified degree of unspecified lower legNon-billable
  • T24.039A Burn of unspecified degree of unspecified lower leg, initial encounter
  • T24.039D Burn of unspecified degree of unspecified lower leg, subsequent encounter
  • T24.039S Burn of unspecified degree of unspecified lower leg, sequela
  • T24.09 Burn of unspecified degree of multiple sites of lower limb, except ankle and footNon-billable
  • T24.091 Burn of unspecified degree of multiple sites of right lower limb, except ankle and footNon-billable
  • T24.091A Burn of unspecified degree of multiple sites of right lower limb, except ankle and foot, initial encounter
  • T24.091D Burn of unspecified degree of multiple sites of right lower limb, except ankle and foot, subsequent encounter
  • T24.091S Burn of unspecified degree of multiple sites of right lower limb, except ankle and foot, sequela
  • T24.092 Burn of unspecified degree of multiple sites of left lower limb, except ankle and footNon-billable
  • T24.092A Burn of unspecified degree of multiple sites of left lower limb, except ankle and foot, initial encounter
  • T24.092D Burn of unspecified degree of multiple sites of left lower limb, except ankle and foot, subsequent encounter
  • T24.092S Burn of unspecified degree of multiple sites of left lower limb, except ankle and foot, sequela
  • T24.099 Burn of unspecified degree of multiple sites of unspecified lower limb, except ankle and footNon-billable
  • T24.099A Burn of unspecified degree of multiple sites of unspecified lower limb, except ankle and foot, initial encounter
  • T24.099D Burn of unspecified degree of multiple sites of unspecified lower limb, except ankle and foot, subsequent encounter
  • T24.099S Burn of unspecified degree of multiple sites of unspecified lower limb, except ankle and foot, sequela
  • T24.1 Burn of first degree of lower limb, except ankle and footNon-billable
  • T24.10 Burn of first degree of unspecified site of lower limb, except ankle and footNon-billable
  • T24.101 Burn of first degree of unspecified site of right lower limb, except ankle and footNon-billable
  • T24.101A Burn of first degree of unspecified site of right lower limb, except ankle and foot, initial encounter
  • T24.101D Burn of first degree of unspecified site of right lower limb, except ankle and foot, subsequent encounter
  • T24.101S Burn of first degree of unspecified site of right lower limb, except ankle and foot, sequela
  • T24.102 Burn of first degree of unspecified site of left lower limb, except ankle and footNon-billable
  • T24.102A Burn of first degree of unspecified site of left lower limb, except ankle and foot, initial encounter
  • T24.102D Burn of first degree of unspecified site of left lower limb, except ankle and foot, subsequent encounter
  • T24.102S Burn of first degree of unspecified site of left lower limb, except ankle and foot, sequela
  • T24.109 Burn of first degree of unspecified site of unspecified lower limb, except ankle and footNon-billable
  • T24.109A Burn of first degree of unspecified site of unspecified lower limb, except ankle and foot, initial encounter
  • T24.109D Burn of first degree of unspecified site of unspecified lower limb, except ankle and foot, subsequent encounter
  • T24.109S Burn of first degree of unspecified site of unspecified lower limb, except ankle and foot, sequela
  • T24.11 Burn of first degree of thighNon-billable
  • T24.111 Burn of first degree of right thighNon-billable
  • T24.111A Burn of first degree of right thigh, initial encounter
  • T24.111D Burn of first degree of right thigh, subsequent encounter
  • T24.111S Burn of first degree of right thigh, sequela
  • T24.112 Burn of first degree of left thighNon-billable
  • T24.112A Burn of first degree of left thigh, initial encounter
  • T24.112D Burn of first degree of left thigh, subsequent encounter
  • T24.112S Burn of first degree of left thigh, sequela
  • T24.119 Burn of first degree of unspecified thighNon-billable
  • T24.119A Burn of first degree of unspecified thigh, initial encounter
  • T24.119D Burn of first degree of unspecified thigh, subsequent encounter
  • T24.119S Burn of first degree of unspecified thigh, sequela
  • T24.12 Burn of first degree of kneeNon-billable
  • T24.121 Burn of first degree of right kneeNon-billable
  • T24.121A Burn of first degree of right knee, initial encounter
  • T24.121D Burn of first degree of right knee, subsequent encounter
  • T24.121S Burn of first degree of right knee, sequela
  • T24.122 Burn of first degree of left kneeNon-billable
  • T24.122A Burn of first degree of left knee, initial encounter
  • T24.122D Burn of first degree of left knee, subsequent encounter
  • T24.122S Burn of first degree of left knee, sequela
  • T24.129 Burn of first degree of unspecified kneeNon-billable
  • T24.129A Burn of first degree of unspecified knee, initial encounter
  • T24.129D Burn of first degree of unspecified knee, subsequent encounter
  • T24.129S Burn of first degree of unspecified knee, sequela
  • T24.13 Burn of first degree of lower legNon-billable
  • T24.131 Burn of first degree of right lower legNon-billable
  • T24.131A Burn of first degree of right lower leg, initial encounter
  • T24.131D Burn of first degree of right lower leg, subsequent encounter
  • T24.131S Burn of first degree of right lower leg, sequela
  • T24.132 Burn of first degree of left lower legNon-billable
  • T24.132A Burn of first degree of left lower leg, initial encounter
  • T24.132D Burn of first degree of left lower leg, subsequent encounter
  • T24.132S Burn of first degree of left lower leg, sequela
  • T24.139 Burn of first degree of unspecified lower legNon-billable
  • T24.139A Burn of first degree of unspecified lower leg, initial encounter
  • T24.139D Burn of first degree of unspecified lower leg, subsequent encounter
  • T24.139S Burn of first degree of unspecified lower leg, sequela
  • T24.19 Burn of first degree of multiple sites of lower limb, except ankle and footNon-billable
  • T24.191 Burn of first degree of multiple sites of right lower limb, except ankle and footNon-billable
  • T24.191A Burn of first degree of multiple sites of right lower limb, except ankle and foot, initial encounter
  • T24.191D Burn of first degree of multiple sites of right lower limb, except ankle and foot, subsequent encounter
  • T24.191S Burn of first degree of multiple sites of right lower limb, except ankle and foot, sequela
  • T24.192 Burn of first degree of multiple sites of left lower limb, except ankle and footNon-billable
  • T24.192A Burn of first degree of multiple sites of left lower limb, except ankle and foot, initial encounter
  • T24.192D Burn of first degree of multiple sites of left lower limb, except ankle and foot, subsequent encounter
  • T24.192S Burn of first degree of multiple sites of left lower limb, except ankle and foot, sequela
  • T24.199 Burn of first degree of multiple sites of unspecified lower limb, except ankle and footNon-billable
  • T24.199A Burn of first degree of multiple sites of unspecified lower limb, except ankle and foot, initial encounter
  • T24.199D Burn of first degree of multiple sites of unspecified lower limb, except ankle and foot, subsequent encounter
  • T24.199S Burn of first degree of multiple sites of unspecified lower limb, except ankle and foot, sequela
  • T24.2 Burn of second degree of lower limb, except ankle and footNon-billable
  • T24.20 Burn of second degree of unspecified site of lower limb, except ankle and footNon-billable
  • T24.201 Burn of second degree of unspecified site of right lower limb, except ankle and footNon-billable
  • T24.201A Burn of second degree of unspecified site of right lower limb, except ankle and foot, initial encounter
  • T24.201D Burn of second degree of unspecified site of right lower limb, except ankle and foot, subsequent encounter
  • T24.201S Burn of second degree of unspecified site of right lower limb, except ankle and foot, sequela
  • T24.202 Burn of second degree of unspecified site of left lower limb, except ankle and footNon-billable
  • T24.202A Burn of second degree of unspecified site of left lower limb, except ankle and foot, initial encounter
  • T24.202D Burn of second degree of unspecified site of left lower limb, except ankle and foot, subsequent encounter
  • T24.202S Burn of second degree of unspecified site of left lower limb, except ankle and foot, sequela
  • T24.209 Burn of second degree of unspecified site of unspecified lower limb, except ankle and footNon-billable
  • T24.209A Burn of second degree of unspecified site of unspecified lower limb, except ankle and foot, initial encounter
  • T24.209D Burn of second degree of unspecified site of unspecified lower limb, except ankle and foot, subsequent encounter
  • T24.209S Burn of second degree of unspecified site of unspecified lower limb, except ankle and foot, sequela
  • T24.21 Burn of second degree of thighNon-billable
  • T24.211 Burn of second degree of right thighNon-billable
  • T24.211A Burn of second degree of right thigh, initial encounter
  • T24.211D Burn of second degree of right thigh, subsequent encounter
  • T24.211S Burn of second degree of right thigh, sequela
  • T24.212 Burn of second degree of left thighNon-billable
  • T24.212A Burn of second degree of left thigh, initial encounter
  • T24.212D Burn of second degree of left thigh, subsequent encounter
  • T24.212S Burn of second degree of left thigh, sequela
  • T24.219 Burn of second degree of unspecified thighNon-billable
  • T24.219A Burn of second degree of unspecified thigh, initial encounter
  • T24.219D Burn of second degree of unspecified thigh, subsequent encounter
  • T24.219S Burn of second degree of unspecified thigh, sequela
  • T24.22 Burn of second degree of kneeNon-billable
  • T24.221 Burn of second degree of right kneeNon-billable
  • T24.221A Burn of second degree of right knee, initial encounter
  • T24.221D Burn of second degree of right knee, subsequent encounter
  • T24.221S Burn of second degree of right knee, sequela
  • T24.222 Burn of second degree of left kneeNon-billable
  • T24.222A Burn of second degree of left knee, initial encounter
  • T24.222D Burn of second degree of left knee, subsequent encounter
  • T24.222S Burn of second degree of left knee, sequela
  • T24.229 Burn of second degree of unspecified kneeNon-billable
  • T24.229A Burn of second degree of unspecified knee, initial encounter
  • T24.229D Burn of second degree of unspecified knee, subsequent encounter
  • T24.229S Burn of second degree of unspecified knee, sequela
  • T24.23 Burn of second degree of lower legNon-billable
  • T24.231 Burn of second degree of right lower legNon-billable
  • T24.231A Burn of second degree of right lower leg, initial encounter
  • T24.231D Burn of second degree of right lower leg, subsequent encounter
  • T24.231S Burn of second degree of right lower leg, sequela
  • T24.232 Burn of second degree of left lower legNon-billable
  • T24.232A Burn of second degree of left lower leg, initial encounter
  • T24.232D Burn of second degree of left lower leg, subsequent encounter
  • T24.232S Burn of second degree of left lower leg, sequela
  • T24.239 Burn of second degree of unspecified lower legNon-billable
  • T24.239A Burn of second degree of unspecified lower leg, initial encounter
  • T24.239D Burn of second degree of unspecified lower leg, subsequent encounter
  • T24.239S Burn of second degree of unspecified lower leg, sequela
  • T24.29 Burn of second degree of multiple sites of lower limb, except ankle and footNon-billable
  • T24.291 Burn of second degree of multiple sites of right lower limb, except ankle and footNon-billable
  • T24.291A Burn of second degree of multiple sites of right lower limb, except ankle and foot, initial encounter
  • T24.291D Burn of second degree of multiple sites of right lower limb, except ankle and foot, subsequent encounter
  • T24.291S Burn of second degree of multiple sites of right lower limb, except ankle and foot, sequela
  • T24.292 Burn of second degree of multiple sites of left lower limb, except ankle and footNon-billable
  • T24.292A Burn of second degree of multiple sites of left lower limb, except ankle and foot, initial encounter
  • T24.292D Burn of second degree of multiple sites of left lower limb, except ankle and foot, subsequent encounter
  • T24.292S Burn of second degree of multiple sites of left lower limb, except ankle and foot, sequela
  • T24.299 Burn of second degree of multiple sites of unspecified lower limb, except ankle and footNon-billable
  • T24.299A Burn of second degree of multiple sites of unspecified lower limb, except ankle and foot, initial encounter
  • T24.299D Burn of second degree of multiple sites of unspecified lower limb, except ankle and foot, subsequent encounter
  • T24.299S Burn of second degree of multiple sites of unspecified lower limb, except ankle and foot, sequela
  • T24.3 Burn of third degree of lower limb, except ankle and footNon-billable
  • T24.30 Burn of third degree of unspecified site of lower limb, except ankle and footNon-billable
  • T24.301 Burn of third degree of unspecified site of right lower limb, except ankle and footNon-billable
  • T24.301A Burn of third degree of unspecified site of right lower limb, except ankle and foot, initial encounter
  • T24.301D Burn of third degree of unspecified site of right lower limb, except ankle and foot, subsequent encounter
  • T24.301S Burn of third degree of unspecified site of right lower limb, except ankle and foot, sequela
  • T24.302 Burn of third degree of unspecified site of left lower limb, except ankle and footNon-billable
  • T24.302A Burn of third degree of unspecified site of left lower limb, except ankle and foot, initial encounter
  • T24.302D Burn of third degree of unspecified site of left lower limb, except ankle and foot, subsequent encounter
  • T24.302S Burn of third degree of unspecified site of left lower limb, except ankle and foot, sequela
  • T24.309 Burn of third degree of unspecified site of unspecified lower limb, except ankle and footNon-billable
  • T24.309A Burn of third degree of unspecified site of unspecified lower limb, except ankle and foot, initial encounter
  • T24.309D Burn of third degree of unspecified site of unspecified lower limb, except ankle and foot, subsequent encounter
  • T24.309S Burn of third degree of unspecified site of unspecified lower limb, except ankle and foot, sequela
  • T24.31 Burn of third degree of thighNon-billable
  • T24.311 Burn of third degree of right thighNon-billable
  • T24.311A Burn of third degree of right thigh, initial encounter
  • T24.311D Burn of third degree of right thigh, subsequent encounter
  • T24.311S Burn of third degree of right thigh, sequela
  • T24.312 Burn of third degree of left thighNon-billable
  • T24.312A Burn of third degree of left thigh, initial encounter
  • T24.312D Burn of third degree of left thigh, subsequent encounter
  • T24.312S Burn of third degree of left thigh, sequela
  • T24.319 Burn of third degree of unspecified thighNon-billable
  • T24.319A Burn of third degree of unspecified thigh, initial encounter
  • T24.319D Burn of third degree of unspecified thigh, subsequent encounter
  • T24.319S Burn of third degree of unspecified thigh, sequela
  • T24.32 Burn of third degree of kneeNon-billable
  • T24.321 Burn of third degree of right kneeNon-billable
  • T24.321A Burn of third degree of right knee, initial encounter
  • T24.321D Burn of third degree of right knee, subsequent encounter
  • T24.321S Burn of third degree of right knee, sequela
  • T24.322 Burn of third degree of left kneeNon-billable
  • T24.322A Burn of third degree of left knee, initial encounter
  • T24.322D Burn of third degree of left knee, subsequent encounter
  • T24.322S Burn of third degree of left knee, sequela
  • T24.329 Burn of third degree of unspecified kneeNon-billable
  • T24.329A Burn of third degree of unspecified knee, initial encounter
  • T24.329D Burn of third degree of unspecified knee, subsequent encounter
  • T24.329S Burn of third degree of unspecified knee, sequela
  • T24.33 Burn of third degree of lower legNon-billable
  • T24.331 Burn of third degree of right lower legNon-billable
  • T24.331A Burn of third degree of right lower leg, initial encounter
  • T24.331D Burn of third degree of right lower leg, subsequent encounter
  • T24.331S Burn of third degree of right lower leg, sequela
  • T24.332 Burn of third degree of left lower legNon-billable
  • T24.332A Burn of third degree of left lower leg, initial encounter
  • T24.332D Burn of third degree of left lower leg, subsequent encounter
  • T24.332S Burn of third degree of left lower leg, sequela
  • T24.339 Burn of third degree of unspecified lower legNon-billable
  • T24.339A Burn of third degree of unspecified lower leg, initial encounter
  • T24.339D Burn of third degree of unspecified lower leg, subsequent encounter
  • T24.339S Burn of third degree of unspecified lower leg, sequela
  • T24.39 Burn of third degree of multiple sites of lower limb, except ankle and footNon-billable
  • T24.391 Burn of third degree of multiple sites of right lower limb, except ankle and footNon-billable
  • T24.391A Burn of third degree of multiple sites of right lower limb, except ankle and foot, initial encounter
  • T24.391D Burn of third degree of multiple sites of right lower limb, except ankle and foot, subsequent encounter
  • T24.391S Burn of third degree of multiple sites of right lower limb, except ankle and foot, sequela
  • T24.392 Burn of third degree of multiple sites of left lower limb, except ankle and footNon-billable
  • T24.392A Burn of third degree of multiple sites of left lower limb, except ankle and foot, initial encounter
  • T24.392D Burn of third degree of multiple sites of left lower limb, except ankle and foot, subsequent encounter
  • T24.392S Burn of third degree of multiple sites of left lower limb, except ankle and foot, sequela
  • T24.399 Burn of third degree of multiple sites of unspecified lower limb, except ankle and footNon-billable
  • T24.399A Burn of third degree of multiple sites of unspecified lower limb, except ankle and foot, initial encounter
  • T24.399D Burn of third degree of multiple sites of unspecified lower limb, except ankle and foot, subsequent encounter
  • T24.399S Burn of third degree of multiple sites of unspecified lower limb, except ankle and foot, sequela
  • T24.4 Corrosion of unspecified degree of lower limb, except ankle and footNon-billable
  • T24.40 Corrosion of unspecified degree of unspecified site of lower limb, except ankle and footNon-billable
  • T24.401 Corrosion of unspecified degree of unspecified site of right lower limb, except ankle and footNon-billable
  • T24.401A Corrosion of unspecified degree of unspecified site of right lower limb, except ankle and foot, initial encounter
  • T24.401D Corrosion of unspecified degree of unspecified site of right lower limb, except ankle and foot, subsequent encounter
  • T24.401S Corrosion of unspecified degree of unspecified site of right lower limb, except ankle and foot, sequela
  • T24.402 Corrosion of unspecified degree of unspecified site of left lower limb, except ankle and footNon-billable
  • T24.402A Corrosion of unspecified degree of unspecified site of left lower limb, except ankle and foot, initial encounter
  • T24.402D Corrosion of unspecified degree of unspecified site of left lower limb, except ankle and foot, subsequent encounter
  • T24.402S Corrosion of unspecified degree of unspecified site of left lower limb, except ankle and foot, sequela
  • T24.409 Corrosion of unspecified degree of unspecified site of unspecified lower limb, except ankle and footNon-billable
  • T24.409A Corrosion of unspecified degree of unspecified site of unspecified lower limb, except ankle and foot, initial encounter
  • T24.409D Corrosion of unspecified degree of unspecified site of unspecified lower limb, except ankle and foot, subsequent encounter
  • T24.409S Corrosion of unspecified degree of unspecified site of unspecified lower limb, except ankle and foot, sequela
  • T24.41 Corrosion of unspecified degree of thighNon-billable
  • T24.411 Corrosion of unspecified degree of right thighNon-billable
  • T24.411A Corrosion of unspecified degree of right thigh, initial encounter
  • T24.411D Corrosion of unspecified degree of right thigh, subsequent encounter
  • T24.411S Corrosion of unspecified degree of right thigh, sequela
  • T24.412 Corrosion of unspecified degree of left thighNon-billable
  • T24.412A Corrosion of unspecified degree of left thigh, initial encounter
  • T24.412D Corrosion of unspecified degree of left thigh, subsequent encounter
  • T24.412S Corrosion of unspecified degree of left thigh, sequela
  • T24.419 Corrosion of unspecified degree of unspecified thighNon-billable
  • T24.419A Corrosion of unspecified degree of unspecified thigh, initial encounter
  • T24.419D Corrosion of unspecified degree of unspecified thigh, subsequent encounter
  • T24.419S Corrosion of unspecified degree of unspecified thigh, sequela
  • T24.42 Corrosion of unspecified degree of kneeNon-billable
  • T24.421 Corrosion of unspecified degree of right kneeNon-billable
  • T24.421A Corrosion of unspecified degree of right knee, initial encounter
  • T24.421D Corrosion of unspecified degree of right knee, subsequent encounter
  • T24.421S Corrosion of unspecified degree of right knee, sequela
  • T24.422 Corrosion of unspecified degree of left kneeNon-billable
  • T24.422A Corrosion of unspecified degree of left knee, initial encounter
  • T24.422D Corrosion of unspecified degree of left knee, subsequent encounter
  • T24.422S Corrosion of unspecified degree of left knee, sequela
  • T24.429 Corrosion of unspecified degree of unspecified kneeNon-billable
  • T24.429A Corrosion of unspecified degree of unspecified knee, initial encounter
  • T24.429D Corrosion of unspecified degree of unspecified knee, subsequent encounter
  • T24.429S Corrosion of unspecified degree of unspecified knee, sequela
  • T24.43 Corrosion of unspecified degree of lower legNon-billable
  • T24.431 Corrosion of unspecified degree of right lower legNon-billable
  • T24.431A Corrosion of unspecified degree of right lower leg, initial encounter
  • T24.431D Corrosion of unspecified degree of right lower leg, subsequent encounter
  • T24.431S Corrosion of unspecified degree of right lower leg, sequela
  • T24.432 Corrosion of unspecified degree of left lower legNon-billable
  • T24.432A Corrosion of unspecified degree of left lower leg, initial encounter
  • T24.432D Corrosion of unspecified degree of left lower leg, subsequent encounter
  • T24.432S Corrosion of unspecified degree of left lower leg, sequela
  • T24.439 Corrosion of unspecified degree of unspecified lower legNon-billable
  • T24.439A Corrosion of unspecified degree of unspecified lower leg, initial encounter
  • T24.439D Corrosion of unspecified degree of unspecified lower leg, subsequent encounter
  • T24.439S Corrosion of unspecified degree of unspecified lower leg, sequela
  • T24.49 Corrosion of unspecified degree of multiple sites of lower limb, except ankle and footNon-billable
  • T24.491 Corrosion of unspecified degree of multiple sites of right lower limb, except ankle and footNon-billable
  • T24.491A Corrosion of unspecified degree of multiple sites of right lower limb, except ankle and foot, initial encounter
  • T24.491D Corrosion of unspecified degree of multiple sites of right lower limb, except ankle and foot, subsequent encounter
  • T24.491S Corrosion of unspecified degree of multiple sites of right lower limb, except ankle and foot, sequela
  • T24.492 Corrosion of unspecified degree of multiple sites of left lower limb, except ankle and footNon-billable
  • T24.492A Corrosion of unspecified degree of multiple sites of left lower limb, except ankle and foot, initial encounter
  • T24.492D Corrosion of unspecified degree of multiple sites of left lower limb, except ankle and foot, subsequent encounter
  • T24.492S Corrosion of unspecified degree of multiple sites of left lower limb, except ankle and foot, sequela
  • T24.499 Corrosion of unspecified degree of multiple sites of unspecified lower limb, except ankle and footNon-billable
  • T24.499A Corrosion of unspecified degree of multiple sites of unspecified lower limb, except ankle and foot, initial encounter
  • T24.499D Corrosion of unspecified degree of multiple sites of unspecified lower limb, except ankle and foot, subsequent encounter
  • T24.499S Corrosion of unspecified degree of multiple sites of unspecified lower limb, except ankle and foot, sequela
  • T24.5 Corrosion of first degree of lower limb, except ankle and footNon-billable
  • T24.50 Corrosion of first degree of unspecified site of lower limb, except ankle and footNon-billable
  • T24.501 Corrosion of first degree of unspecified site of right lower limb, except ankle and footNon-billable
  • T24.501A Corrosion of first degree of unspecified site of right lower limb, except ankle and foot, initial encounter
  • T24.501D Corrosion of first degree of unspecified site of right lower limb, except ankle and foot, subsequent encounter
  • T24.501S Corrosion of first degree of unspecified site of right lower limb, except ankle and foot, sequela
  • T24.502 Corrosion of first degree of unspecified site of left lower limb, except ankle and footNon-billable
  • T24.502A Corrosion of first degree of unspecified site of left lower limb, except ankle and foot, initial encounter
  • T24.502D Corrosion of first degree of unspecified site of left lower limb, except ankle and foot, subsequent encounter
  • T24.502S Corrosion of first degree of unspecified site of left lower limb, except ankle and foot, sequela
  • T24.509 Corrosion of first degree of unspecified site of unspecified lower limb, except ankle and footNon-billable
  • T24.509A Corrosion of first degree of unspecified site of unspecified lower limb, except ankle and foot, initial encounter
  • T24.509D Corrosion of first degree of unspecified site of unspecified lower limb, except ankle and foot, subsequent encounter
  • T24.509S Corrosion of first degree of unspecified site of unspecified lower limb, except ankle and foot, sequela
  • T24.51 Corrosion of first degree of thighNon-billable
  • T24.511 Corrosion of first degree of right thighNon-billable
  • T24.511A Corrosion of first degree of right thigh, initial encounter
  • T24.511D Corrosion of first degree of right thigh, subsequent encounter
  • T24.511S Corrosion of first degree of right thigh, sequela
  • T24.512 Corrosion of first degree of left thighNon-billable
  • T24.512A Corrosion of first degree of left thigh, initial encounter
  • T24.512D Corrosion of first degree of left thigh, subsequent encounter
  • T24.512S Corrosion of first degree of left thigh, sequela
  • T24.519 Corrosion of first degree of unspecified thighNon-billable
  • T24.519A Corrosion of first degree of unspecified thigh, initial encounter
  • T24.519D Corrosion of first degree of unspecified thigh, subsequent encounter
  • T24.519S Corrosion of first degree of unspecified thigh, sequela
  • T24.52 Corrosion of first degree of kneeNon-billable
  • T24.521 Corrosion of first degree of right kneeNon-billable
  • T24.521A Corrosion of first degree of right knee, initial encounter
  • T24.521D Corrosion of first degree of right knee, subsequent encounter
  • T24.521S Corrosion of first degree of right knee, sequela
  • T24.522 Corrosion of first degree of left kneeNon-billable
  • T24.522A Corrosion of first degree of left knee, initial encounter
  • T24.522D Corrosion of first degree of left knee, subsequent encounter
  • T24.522S Corrosion of first degree of left knee, sequela
  • T24.529 Corrosion of first degree of unspecified kneeNon-billable
  • T24.529A Corrosion of first degree of unspecified knee, initial encounter
  • T24.529D Corrosion of first degree of unspecified knee, subsequent encounter
  • T24.529S Corrosion of first degree of unspecified knee, sequela
  • T24.53 Corrosion of first degree of lower legNon-billable
  • T24.531 Corrosion of first degree of right lower legNon-billable
  • T24.531A Corrosion of first degree of right lower leg, initial encounter
  • T24.531D Corrosion of first degree of right lower leg, subsequent encounter
  • T24.531S Corrosion of first degree of right lower leg, sequela
  • T24.532 Corrosion of first degree of left lower legNon-billable
  • T24.532A Corrosion of first degree of left lower leg, initial encounter
  • T24.532D Corrosion of first degree of left lower leg, subsequent encounter
  • T24.532S Corrosion of first degree of left lower leg, sequela
  • T24.539 Corrosion of first degree of unspecified lower legNon-billable
  • T24.539A Corrosion of first degree of unspecified lower leg, initial encounter
  • T24.539D Corrosion of first degree of unspecified lower leg, subsequent encounter
  • T24.539S Corrosion of first degree of unspecified lower leg, sequela
  • T24.59 Corrosion of first degree of multiple sites of lower limb, except ankle and footNon-billable
  • T24.591 Corrosion of first degree of multiple sites of right lower limb, except ankle and footNon-billable
  • T24.591A Corrosion of first degree of multiple sites of right lower limb, except ankle and foot, initial encounter
  • T24.591D Corrosion of first degree of multiple sites of right lower limb, except ankle and foot, subsequent encounter
  • T24.591S Corrosion of first degree of multiple sites of right lower limb, except ankle and foot, sequela
  • T24.592 Corrosion of first degree of multiple sites of left lower limb, except ankle and footNon-billable
  • T24.592A Corrosion of first degree of multiple sites of left lower limb, except ankle and foot, initial encounter
  • T24.592D Corrosion of first degree of multiple sites of left lower limb, except ankle and foot, subsequent encounter
  • T24.592S Corrosion of first degree of multiple sites of left lower limb, except ankle and foot, sequela
  • T24.599 Corrosion of first degree of multiple sites of unspecified lower limb, except ankle and footNon-billable
  • T24.599A Corrosion of first degree of multiple sites of unspecified lower limb, except ankle and foot, initial encounter
  • T24.599D Corrosion of first degree of multiple sites of unspecified lower limb, except ankle and foot, subsequent encounter
  • T24.599S Corrosion of first degree of multiple sites of unspecified lower limb, except ankle and foot, sequela
  • T24.6 Corrosion of second degree of lower limb, except ankle and footNon-billable
  • T24.60 Corrosion of second degree of unspecified site of lower limb, except ankle and footNon-billable
  • T24.601 Corrosion of second degree of unspecified site of right lower limb, except ankle and footNon-billable
  • T24.601A Corrosion of second degree of unspecified site of right lower limb, except ankle and foot, initial encounter
  • T24.601D Corrosion of second degree of unspecified site of right lower limb, except ankle and foot, subsequent encounter
  • T24.601S Corrosion of second degree of unspecified site of right lower limb, except ankle and foot, sequela
  • T24.602 Corrosion of second degree of unspecified site of left lower limb, except ankle and footNon-billable
  • T24.602A Corrosion of second degree of unspecified site of left lower limb, except ankle and foot, initial encounter
  • T24.602D Corrosion of second degree of unspecified site of left lower limb, except ankle and foot, subsequent encounter
  • T24.602S Corrosion of second degree of unspecified site of left lower limb, except ankle and foot, sequela
  • T24.609 Corrosion of second degree of unspecified site of unspecified lower limb, except ankle and footNon-billable
  • T24.609A Corrosion of second degree of unspecified site of unspecified lower limb, except ankle and foot, initial encounter
  • T24.609D Corrosion of second degree of unspecified site of unspecified lower limb, except ankle and foot, subsequent encounter
  • T24.609S Corrosion of second degree of unspecified site of unspecified lower limb, except ankle and foot, sequela
  • T24.61 Corrosion of second degree of thighNon-billable
  • T24.611 Corrosion of second degree of right thighNon-billable
  • T24.611A Corrosion of second degree of right thigh, initial encounter
  • T24.611D Corrosion of second degree of right thigh, subsequent encounter
  • T24.611S Corrosion of second degree of right thigh, sequela
  • T24.612 Corrosion of second degree of left thighNon-billable
  • T24.612A Corrosion of second degree of left thigh, initial encounter
  • T24.612D Corrosion of second degree of left thigh, subsequent encounter
  • T24.612S Corrosion of second degree of left thigh, sequela
  • T24.619 Corrosion of second degree of unspecified thighNon-billable
  • T24.619A Corrosion of second degree of unspecified thigh, initial encounter
  • T24.619D Corrosion of second degree of unspecified thigh, subsequent encounter
  • T24.619S Corrosion of second degree of unspecified thigh, sequela
  • T24.62 Corrosion of second degree of kneeNon-billable
  • T24.621 Corrosion of second degree of right kneeNon-billable
  • T24.621A Corrosion of second degree of right knee, initial encounter
  • T24.621D Corrosion of second degree of right knee, subsequent encounter
  • T24.621S Corrosion of second degree of right knee, sequela
  • T24.622 Corrosion of second degree of left kneeNon-billable
  • T24.622A Corrosion of second degree of left knee, initial encounter
  • T24.622D Corrosion of second degree of left knee, subsequent encounter
  • T24.622S Corrosion of second degree of left knee, sequela
  • T24.629 Corrosion of second degree of unspecified kneeNon-billable
  • T24.629A Corrosion of second degree of unspecified knee, initial encounter
  • T24.629D Corrosion of second degree of unspecified knee, subsequent encounter
  • T24.629S Corrosion of second degree of unspecified knee, sequela
  • T24.63 Corrosion of second degree of lower legNon-billable
  • T24.631 Corrosion of second degree of right lower legNon-billable
  • T24.631A Corrosion of second degree of right lower leg, initial encounter
  • T24.631D Corrosion of second degree of right lower leg, subsequent encounter
  • T24.631S Corrosion of second degree of right lower leg, sequela
  • T24.632 Corrosion of second degree of left lower legNon-billable
  • T24.632A Corrosion of second degree of left lower leg, initial encounter
  • T24.632D Corrosion of second degree of left lower leg, subsequent encounter
  • T24.632S Corrosion of second degree of left lower leg, sequela
  • T24.639 Corrosion of second degree of unspecified lower legNon-billable
  • T24.639A Corrosion of second degree of unspecified lower leg, initial encounter
  • T24.639D Corrosion of second degree of unspecified lower leg, subsequent encounter
  • T24.639S Corrosion of second degree of unspecified lower leg, sequela
  • T24.69 Corrosion of second degree of multiple sites of lower limb, except ankle and footNon-billable
  • T24.691 Corrosion of second degree of multiple sites of right lower limb, except ankle and footNon-billable
  • T24.691A Corrosion of second degree of multiple sites of right lower limb, except ankle and foot, initial encounter
  • T24.691D Corrosion of second degree of multiple sites of right lower limb, except ankle and foot, subsequent encounter
  • T24.691S Corrosion of second degree of multiple sites of right lower limb, except ankle and foot, sequela
  • T24.692 Corrosion of second degree of multiple sites of left lower limb, except ankle and footNon-billable
  • T24.692A Corrosion of second degree of multiple sites of left lower limb, except ankle and foot, initial encounter
  • T24.692D Corrosion of second degree of multiple sites of left lower limb, except ankle and foot, subsequent encounter
  • T24.692S Corrosion of second degree of multiple sites of left lower limb, except ankle and foot, sequela
  • T24.699 Corrosion of second degree of multiple sites of unspecified lower limb, except ankle and footNon-billable
  • T24.699A Corrosion of second degree of multiple sites of unspecified lower limb, except ankle and foot, initial encounter
  • T24.699D Corrosion of second degree of multiple sites of unspecified lower limb, except ankle and foot, subsequent encounter
  • T24.699S Corrosion of second degree of multiple sites of unspecified lower limb, except ankle and foot, sequela
  • T24.7 Corrosion of third degree of lower limb, except ankle and footNon-billable
  • T24.70 Corrosion of third degree of unspecified site of lower limb, except ankle and footNon-billable
  • T24.701 Corrosion of third degree of unspecified site of right lower limb, except ankle and footNon-billable
  • T24.701A Corrosion of third degree of unspecified site of right lower limb, except ankle and foot, initial encounter
  • T24.701D Corrosion of third degree of unspecified site of right lower limb, except ankle and foot, subsequent encounter
  • T24.701S Corrosion of third degree of unspecified site of right lower limb, except ankle and foot, sequela
  • T24.702 Corrosion of third degree of unspecified site of left lower limb, except ankle and footNon-billable
  • T24.702A Corrosion of third degree of unspecified site of left lower limb, except ankle and foot, initial encounter
  • T24.702D Corrosion of third degree of unspecified site of left lower limb, except ankle and foot, subsequent encounter
  • T24.702S Corrosion of third degree of unspecified site of left lower limb, except ankle and foot, sequela
  • T24.709 Corrosion of third degree of unspecified site of unspecified lower limb, except ankle and footNon-billable
  • T24.709A Corrosion of third degree of unspecified site of unspecified lower limb, except ankle and foot, initial encounter
  • T24.709D Corrosion of third degree of unspecified site of unspecified lower limb, except ankle and foot, subsequent encounter
  • T24.709S Corrosion of third degree of unspecified site of unspecified lower limb, except ankle and foot, sequela
  • T24.71 Corrosion of third degree of thighNon-billable
  • T24.711 Corrosion of third degree of right thighNon-billable
  • T24.711A Corrosion of third degree of right thigh, initial encounter
  • T24.711D Corrosion of third degree of right thigh, subsequent encounter
  • T24.711S Corrosion of third degree of right thigh, sequela
  • T24.712 Corrosion of third degree of left thighNon-billable
  • T24.712A Corrosion of third degree of left thigh, initial encounter
  • T24.712D Corrosion of third degree of left thigh, subsequent encounter
  • T24.712S Corrosion of third degree of left thigh, sequela
  • T24.719 Corrosion of third degree of unspecified thighNon-billable
  • T24.719A Corrosion of third degree of unspecified thigh, initial encounter
  • T24.719D Corrosion of third degree of unspecified thigh, subsequent encounter
  • T24.719S Corrosion of third degree of unspecified thigh, sequela
  • T24.72 Corrosion of third degree of kneeNon-billable
  • T24.721 Corrosion of third degree of right kneeNon-billable
  • T24.721A Corrosion of third degree of right knee, initial encounter
  • T24.721D Corrosion of third degree of right knee, subsequent encounter
  • T24.721S Corrosion of third degree of right knee, sequela
  • T24.722 Corrosion of third degree of left kneeNon-billable
  • T24.722A Corrosion of third degree of left knee, initial encounter
  • T24.722D Corrosion of third degree of left knee, subsequent encounter
  • T24.722S Corrosion of third degree of left knee, sequela
  • T24.729 Corrosion of third degree of unspecified kneeNon-billable
  • T24.729A Corrosion of third degree of unspecified knee, initial encounter
  • T24.729D Corrosion of third degree of unspecified knee, subsequent encounter
  • T24.729S Corrosion of third degree of unspecified knee, sequela
  • T24.73 Corrosion of third degree of lower legNon-billable
  • T24.731 Corrosion of third degree of right lower legNon-billable
  • T24.731A Corrosion of third degree of right lower leg, initial encounter
  • T24.731D Corrosion of third degree of right lower leg, subsequent encounter
  • T24.731S Corrosion of third degree of right lower leg, sequela
  • T24.732 Corrosion of third degree of left lower legNon-billable
  • T24.732A Corrosion of third degree of left lower leg, initial encounter
  • T24.732D Corrosion of third degree of left lower leg, subsequent encounter
  • T24.732S Corrosion of third degree of left lower leg, sequela
  • T24.739 Corrosion of third degree of unspecified lower legNon-billable
  • T24.739A Corrosion of third degree of unspecified lower leg, initial encounter
  • T24.739D Corrosion of third degree of unspecified lower leg, subsequent encounter
  • T24.739S Corrosion of third degree of unspecified lower leg, sequela
  • T24.79 Corrosion of third degree of multiple sites of lower limb, except ankle and footNon-billable
  • T24.791 Corrosion of third degree of multiple sites of right lower limb, except ankle and footNon-billable
  • T24.791A Corrosion of third degree of multiple sites of right lower limb, except ankle and foot, initial encounter
  • T24.791D Corrosion of third degree of multiple sites of right lower limb, except ankle and foot, subsequent encounter
  • T24.791S Corrosion of third degree of multiple sites of right lower limb, except ankle and foot, sequela
  • T24.792 Corrosion of third degree of multiple sites of left lower limb, except ankle and footNon-billable
  • T24.792A Corrosion of third degree of multiple sites of left lower limb, except ankle and foot, initial encounter
  • T24.792D Corrosion of third degree of multiple sites of left lower limb, except ankle and foot, subsequent encounter
  • T24.792S Corrosion of third degree of multiple sites of left lower limb, except ankle and foot, sequela
  • T24.799 Corrosion of third degree of multiple sites of unspecified lower limb, except ankle and footNon-billable
  • T24.799A Corrosion of third degree of multiple sites of unspecified lower limb, except ankle and foot, initial encounter
  • T24.799D Corrosion of third degree of multiple sites of unspecified lower limb, except ankle and foot, subsequent encounter
  • T24.799S Corrosion of third degree of multiple sites of unspecified lower limb, except ankle and foot, sequela

About the T24 Code Range

The ICD-10 code section T24 covers burns and corrosions specifically affecting the lower limb, excluding the ankle and foot areas. These codes classify burns by severity—from unspecified to first, second, and third degree—and by location, including thigh, knee, and lower leg, with distinctions for right, left, or unspecified limbs.

This category is essential for coding various types of skin injuries on the lower limbs except the ankle and foot, such as epidermal burns (first-degree burns), partial thickness burns (second-degree burns), and full thickness burns (third-degree burns). The section also includes specific codes for corrosions, which typically denote chemical burns. Synonyms like "burn of right lower leg," "epidermal burn of thigh," "partial thickness burn of knee," and "chemical burn of left lower leg" help clarify which codes to use. Additionally, the codes allow differentiation between initial encounters, subsequent treatment phases, and sequelae (long-term complications). This detailed classification supports accurate documentation and treatment tracking, making the ICD-10 code for burn and corrosion of lower limb except ankle and foot a valuable tool for precise healthcare reporting.

Questions About This Page

How many billable codes are in the T24 range?

Of the 529 codes in this range, 360 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.

What does the T24 range classify?

The range classifies burn and corrosion of lower limb, except ankle and foot. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.

Related References

All ICD-10-CM ChaptersAll of Chapter 19ICD-10-CM Code LookupMS-DRG ReferenceMedicare Code EditsPOA Exempt Codes

Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.