Burn and corrosion of trunk (T21)

Browse all the diagnosis codes used for burn and corrosion of trunk (t21). For easy navigation, the diagnosis codes are sorted in alphabetical order and grouped by sections. Each section is clearly marked with its description, and the corresponding three-digit code range. This format makes it simple to browse diagnosis codes in this chapter or section and find what you're looking for. We've also added green checkmark icons to label billable codes, and red warning icons for non-billable ones. This makes it easy to identify which codes can be billed.

Instructional Notations

Includes

This note appears immediately under a three character code title to further define, or give examples of, the content of the category.

  • burns and corrosion of hip region

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.

  • burns and corrosion of axilla T22
  • burns and corrosion of scapular region T22
  • burns and corrosion of shoulder T22

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.

  • The appropriate 7th character is to be added to each code from category T21

7th Character

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

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela
  • Injury, poisoning and certain other consequences of external causes (S00–T88)

    • Burns and corrosions of external body surface, specified by site (T20-T25)

        • Burn and corrosion of trunk (T21)

        • T21 Burn and corrosion of trunk
        • T21.0 Burn of unspecified degree of trunk
        • T21.00 Burn of unspecified degree of trunk, unspecified site
        • T21.00XA Burn of unspecified degree of trunk, unspecified site, initial encounter
        • T21.00XD Burn of unspecified degree of trunk, unspecified site, subsequent encounter
        • T21.00XS Burn of unspecified degree of trunk, unspecified site, sequela
        • T21.01 Burn of unspecified degree of chest wall
        • T21.01XA Burn of unspecified degree of chest wall, initial encounter
        • T21.01XD Burn of unspecified degree of chest wall, subsequent encounter
        • T21.01XS Burn of unspecified degree of chest wall, sequela
        • T21.02 Burn of unspecified degree of abdominal wall
        • T21.02XA Burn of unspecified degree of abdominal wall, initial encounter
        • T21.02XD Burn of unspecified degree of abdominal wall, subsequent encounter
        • T21.02XS Burn of unspecified degree of abdominal wall, sequela
        • T21.03 Burn of unspecified degree of upper back
        • T21.03XA Burn of unspecified degree of upper back, initial encounter
        • T21.03XD Burn of unspecified degree of upper back, subsequent encounter
        • T21.03XS Burn of unspecified degree of upper back, sequela
        • T21.04 Burn of unspecified degree of lower back
        • T21.04XA Burn of unspecified degree of lower back, initial encounter
        • T21.04XD Burn of unspecified degree of lower back, subsequent encounter
        • T21.04XS Burn of unspecified degree of lower back, sequela
        • T21.05 Burn of unspecified degree of buttock
        • T21.05XA Burn of unspecified degree of buttock, initial encounter
        • T21.05XD Burn of unspecified degree of buttock, subsequent encounter
        • T21.05XS Burn of unspecified degree of buttock, sequela
        • T21.06 Burn of unspecified degree of male genital region
        • T21.06XA Burn of unspecified degree of male genital region, initial encounter
        • T21.06XD Burn of unspecified degree of male genital region, subsequent encounter
        • T21.06XS Burn of unspecified degree of male genital region, sequela
        • T21.07 Burn of unspecified degree of female genital region
        • T21.07XA Burn of unspecified degree of female genital region, initial encounter
        • T21.07XD Burn of unspecified degree of female genital region, subsequent encounter
        • T21.07XS Burn of unspecified degree of female genital region, sequela
        • T21.09 Burn of unspecified degree of other site of trunk
        • T21.09XA Burn of unspecified degree of other site of trunk, initial encounter
        • T21.09XD Burn of unspecified degree of other site of trunk, subsequent encounter
        • T21.09XS Burn of unspecified degree of other site of trunk, sequela
        • T21.1 Burn of first degree of trunk
        • T21.10 Burn of first degree of trunk, unspecified site
        • T21.10XA Burn of first degree of trunk, unspecified site, initial encounter
        • T21.10XD Burn of first degree of trunk, unspecified site, subsequent encounter
        • T21.10XS Burn of first degree of trunk, unspecified site, sequela
        • T21.11 Burn of first degree of chest wall
        • T21.11XA Burn of first degree of chest wall, initial encounter
        • T21.11XD Burn of first degree of chest wall, subsequent encounter
        • T21.11XS Burn of first degree of chest wall, sequela
        • T21.12 Burn of first degree of abdominal wall
        • T21.12XA Burn of first degree of abdominal wall, initial encounter
        • T21.12XD Burn of first degree of abdominal wall, subsequent encounter
        • T21.12XS Burn of first degree of abdominal wall, sequela
        • T21.13 Burn of first degree of upper back
        • T21.13XA Burn of first degree of upper back, initial encounter
        • T21.13XD Burn of first degree of upper back, subsequent encounter
        • T21.13XS Burn of first degree of upper back, sequela
        • T21.14 Burn of first degree of lower back
        • T21.14XA Burn of first degree of lower back, initial encounter
        • T21.14XD Burn of first degree of lower back, subsequent encounter
        • T21.14XS Burn of first degree of lower back, sequela
        • T21.15 Burn of first degree of buttock
        • T21.15XA Burn of first degree of buttock, initial encounter
        • T21.15XD Burn of first degree of buttock, subsequent encounter
        • T21.15XS Burn of first degree of buttock, sequela
        • T21.16 Burn of first degree of male genital region
        • T21.16XA Burn of first degree of male genital region, initial encounter
        • T21.16XD Burn of first degree of male genital region, subsequent encounter
        • T21.16XS Burn of first degree of male genital region, sequela
        • T21.17 Burn of first degree of female genital region
        • T21.17XA Burn of first degree of female genital region, initial encounter
        • T21.17XD Burn of first degree of female genital region, subsequent encounter
        • T21.17XS Burn of first degree of female genital region, sequela
        • T21.19 Burn of first degree of other site of trunk
        • T21.19XA Burn of first degree of other site of trunk, initial encounter
        • T21.19XD Burn of first degree of other site of trunk, subsequent encounter
        • T21.19XS Burn of first degree of other site of trunk, sequela
        • T21.2 Burn of second degree of trunk
        • T21.20 Burn of second degree of trunk, unspecified site
        • T21.20XA Burn of second degree of trunk, unspecified site, initial encounter
        • T21.20XD Burn of second degree of trunk, unspecified site, subsequent encounter
        • T21.20XS Burn of second degree of trunk, unspecified site, sequela
        • T21.21 Burn of second degree of chest wall
        • T21.21XA Burn of second degree of chest wall, initial encounter
        • T21.21XD Burn of second degree of chest wall, subsequent encounter
        • T21.21XS Burn of second degree of chest wall, sequela
        • T21.22 Burn of second degree of abdominal wall
        • T21.22XA Burn of second degree of abdominal wall, initial encounter
        • T21.22XD Burn of second degree of abdominal wall, subsequent encounter
        • T21.22XS Burn of second degree of abdominal wall, sequela
        • T21.23 Burn of second degree of upper back
        • T21.23XA Burn of second degree of upper back, initial encounter
        • T21.23XD Burn of second degree of upper back, subsequent encounter
        • T21.23XS Burn of second degree of upper back, sequela
        • T21.24 Burn of second degree of lower back
        • T21.24XA Burn of second degree of lower back, initial encounter
        • T21.24XD Burn of second degree of lower back, subsequent encounter
        • T21.24XS Burn of second degree of lower back, sequela
        • T21.25 Burn of second degree of buttock
        • T21.25XA Burn of second degree of buttock, initial encounter
        • T21.25XD Burn of second degree of buttock, subsequent encounter
        • T21.25XS Burn of second degree of buttock, sequela
        • T21.26 Burn of second degree of male genital region
        • T21.26XA Burn of second degree of male genital region, initial encounter
        • T21.26XD Burn of second degree of male genital region, subsequent encounter
        • T21.26XS Burn of second degree of male genital region, sequela
        • T21.27 Burn of second degree of female genital region
        • T21.27XA Burn of second degree of female genital region, initial encounter
        • T21.27XD Burn of second degree of female genital region, subsequent encounter
        • T21.27XS Burn of second degree of female genital region, sequela
        • T21.29 Burn of second degree of other site of trunk
        • T21.29XA Burn of second degree of other site of trunk, initial encounter
        • T21.29XD Burn of second degree of other site of trunk, subsequent encounter
        • T21.29XS Burn of second degree of other site of trunk, sequela
        • T21.3 Burn of third degree of trunk
        • T21.30 Burn of third degree of trunk, unspecified site
        • T21.30XA Burn of third degree of trunk, unspecified site, initial encounter
        • T21.30XD Burn of third degree of trunk, unspecified site, subsequent encounter
        • T21.30XS Burn of third degree of trunk, unspecified site, sequela
        • T21.31 Burn of third degree of chest wall
        • T21.31XA Burn of third degree of chest wall, initial encounter
        • T21.31XD Burn of third degree of chest wall, subsequent encounter
        • T21.31XS Burn of third degree of chest wall, sequela
        • T21.32 Burn of third degree of abdominal wall
        • T21.32XA Burn of third degree of abdominal wall, initial encounter
        • T21.32XD Burn of third degree of abdominal wall, subsequent encounter
        • T21.32XS Burn of third degree of abdominal wall, sequela
        • T21.33 Burn of third degree of upper back
        • T21.33XA Burn of third degree of upper back, initial encounter
        • T21.33XD Burn of third degree of upper back, subsequent encounter
        • T21.33XS Burn of third degree of upper back, sequela
        • T21.34 Burn of third degree of lower back
        • T21.34XA Burn of third degree of lower back, initial encounter
        • T21.34XD Burn of third degree of lower back, subsequent encounter
        • T21.34XS Burn of third degree of lower back, sequela
        • T21.35 Burn of third degree of buttock
        • T21.35XA Burn of third degree of buttock, initial encounter
        • T21.35XD Burn of third degree of buttock, subsequent encounter
        • T21.35XS Burn of third degree of buttock, sequela
        • T21.36 Burn of third degree of male genital region
        • T21.36XA Burn of third degree of male genital region, initial encounter
        • T21.36XD Burn of third degree of male genital region, subsequent encounter
        • T21.36XS Burn of third degree of male genital region, sequela
        • T21.37 Burn of third degree of female genital region
        • T21.37XA Burn of third degree of female genital region, initial encounter
        • T21.37XD Burn of third degree of female genital region, subsequent encounter
        • T21.37XS Burn of third degree of female genital region, sequela
        • T21.39 Burn of third degree of other site of trunk
        • T21.39XA Burn of third degree of other site of trunk, initial encounter
        • T21.39XD Burn of third degree of other site of trunk, subsequent encounter
        • T21.39XS Burn of third degree of other site of trunk, sequela
        • T21.4 Corrosion of unspecified degree of trunk
        • T21.40 Corrosion of unspecified degree of trunk, unspecified site
        • T21.40XA Corrosion of unspecified degree of trunk, unspecified site, initial encounter
        • T21.40XD Corrosion of unspecified degree of trunk, unspecified site, subsequent encounter
        • T21.40XS Corrosion of unspecified degree of trunk, unspecified site, sequela
        • T21.41 Corrosion of unspecified degree of chest wall
        • T21.41XA Corrosion of unspecified degree of chest wall, initial encounter
        • T21.41XD Corrosion of unspecified degree of chest wall, subsequent encounter
        • T21.41XS Corrosion of unspecified degree of chest wall, sequela
        • T21.42 Corrosion of unspecified degree of abdominal wall
        • T21.42XA Corrosion of unspecified degree of abdominal wall, initial encounter
        • T21.42XD Corrosion of unspecified degree of abdominal wall, subsequent encounter
        • T21.42XS Corrosion of unspecified degree of abdominal wall, sequela
        • T21.43 Corrosion of unspecified degree of upper back
        • T21.43XA Corrosion of unspecified degree of upper back, initial encounter
        • T21.43XD Corrosion of unspecified degree of upper back, subsequent encounter
        • T21.43XS Corrosion of unspecified degree of upper back, sequela
        • T21.44 Corrosion of unspecified degree of lower back
        • T21.44XA Corrosion of unspecified degree of lower back, initial encounter
        • T21.44XD Corrosion of unspecified degree of lower back, subsequent encounter
        • T21.44XS Corrosion of unspecified degree of lower back, sequela
        • T21.45 Corrosion of unspecified degree of buttock
        • T21.45XA Corrosion of unspecified degree of buttock, initial encounter
        • T21.45XD Corrosion of unspecified degree of buttock, subsequent encounter
        • T21.45XS Corrosion of unspecified degree of buttock, sequela
        • T21.46 Corrosion of unspecified degree of male genital region
        • T21.46XA Corrosion of unspecified degree of male genital region, initial encounter
        • T21.46XD Corrosion of unspecified degree of male genital region, subsequent encounter
        • T21.46XS Corrosion of unspecified degree of male genital region, sequela
        • T21.47 Corrosion of unspecified degree of female genital region
        • T21.47XA Corrosion of unspecified degree of female genital region, initial encounter
        • T21.47XD Corrosion of unspecified degree of female genital region, subsequent encounter
        • T21.47XS Corrosion of unspecified degree of female genital region, sequela
        • T21.49 Corrosion of unspecified degree of other site of trunk
        • T21.49XA Corrosion of unspecified degree of other site of trunk, initial encounter
        • T21.49XD Corrosion of unspecified degree of other site of trunk, subsequent encounter
        • T21.49XS Corrosion of unspecified degree of other site of trunk, sequela
        • T21.5 Corrosion of first degree of trunk
        • T21.50 Corrosion of first degree of trunk, unspecified site
        • T21.50XA Corrosion of first degree of trunk, unspecified site, initial encounter
        • T21.50XD Corrosion of first degree of trunk, unspecified site, subsequent encounter
        • T21.50XS Corrosion of first degree of trunk, unspecified site, sequela
        • T21.51 Corrosion of first degree of chest wall
        • T21.51XA Corrosion of first degree of chest wall, initial encounter
        • T21.51XD Corrosion of first degree of chest wall, subsequent encounter
        • T21.51XS Corrosion of first degree of chest wall, sequela
        • T21.52 Corrosion of first degree of abdominal wall
        • T21.52XA Corrosion of first degree of abdominal wall, initial encounter
        • T21.52XD Corrosion of first degree of abdominal wall, subsequent encounter
        • T21.52XS Corrosion of first degree of abdominal wall, sequela
        • T21.53 Corrosion of first degree of upper back
        • T21.53XA Corrosion of first degree of upper back, initial encounter
        • T21.53XD Corrosion of first degree of upper back, subsequent encounter
        • T21.53XS Corrosion of first degree of upper back, sequela
        • T21.54 Corrosion of first degree of lower back
        • T21.54XA Corrosion of first degree of lower back, initial encounter
        • T21.54XD Corrosion of first degree of lower back, subsequent encounter
        • T21.54XS Corrosion of first degree of lower back, sequela
        • T21.55 Corrosion of first degree of buttock
        • T21.55XA Corrosion of first degree of buttock, initial encounter
        • T21.55XD Corrosion of first degree of buttock, subsequent encounter
        • T21.55XS Corrosion of first degree of buttock, sequela
        • T21.56 Corrosion of first degree of male genital region
        • T21.56XA Corrosion of first degree of male genital region, initial encounter
        • T21.56XD Corrosion of first degree of male genital region, subsequent encounter
        • T21.56XS Corrosion of first degree of male genital region, sequela
        • T21.57 Corrosion of first degree of female genital region
        • T21.57XA Corrosion of first degree of female genital region, initial encounter
        • T21.57XD Corrosion of first degree of female genital region, subsequent encounter
        • T21.57XS Corrosion of first degree of female genital region, sequela
        • T21.59 Corrosion of first degree of other site of trunk
        • T21.59XA Corrosion of first degree of other site of trunk, initial encounter
        • T21.59XD Corrosion of first degree of other site of trunk, subsequent encounter
        • T21.59XS Corrosion of first degree of other site of trunk, sequela
        • T21.6 Corrosion of second degree of trunk
        • T21.60 Corrosion of second degree of trunk, unspecified site
        • T21.60XA Corrosion of second degree of trunk, unspecified site, initial encounter
        • T21.60XD Corrosion of second degree of trunk, unspecified site, subsequent encounter
        • T21.60XS Corrosion of second degree of trunk, unspecified site, sequela
        • T21.61 Corrosion of second degree of chest wall
        • T21.61XA Corrosion of second degree of chest wall, initial encounter
        • T21.61XD Corrosion of second degree of chest wall, subsequent encounter
        • T21.61XS Corrosion of second degree of chest wall, sequela
        • T21.62 Corrosion of second degree of abdominal wall
        • T21.62XA Corrosion of second degree of abdominal wall, initial encounter
        • T21.62XD Corrosion of second degree of abdominal wall, subsequent encounter
        • T21.62XS Corrosion of second degree of abdominal wall, sequela
        • T21.63 Corrosion of second degree of upper back
        • T21.63XA Corrosion of second degree of upper back, initial encounter
        • T21.63XD Corrosion of second degree of upper back, subsequent encounter
        • T21.63XS Corrosion of second degree of upper back, sequela
        • T21.64 Corrosion of second degree of lower back
        • T21.64XA Corrosion of second degree of lower back, initial encounter
        • T21.64XD Corrosion of second degree of lower back, subsequent encounter
        • T21.64XS Corrosion of second degree of lower back, sequela
        • T21.65 Corrosion of second degree of buttock
        • T21.65XA Corrosion of second degree of buttock, initial encounter
        • T21.65XD Corrosion of second degree of buttock, subsequent encounter
        • T21.65XS Corrosion of second degree of buttock, sequela
        • T21.66 Corrosion of second degree of male genital region
        • T21.66XA Corrosion of second degree of male genital region, initial encounter
        • T21.66XD Corrosion of second degree of male genital region, subsequent encounter
        • T21.66XS Corrosion of second degree of male genital region, sequela
        • T21.67 Corrosion of second degree of female genital region
        • T21.67XA Corrosion of second degree of female genital region, initial encounter
        • T21.67XD Corrosion of second degree of female genital region, subsequent encounter
        • T21.67XS Corrosion of second degree of female genital region, sequela
        • T21.69 Corrosion of second degree of other site of trunk
        • T21.69XA Corrosion of second degree of other site of trunk, initial encounter
        • T21.69XD Corrosion of second degree of other site of trunk, subsequent encounter
        • T21.69XS Corrosion of second degree of other site of trunk, sequela
        • T21.7 Corrosion of third degree of trunk
        • T21.70 Corrosion of third degree of trunk, unspecified site
        • T21.70XA Corrosion of third degree of trunk, unspecified site, initial encounter
        • T21.70XD Corrosion of third degree of trunk, unspecified site, subsequent encounter
        • T21.70XS Corrosion of third degree of trunk, unspecified site, sequela
        • T21.71 Corrosion of third degree of chest wall
        • T21.71XA Corrosion of third degree of chest wall, initial encounter
        • T21.71XD Corrosion of third degree of chest wall, subsequent encounter
        • T21.71XS Corrosion of third degree of chest wall, sequela
        • T21.72 Corrosion of third degree of abdominal wall
        • T21.72XA Corrosion of third degree of abdominal wall, initial encounter
        • T21.72XD Corrosion of third degree of abdominal wall, subsequent encounter
        • T21.72XS Corrosion of third degree of abdominal wall, sequela
        • T21.73 Corrosion of third degree of upper back
        • T21.73XA Corrosion of third degree of upper back, initial encounter
        • T21.73XD Corrosion of third degree of upper back, subsequent encounter
        • T21.73XS Corrosion of third degree of upper back, sequela
        • T21.74 Corrosion of third degree of lower back
        • T21.74XA Corrosion of third degree of lower back, initial encounter
        • T21.74XD Corrosion of third degree of lower back, subsequent encounter
        • T21.74XS Corrosion of third degree of lower back, sequela
        • T21.75 Corrosion of third degree of buttock
        • T21.75XA Corrosion of third degree of buttock, initial encounter
        • T21.75XD Corrosion of third degree of buttock, subsequent encounter
        • T21.75XS Corrosion of third degree of buttock, sequela
        • T21.76 Corrosion of third degree of male genital region
        • T21.76XA Corrosion of third degree of male genital region, initial encounter
        • T21.76XD Corrosion of third degree of male genital region, subsequent encounter
        • T21.76XS Corrosion of third degree of male genital region, sequela
        • T21.77 Corrosion of third degree of female genital region
        • T21.77XA Corrosion of third degree of female genital region, initial encounter
        • T21.77XD Corrosion of third degree of female genital region, subsequent encounter
        • T21.77XS Corrosion of third degree of female genital region, sequela
        • T21.79 Corrosion of third degree of other site of trunk
        • T21.79XA Corrosion of third degree of other site of trunk, initial encounter
        • T21.79XD Corrosion of third degree of other site of trunk, subsequent encounter
        • T21.79XS Corrosion of third degree of other site of trunk, sequela