ICD-10-CM Tabular Index · Chapter 19 · FY 2026 S80

Superficial injury of knee and lower leg (S80) ICD-10-CM

The S80 code range covers superficial injury of knee and lower leg with 212 ICD-10-CM diagnosis codes. 144 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
212
Diagnosis Codes
144
Billable Codes
S80
Code Range
S80–S89
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 S80 Range 212 codes · 144 billable

212 of 212 shown
  • S80 Superficial injury of knee and lower legNon-billable
  • S80.0 Contusion of kneeNon-billable
  • S80.00 Contusion of unspecified kneeNon-billable
  • S80.00XA Contusion of unspecified knee, initial encounter
  • S80.00XD Contusion of unspecified knee, subsequent encounter
  • S80.00XS Contusion of unspecified knee, sequela
  • S80.01 Contusion of right kneeNon-billable
  • S80.01XA Contusion of right knee, initial encounter
  • S80.01XD Contusion of right knee, subsequent encounter
  • S80.01XS Contusion of right knee, sequela
  • S80.02 Contusion of left kneeNon-billable
  • S80.02XA Contusion of left knee, initial encounter
  • S80.02XD Contusion of left knee, subsequent encounter
  • S80.02XS Contusion of left knee, sequela
  • S80.1 Contusion of lower legNon-billable
  • S80.10 Contusion of unspecified lower legNon-billable
  • S80.10XA Contusion of unspecified lower leg, initial encounter
  • S80.10XD Contusion of unspecified lower leg, subsequent encounter
  • S80.10XS Contusion of unspecified lower leg, sequela
  • S80.11 Contusion of right lower legNon-billable
  • S80.11XA Contusion of right lower leg, initial encounter
  • S80.11XD Contusion of right lower leg, subsequent encounter
  • S80.11XS Contusion of right lower leg, sequela
  • S80.12 Contusion of left lower legNon-billable
  • S80.12XA Contusion of left lower leg, initial encounter
  • S80.12XD Contusion of left lower leg, subsequent encounter
  • S80.12XS Contusion of left lower leg, sequela
  • S80.2 Other superficial injuries of kneeNon-billable
  • S80.21 Abrasion of kneeNon-billable
  • S80.211 Abrasion, right kneeNon-billable
  • S80.211A Abrasion, right knee, initial encounter
  • S80.211D Abrasion, right knee, subsequent encounter
  • S80.211S Abrasion, right knee, sequela
  • S80.212 Abrasion, left kneeNon-billable
  • S80.212A Abrasion, left knee, initial encounter
  • S80.212D Abrasion, left knee, subsequent encounter
  • S80.212S Abrasion, left knee, sequela
  • S80.219 Abrasion, unspecified kneeNon-billable
  • S80.219A Abrasion, unspecified knee, initial encounter
  • S80.219D Abrasion, unspecified knee, subsequent encounter
  • S80.219S Abrasion, unspecified knee, sequela
  • S80.22 Blister (nonthermal) of kneeNon-billable
  • S80.221 Blister (nonthermal), right kneeNon-billable
  • S80.221A Blister (nonthermal), right knee, initial encounter
  • S80.221D Blister (nonthermal), right knee, subsequent encounter
  • S80.221S Blister (nonthermal), right knee, sequela
  • S80.222 Blister (nonthermal), left kneeNon-billable
  • S80.222A Blister (nonthermal), left knee, initial encounter
  • S80.222D Blister (nonthermal), left knee, subsequent encounter
  • S80.222S Blister (nonthermal), left knee, sequela
  • S80.229 Blister (nonthermal), unspecified kneeNon-billable
  • S80.229A Blister (nonthermal), unspecified knee, initial encounter
  • S80.229D Blister (nonthermal), unspecified knee, subsequent encounter
  • S80.229S Blister (nonthermal), unspecified knee, sequela
  • S80.24 External constriction of kneeNon-billable
  • S80.241 External constriction, right kneeNon-billable
  • S80.241A External constriction, right knee, initial encounter
  • S80.241D External constriction, right knee, subsequent encounter
  • S80.241S External constriction, right knee, sequela
  • S80.242 External constriction, left kneeNon-billable
  • S80.242A External constriction, left knee, initial encounter
  • S80.242D External constriction, left knee, subsequent encounter
  • S80.242S External constriction, left knee, sequela
  • S80.249 External constriction, unspecified kneeNon-billable
  • S80.249A External constriction, unspecified knee, initial encounter
  • S80.249D External constriction, unspecified knee, subsequent encounter
  • S80.249S External constriction, unspecified knee, sequela
  • S80.25 Superficial foreign body of kneeNon-billable
  • S80.251 Superficial foreign body, right kneeNon-billable
  • S80.251A Superficial foreign body, right knee, initial encounter
  • S80.251D Superficial foreign body, right knee, subsequent encounter
  • S80.251S Superficial foreign body, right knee, sequela
  • S80.252 Superficial foreign body, left kneeNon-billable
  • S80.252A Superficial foreign body, left knee, initial encounter
  • S80.252D Superficial foreign body, left knee, subsequent encounter
  • S80.252S Superficial foreign body, left knee, sequela
  • S80.259 Superficial foreign body, unspecified kneeNon-billable
  • S80.259A Superficial foreign body, unspecified knee, initial encounter
  • S80.259D Superficial foreign body, unspecified knee, subsequent encounter
  • S80.259S Superficial foreign body, unspecified knee, sequela
  • S80.26 Insect bite (nonvenomous) of kneeNon-billable
  • S80.261 Insect bite (nonvenomous), right kneeNon-billable
  • S80.261A Insect bite (nonvenomous), right knee, initial encounter
  • S80.261D Insect bite (nonvenomous), right knee, subsequent encounter
  • S80.261S Insect bite (nonvenomous), right knee, sequela
  • S80.262 Insect bite (nonvenomous), left kneeNon-billable
  • S80.262A Insect bite (nonvenomous), left knee, initial encounter
  • S80.262D Insect bite (nonvenomous), left knee, subsequent encounter
  • S80.262S Insect bite (nonvenomous), left knee, sequela
  • S80.269 Insect bite (nonvenomous), unspecified kneeNon-billable
  • S80.269A Insect bite (nonvenomous), unspecified knee, initial encounter
  • S80.269D Insect bite (nonvenomous), unspecified knee, subsequent encounter
  • S80.269S Insect bite (nonvenomous), unspecified knee, sequela
  • S80.27 Other superficial bite of kneeNon-billable
  • S80.271 Other superficial bite of right kneeNon-billable
  • S80.271A Other superficial bite of right knee, initial encounter
  • S80.271D Other superficial bite of right knee, subsequent encounter
  • S80.271S Other superficial bite of right knee, sequela
  • S80.272 Other superficial bite of left kneeNon-billable
  • S80.272A Other superficial bite of left knee, initial encounter
  • S80.272D Other superficial bite of left knee, subsequent encounter
  • S80.272S Other superficial bite of left knee, sequela
  • S80.279 Other superficial bite of unspecified kneeNon-billable
  • S80.279A Other superficial bite of unspecified knee, initial encounter
  • S80.279D Other superficial bite of unspecified knee, subsequent encounter
  • S80.279S Other superficial bite of unspecified knee, sequela
  • S80.8 Other superficial injuries of lower legNon-billable
  • S80.81 Abrasion of lower legNon-billable
  • S80.811 Abrasion, right lower legNon-billable
  • S80.811A Abrasion, right lower leg, initial encounter
  • S80.811D Abrasion, right lower leg, subsequent encounter
  • S80.811S Abrasion, right lower leg, sequela
  • S80.812 Abrasion, left lower legNon-billable
  • S80.812A Abrasion, left lower leg, initial encounter
  • S80.812D Abrasion, left lower leg, subsequent encounter
  • S80.812S Abrasion, left lower leg, sequela
  • S80.819 Abrasion, unspecified lower legNon-billable
  • S80.819A Abrasion, unspecified lower leg, initial encounter
  • S80.819D Abrasion, unspecified lower leg, subsequent encounter
  • S80.819S Abrasion, unspecified lower leg, sequela
  • S80.82 Blister (nonthermal) of lower legNon-billable
  • S80.821 Blister (nonthermal), right lower legNon-billable
  • S80.821A Blister (nonthermal), right lower leg, initial encounter
  • S80.821D Blister (nonthermal), right lower leg, subsequent encounter
  • S80.821S Blister (nonthermal), right lower leg, sequela
  • S80.822 Blister (nonthermal), left lower legNon-billable
  • S80.822A Blister (nonthermal), left lower leg, initial encounter
  • S80.822D Blister (nonthermal), left lower leg, subsequent encounter
  • S80.822S Blister (nonthermal), left lower leg, sequela
  • S80.829 Blister (nonthermal), unspecified lower legNon-billable
  • S80.829A Blister (nonthermal), unspecified lower leg, initial encounter
  • S80.829D Blister (nonthermal), unspecified lower leg, subsequent encounter
  • S80.829S Blister (nonthermal), unspecified lower leg, sequela
  • S80.84 External constriction of lower legNon-billable
  • S80.841 External constriction, right lower legNon-billable
  • S80.841A External constriction, right lower leg, initial encounter
  • S80.841D External constriction, right lower leg, subsequent encounter
  • S80.841S External constriction, right lower leg, sequela
  • S80.842 External constriction, left lower legNon-billable
  • S80.842A External constriction, left lower leg, initial encounter
  • S80.842D External constriction, left lower leg, subsequent encounter
  • S80.842S External constriction, left lower leg, sequela
  • S80.849 External constriction, unspecified lower legNon-billable
  • S80.849A External constriction, unspecified lower leg, initial encounter
  • S80.849D External constriction, unspecified lower leg, subsequent encounter
  • S80.849S External constriction, unspecified lower leg, sequela
  • S80.85 Superficial foreign body of lower legNon-billable
  • S80.851 Superficial foreign body, right lower legNon-billable
  • S80.851A Superficial foreign body, right lower leg, initial encounter
  • S80.851D Superficial foreign body, right lower leg, subsequent encounter
  • S80.851S Superficial foreign body, right lower leg, sequela
  • S80.852 Superficial foreign body, left lower legNon-billable
  • S80.852A Superficial foreign body, left lower leg, initial encounter
  • S80.852D Superficial foreign body, left lower leg, subsequent encounter
  • S80.852S Superficial foreign body, left lower leg, sequela
  • S80.859 Superficial foreign body, unspecified lower legNon-billable
  • S80.859A Superficial foreign body, unspecified lower leg, initial encounter
  • S80.859D Superficial foreign body, unspecified lower leg, subsequent encounter
  • S80.859S Superficial foreign body, unspecified lower leg, sequela
  • S80.86 Insect bite (nonvenomous) of lower legNon-billable
  • S80.861 Insect bite (nonvenomous), right lower legNon-billable
  • S80.861A Insect bite (nonvenomous), right lower leg, initial encounter
  • S80.861D Insect bite (nonvenomous), right lower leg, subsequent encounter
  • S80.861S Insect bite (nonvenomous), right lower leg, sequela
  • S80.862 Insect bite (nonvenomous), left lower legNon-billable
  • S80.862A Insect bite (nonvenomous), left lower leg, initial encounter
  • S80.862D Insect bite (nonvenomous), left lower leg, subsequent encounter
  • S80.862S Insect bite (nonvenomous), left lower leg, sequela
  • S80.869 Insect bite (nonvenomous), unspecified lower legNon-billable
  • S80.869A Insect bite (nonvenomous), unspecified lower leg, initial encounter
  • S80.869D Insect bite (nonvenomous), unspecified lower leg, subsequent encounter
  • S80.869S Insect bite (nonvenomous), unspecified lower leg, sequela
  • S80.87 Other superficial bite of lower legNon-billable
  • S80.871 Other superficial bite, right lower legNon-billable
  • S80.871A Other superficial bite, right lower leg, initial encounter
  • S80.871D Other superficial bite, right lower leg, subsequent encounter
  • S80.871S Other superficial bite, right lower leg, sequela
  • S80.872 Other superficial bite, left lower legNon-billable
  • S80.872A Other superficial bite, left lower leg, initial encounter
  • S80.872D Other superficial bite, left lower leg, subsequent encounter
  • S80.872S Other superficial bite, left lower leg, sequela
  • S80.879 Other superficial bite, unspecified lower legNon-billable
  • S80.879A Other superficial bite, unspecified lower leg, initial encounter
  • S80.879D Other superficial bite, unspecified lower leg, subsequent encounter
  • S80.879S Other superficial bite, unspecified lower leg, sequela
  • S80.9 Unspecified superficial injury of knee and lower legNon-billable
  • S80.91 Unspecified superficial injury of kneeNon-billable
  • S80.911 Unspecified superficial injury of right kneeNon-billable
  • S80.911A Unspecified superficial injury of right knee, initial encounter
  • S80.911D Unspecified superficial injury of right knee, subsequent encounter
  • S80.911S Unspecified superficial injury of right knee, sequela
  • S80.912 Unspecified superficial injury of left kneeNon-billable
  • S80.912A Unspecified superficial injury of left knee, initial encounter
  • S80.912D Unspecified superficial injury of left knee, subsequent encounter
  • S80.912S Unspecified superficial injury of left knee, sequela
  • S80.919 Unspecified superficial injury of unspecified kneeNon-billable
  • S80.919A Unspecified superficial injury of unspecified knee, initial encounter
  • S80.919D Unspecified superficial injury of unspecified knee, subsequent encounter
  • S80.919S Unspecified superficial injury of unspecified knee, sequela
  • S80.92 Unspecified superficial injury of lower legNon-billable
  • S80.921 Unspecified superficial injury of right lower legNon-billable
  • S80.921A Unspecified superficial injury of right lower leg, initial encounter
  • S80.921D Unspecified superficial injury of right lower leg, subsequent encounter
  • S80.921S Unspecified superficial injury of right lower leg, sequela
  • S80.922 Unspecified superficial injury of left lower legNon-billable
  • S80.922A Unspecified superficial injury of left lower leg, initial encounter
  • S80.922D Unspecified superficial injury of left lower leg, subsequent encounter
  • S80.922S Unspecified superficial injury of left lower leg, sequela
  • S80.929 Unspecified superficial injury of unspecified lower legNon-billable
  • S80.929A Unspecified superficial injury of unspecified lower leg, initial encounter
  • S80.929D Unspecified superficial injury of unspecified lower leg, subsequent encounter
  • S80.929S Unspecified superficial injury of unspecified lower leg, sequela

About the S80 Code Range

The ICD-10 code section S80 covers superficial injuries specifically affecting the knee and lower leg. This includes a variety of minor skin injuries such as contusions, abrasions, blisters, external constrictions, superficial foreign bodies, and insect bites. Each condition is further categorized by laterality (right, left, or unspecified) and encounter type (initial, subsequent, or sequela).

This group of codes helps medical professionals and coders accurately classify superficial trauma like bruises (contusions), scrapes (abrasions), or nonthermal blisters around the knee or lower leg. For example, common terms such as "contusion of knee," "hematoma of lower leg," and "abrasion of skin of right lower leg" correspond to specific codes like S80.01XA or S80.811A. The codes also distinguish insect bites and superficial foreign bodies like splinters or superficial embedded objects. Utilizing these codes ensures precise documentation for minor injuries localized to these leg regions, aiding in appropriate treatment tracking and reporting.

Questions About This Page

How many billable codes are in the S80 range?

Of the 212 codes in this range, 144 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 S80 range classify?

The range classifies superficial injury of knee and lower leg. 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.