ICD-10-CM 2027 diagnosis code

S80Superficial injury of knee and lower leg

Not billable — use a more specific code

S80 is a header code, so it can't be reported by itself. Choose one of the 5 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About S80

S80 is the ICD-10-CM diagnosis code for superficial injury of knee and lower leg. It belongs to block S80-S89 (injuries to the knee and lower leg) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 5 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: S80.0 (knee), S80.1 (leg), S80.2 (knee), S80.8 (leg) and S80.9 (leg).

The conditions in its Excludes2 note aren't part of S80, but may be coded alongside it if the patient has both: superficial injury of ankle and foot (S90.-).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under S80

Coding notes

Excludes2Not included here — may be reported together if both conditions exist

superficial injury of ankle and foot (S90.-)

Notes that apply from higher levels

Instructions written at a parent level also apply to S80.

Broader instructions also apply from S80-S89 Injuries to the knee and lower leg and Chapter 19: Injury, poisoning and certain other consequences of external causes.

Codes whose notes reference S80

M23Excludes2

Code history

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about S80

Is S80 billable?: No. S80 is a header code. Report one of its more specific subcodes instead.