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ICD-10-CM 2027

ICD-10 code for knee abrasion

S80.21

Abrasion of knee

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Abrasion › knee”. Page updated September 29, 2026.

About coding knee abrasion

The ICD-10-CM code for knee abrasion is S80.21 (Abrasion of knee).

Within S80.2 (other superficial injuries of knee), S80.21 is specifically for abrasion of knee. Related codes cover Blister (nonthermal) of knee (S80.22), external constriction of knee (S80.24), superficial foreign body of knee (S80.25), insect bite (nonvenomous) of knee (S80.26) and other superficial bite of knee (S80.27).

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

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

Common questions about knee abrasion ICD-10 codes

What is the ICD-10 code for knee abrasion?

S80.21 — Abrasion of knee (a header code; report a more specific subcode).

Is S80.21 billable?

No. S80.21 is a header code. Report one of its more specific subcodes instead.