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ICD-10-CM 2027

ICD-10 code for knee blister

S80.22

Blister (nonthermal) of knee

Header — needs a more specific code

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

About coding knee blister

The ICD-10-CM code for knee blister is S80.22 (Blister (nonthermal) of knee).

Within S80.2 (other superficial injuries of knee), S80.22 is specifically for Blister (nonthermal) of knee. Related codes cover abrasion of knee (S80.21), 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 blister ICD-10 codes

What is the ICD-10 code for knee blister?

S80.22 — Blister (nonthermal) of knee (a header code; report a more specific subcode).

Is S80.22 billable?

No. S80.22 is a header code. Report one of its more specific subcodes instead.