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ICD-10-CM 2027

ICD-10 code for ankle wound

S91.00

Unspecified open wound of ankle

Header — needs a more specific code

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

About coding ankle wound

The ICD-10-CM code for ankle wound is S91.00 (Unspecified open wound of ankle).

Within S91.0, choose S91.00 (Unspecified open wound of ankle) only when documentation doesn't support a more specific option: laceration without foreign body of ankle (S91.01), laceration with foreign body of ankle (S91.02), puncture wound without foreign body of ankle (S91.03), puncture wound with foreign body of ankle (S91.04) and open bite of ankle (S91.05).

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.

More specific ankle wound codes (official index)

  • bite
  • laceration
  • puncture

Common questions about ankle wound ICD-10 codes

What is the ICD-10 code for ankle wound?

S91.00 — Unspecified open wound of ankle (a header code; report a more specific subcode).

Is S91.00 billable?

No. S91.00 is a header code. Report one of its more specific subcodes instead.