ICD-10-CM 2027
ICD-10 code for buttock wound
From the official ICD-10-CM alphabetic index entry “Wound, open › buttock”. Page updated September 29, 2026.
About coding buttock wound
The ICD-10-CM code for buttock wound is S31.809 (Unspecified open wound of unspecified buttock). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on S31.809.
Within S31.80, choose S31.809 (Unspecified open wound of unspecified buttock) only when documentation doesn't support a more specific option: laceration without foreign body of unspecified buttock (S31.801), laceration with foreign body of unspecified buttock (S31.802), puncture wound without foreign body of unspecified buttock (S31.803), puncture wound with foreign body of unspecified buttock (S31.804) and open bite of unspecified buttock (S31.805).
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 buttock wound codes (official index)
Common questions about buttock wound ICD-10 codes
What is the ICD-10 code for buttock wound?
- S31.809 — Unspecified open wound of unspecified buttock (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: S31.829, S31.819.
What is the ICD-10 code for left buttock wound?
- S31.829 — Unspecified open wound of left buttock (header code; choose a more specific subcode).
What is the ICD-10 code for right buttock wound?
- S31.819 — Unspecified open wound of right buttock (header code; choose a more specific subcode).
Is S31.809 billable?
- No. S31.809 is a header code. Report one of its more specific subcodes instead.