ICD-10-CM 2027
ICD-10 code for anus wound
From the official ICD-10-CM alphabetic index entry “Wound, open › anus”. Page updated September 29, 2026.
About coding anus wound
The ICD-10-CM code for anus wound is S31.839 (Unspecified open wound of anus). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on S31.839.
Within S31.83, choose S31.839 (Unspecified open wound of anus) only when documentation doesn't support a more specific option: laceration without foreign body of anus (S31.831), laceration with foreign body of anus (S31.832), puncture wound without foreign body of anus (S31.833), puncture wound with foreign body of anus (S31.834) and open bite of anus (S31.835).
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 anus wound codes (official index)
- bite S31.835 — Open bite of anus
- laceration
- puncture
Common questions about anus wound ICD-10 codes
What is the ICD-10 code for anus wound?
- S31.839 — Unspecified open wound of anus (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: S31.835.
What is the ICD-10 code for bite anus wound?
- S31.835 — Open bite of anus (header code; choose a more specific subcode).
Is S31.839 billable?
- No. S31.839 is a header code. Report one of its more specific subcodes instead.