ICD-10-CM 2027
ICD-10 code for anus sphincter laceration
From the official ICD-10-CM alphabetic index entry “Laceration › anus (sphincter)”. Page updated September 29, 2026.
About coding anus sphincter laceration
The ICD-10-CM code for anus sphincter laceration is S31.831 (Laceration without foreign body of anus). The official index lists 3 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on S31.831.
Within S31.83, choose S31.831 (Laceration without foreign body of anus) only when documentation doesn't support a more specific option: 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), open bite of anus (S31.835) and unspecified open wound of anus (S31.839).
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 sphincter laceration codes (official index)
- with
- ectopic or molar pregnancy O08.6 — Damage to pelvic organs and tissues following an ectopic and molar pregnancy
- foreign body S31.832 — Laceration with foreign body of anus
- complicating delivery
- following ectopic or molar pregnancy O08.6 — Damage to pelvic organs and tissues following an ectopic and molar pregnancy
- nontraumatic, nonpuerperal
Common questions about anus sphincter laceration ICD-10 codes
What is the ICD-10 code for anus sphincter laceration?
- S31.831 — Laceration without foreign body of anus (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: O08.6, S31.832, O08.6.
Is S31.831 billable?
- No. S31.831 is a header code. Report one of its more specific subcodes instead.