ICD-10-CM 2027
ICD-10 code for abdomen wall fistula
From the official ICD-10-CM alphabetic index entry “Fistula (cutaneous) › abdomen (wall)”. Page updated September 29, 2026.
About coding abdomen wall fistula
The ICD-10-CM code for abdomen wall fistula is K63.2 (Fistula of intestine). The official index lists 4 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on K63.2.
Within K63 (other diseases of intestine), K63.2 is specifically for fistula of intestine. Related codes cover abscess of intestine (K63.0), perforation of intestine (nontraumatic) (K63.1), ulcer of intestine (K63.3), Enteroptosis (K63.4), polyp of colon (K63.5), other specified diseases of intestine (K63.8) and disease of intestine, unspecified (K63.9).
Don't report K63.2 together with the conditions in its Excludes1 note: fistula of duodenum (K31.6), fistula of intestine with Crohn's disease (K50.013, K50.113, K50.813, K50.913,) and fistula of intestine with ulcerative colitis (K51.013, K51.213, K51.313, K51.413, K51.513, K51.813, K51.913).
The conditions in its Excludes2 note aren't part of K63.2, but may be coded alongside it if the patient has both: fistula of anal and rectal regions (K60.-), fistula of appendix (K38.3), intestinal-genital fistula, female (N82.2-N82.4) and vesicointestinal fistula (N32.1).
More specific abdomen wall fistula codes (official index)
Don't confuse with (Excludes1 for K63.2)
Common questions about abdomen wall fistula ICD-10 codes
What is the ICD-10 code for abdomen wall fistula?
- K63.2 — Fistula of intestine. More specific codes apply when the documentation supports them: N32.2, K63.2, N28.89, N82.5.
What is the ICD-10 code for bladder abdomen wall fistula?
- N32.2 — Vesical fistula, not elsewhere classified.
What is the ICD-10 code for intestine nec abdomen wall fistula?
- K63.2 — Fistula of intestine.
What is the ICD-10 code for ureter abdomen wall fistula?
- N28.89 — Other specified disorders of kidney and ureter.
What is the ICD-10 code for uterus abdomen wall fistula?
- N82.5 — Female genital tract-skin fistulae.
Is K63.2 billable?
- Yes. K63.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can K63.2 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict K63.2 as a principal diagnosis.
Is K63.2 a CC or MCC?
- K63.2 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.