K63.2

ICD-10Billable

Fistula of intestine

Official ICD-10-CM descriptor (FY2026)

Fistula of intestine

K63.2 is valid for submission on a claim — CMS flags it as a billable, specific code.

Excludes1

Not coded here. An Excludes1 code should never be reported at the same time as the code above it.

  • fistula of duodenum (K31.6)
  • fistula of intestine with Crohn's disease (K50.013, K50.113, K50.813, K50.913,)
  • fistula of intestine with ulcerative colitis (K51.013, K51.213, K51.313, K51.413, K51.513, K51.813, K51.913)

Excludes2

Not included here. The condition is not part of this code, but a patient may have both, and both codes may be reported together.

  • fistula of anal and rectal regions (K60.-)
  • fistula of appendix (K38.3)
  • intestinal-genital fistula, female (N82.2-N82.4)
  • vesicointestinal fistula (N32.1)

Code also

Two codes may be needed; sequencing depends on the reason for the encounter.

  • , if applicable, disruption of internal operation (surgical) wound (T81.32-)

Related codes in K63

Where this code sits

Parent code
K63

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.

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