K60.5 Anorectal fistula

Not billable (header)Chapter 11

Report one of the more specific codes below.

Check coverage with this diagnosis

Codes under this one

K60.50 Anorectal fistula, unspecified
K60.51 Anorectal fistula, simpleHeader
K60.52 Anorectal fistula, complexHeader

Instructional notes

Chapter 11

Excludes2Not included here: the patient may have both; report both when both are present.

certain conditions originating in the perinatal period (P04-P96)
certain infectious and parasitic diseases (A00-B99)
complications of pregnancy, childbirth and the puerperium (O00-O9A)
congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
endocrine, nutritional and metabolic diseases (E00-E88)
injury, poisoning and certain other consequences of external causes (S00-T88)
neoplasms (C00-D49)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

K60

Excludes2Not included here: the patient may have both; report both when both are present.

abscess or cellulitis of anal and rectal regions (K61.-)
anal sphincter tear (healed) (nontraumatic) (old) (K62.81)

This code

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.

congenital fistula (Q43.6)

Code firstSequence the underlying condition first.

, if applicable:
Crohn's disease (K50.-)
ulcerative colitis (K51.-)

Chapter 11: Diseases of the digestive system · K55-K64 Other diseases of intestines (K55-K64)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.