ICD-10-CM > K00-K95 > K55-K64 > K60 > K60.3 > K60.32 K60.32 Anal fistula, complex Non-Billable/Non-Specific Applicable To Extrasphincteric anal fistulaHigh intersphincteric anal fistulaSuprasphincteric anal fistulaTranssphincteric anal fistula Code Also , if applicable:perianal abscess (K61.0)rectovaginal fistula (N82.3)stenosis of anus and rectum (K62.4) Codes K60.321Anal fistula, complex, initialK60.322Anal fistula, complex, persistentK60.323Anal fistula, complex, recurrentK60.329Anal fistula, complex, unspecified