ICD-10-CM > K00-K95 > K55-K64 > K60 > K60.5 > K60.52 K60.52 Anorectal fistula, complex Non-Billable/Non-Specific Applicable To Extrasphincteric anorectal fistulaHigh intersphincteric anorectal fistulaSuprasphincteric anorectal fistulaTranssphincteric anorectal fistula Code Also , if applicable:perianal abscess (K61.0)rectovaginal fistula (N82.3)stenosis of anus and rectum (K62.4) Codes K60.521Anorectal fistula, complex, initialK60.522Anorectal fistula, complex, persistentK60.523Anorectal fistula, complex, recurrentK60.529Anorectal fistula, complex, unspecified