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Q43.6

Billable

Congenital fistula of rectum and anus

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

A birth defect where an abnormal tunnel or opening connects the rectum or anus to the skin or other structures, allowing drainage or infection.

Coding Tips

  • Specify whether the fistula is rectoperineal, rectourethral, rectovaginal, or other type if documented
  • This often requires surgical repair and may be associated with other anorectal malformations

Excludes 1 — Do NOT code together

  • congenital fistula of anus with absence, atresia and stenosis (Q42.2)
  • congenital fistula of rectum with absence, atresia and stenosis (Q42.0)
  • congenital rectovaginal fistula (Q52.2)
  • congenital urethrorectal fistula (Q64.73)
  • pilonidal fistula or sinus (L05.-)

Code Hierarchy

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