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Q43.6

Billable

Congenital fistula of rectum and anus

Q43.6 is the ICD-10-CM code for Congenital fistula of rectum and anus. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
Q00-Q99
Parent
Q43
Edition
FY2026

Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities

What this means — in plain language

MedlinePlus · NIH

What is the anus? Your anus is the opening at the end of your large intestine. It is where stool (poop) leaves your body. What are anal disorders? Problems with the anus are common. They include: Hemorrhoids Abscesses Fissures, small cracks or tears in the lining of your anus Anorectal fistula, an abnormal tunnel from your anus or rectum to the skin surface Anal itching (pruritus ani) Cancer What are the symptoms of…

Read more about Anal Disorders at MedlinePlus ↗
Fistulas ↗Rectal Disorders ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Excludes1 — not coded here

  • •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.-)

Frequently asked questions

What is ICD-10 code Q43.6?
Q43.6 is the ICD-10-CM code for "Congenital fistula of rectum and anus". It falls under Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities.
Is Q43.6 a billable code?
Yes — Q43.6 is a billable, specific ICD-10-CM code valid for reimbursement.
What is excluded from Q43.6?
Excludes1 (not coded here): 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).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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