Q43.6
ICD-10BillableCongenital fistula of rectum and anus
Official ICD-10-CM descriptor (FY2026)
Congenital fistula of rectum and anus
Q43.6 is valid for submission on a claim — CMS flags it as a billable, specific code.
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- 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.-)
Related codes in Q43
- Q43.0Meckel's diverticulum (displaced) (hypertrophic)
- Q43.1Hirschsprung's disease
- Q43.2Other congenital functional disorders of colon
- Q43.3Congenital malformations of intestinal fixation
- Q43.4Duplication of intestine
- Q43.5Ectopic anus
- Q43.7Persistent cloaca
- Q43.8Other specified congenital malformations of intestine
- Q43.9Congenital malformation of intestine, unspecified
Where this code sits
- Parent code
- Q43
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.