Biliary Atresia

Biliary Atresia is indexed under Pediatric-Onset Chronic, Hepatobiliary. Also known as BA.

US prevalence

~1 in 8,000-18,000 live births; leading cause of pediatric liver transplant Source: NIDDK; AASLD. Cites federal and non-federal sources, and the record does not say which one gave this figure. Label: REPORTED.

ICD-10-CM codes

Q44.2

Typical onset

Neonatal; Kasai procedure in first weeks

Course

progressive

Body systems

hepatic

Sex differences

F:M ~1.4:1

Racial and ethnic differences

Higher in Asian and Black populations

What this page does not establish

These figures describe populations, not individuals, and none of them is a diagnosis or a treatment recommendation. Prevalence estimates are approximate and reflect published ranges. Disparity figures are reported patterns, not causes.

Taxonomy last reviewed 2026-05-19. Each figure on the interactive page carries its own source and retrieval date, which can be later than this review.

Browse all indexed conditions · Source registry · Methodology · Known limitations