Emergency: 119
AMDA-IMIC

Q42 Congenital absence, atresia and stenosis of large intestine

Category / Non-billable header 6 subcodes

Block: Other congenital malformations of the digestive system (Q38-Q45)

Includes

  • congenital obstruction, occlusion and stricture of large intestine

Subcodes

Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.

Code Description Billable
Q42..0 Congenital absence, atresia and stenosis of rectum with fistula Yes
Q42..1 Congenital absence, atresia and stenosis of rectum without fistula Yes
Q42..2 Congenital absence, atresia and stenosis of anus with fistula Yes
Q42..3 Congenital absence, atresia and stenosis of anus without fistula Yes
Q42..8 Congenital absence, atresia and stenosis of other parts of large intestine Yes
Q42..9 Congenital absence, atresia and stenosis of large intestine, part unspecified Yes

Last reviewed: September 2026