All ICD10 Codes
Q42Non-billable

Congenital absence, atresia and stenosis of large intestine

Congenital Malformations, Deformations and Chromosomal Abnormalities·Other congenital malformations of the digestive system (Q38-Q45)·category·FY 2026

Use a more specific code (6 billable)
Q42.0Congenital absence, atresia and stenosis of rectum with fistulaQ42.1Congenital absence, atresia and stenosis of rectum without fistulaQ42.2Congenital absence, atresia and stenosis of anus with fistulaQ42.3Congenital absence, atresia and stenosis of anus without fistulaQ42.8Congenital absence, atresia and stenosis of other parts of large intestineQ42.9Congenital absence, atresia and stenosis of large intestine, part unspecified

CH17 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • inborn errors of metabolism (E70-E88)

Instructional Notes

Includes
  • congenital obstruction, occlusion and stricture of large intestine

Clinical Hierarchy

BillableHas subcodes
CH17Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0)
Q38-Q45Other congenital malformations of the digestive system (Q38-Q45)
Q42Congenital absence, atresia and stenosis of large intestineNot billable
Q42.0Congenital absence, atresia and stenosis of rectum with fistulaBillable
Q42.1Congenital absence, atresia and stenosis of rectum without fistulaBillable
Q42.2Congenital absence, atresia and stenosis of anus with fistulaBillable
Q42.3Congenital absence, atresia and stenosis of anus without fistulaBillable
Q42.8Congenital absence, atresia and stenosis of other parts of large intestineBillable
Q42.9Congenital absence, atresia and stenosis of large intestine, part unspecifiedBillable

MS-DRG Classification

2026

No direct MS-DRG triggers identified.