Q42.9
Congenital absence, atresia and stenosis of large intestine, part unspecified
Billable FY2026 2025-10-01 → 2026-09-30
This is the unspecified option. 5 more
specific codes sit alongside it. Worth
checking whether the documentation supports one of them.
Instructional notes 1
Q42code
Includes
- congenital obstruction, occlusion and stricture of large intestine
Index entries leading here 8
- Absence (of) (organ or part) (complete or partial)
- Agenesis
- Atresia, atretic
- Hypoplasia, hypoplastic
- Stenosis, stenotic (cicatricial) — see also Stricture
- Stricture — see also Stenosis
- Obstruction, obstructed, obstructive
- Impervious (congenital) — see also Atresia
Alongside this code 5 same parent — Q42
Q42.0 Congenital absence, atresia and stenosis of rectum w fistula Q42.1 Congen absence, atresia and stenosis of rectum w/o fistula Q42.2 Congenital absence, atresia and stenosis of anus w fistula Q42.3 Congenital absence, atresia and stenosis of anus w/o fistula Q42.8 Congenital absence, atresia and stenosis of prt lg int
Medications 1
MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.