Q42.9 is the authoritative medical code for Congenital absence, atresia and stenosis of large intestine, part unspecified. This classification is used in medical billing and clinical recording to specify the clinical criteria for congenital absence, atresia and stenosis of large intestine, part unspecified (ICD-10-CM Q42.9), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Congenital absence, atresia and stenosis of large intestine, part unspecified is a billable ICD-10-CM diagnosis code Q42.9. Includes: congenital obstruction, occlusion and stricture of large intestine.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for Q42.9 in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- congenital obstruction, occlusion and stricture of large intestine
Codes in This Family (6)
Official ICD-10-CM classifications in the same code family as Q42.9, with their registry titles.
- Q42 — Congenital absence, atresia and stenosis of large intestine
- Q42.0 — Congenital absence, atresia and stenosis of rectum with fistula
- Q42.1 — Congenital absence, atresia and stenosis of rectum without fistula
- Q42.2 — Congenital absence, atresia and stenosis of anus with fistula
- Q42.3 — Congenital absence, atresia and stenosis of anus without fistula
- Q42.8 — Congenital absence, atresia and stenosis of other parts of large intestine
Indexed Clinical Terms (13)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Absence (of) (organ or part) (complete or partial), intestine (acquired) (small), large, congenital
- Agenesis, colon
- Agenesis, intestine (small), large
- Atresia, atretic, colon
- Atresia, atretic, intestine (small), large
- Hypoplasia, hypoplastic, colon
- Hypoplasia, hypoplastic, intestine (small), large
- Impervious (congenital), intestine (small), large
- Obstruction, obstructed, obstructive, intestine, congenital (small), large
- Stenosis, stenotic (cicatricial), colon, congenital
- Stenosis, stenotic (cicatricial), intestine, congenital (small), large
- Stricture, colon, congenital
- Stricture, intestine, congenital (small), large
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code Q40.9
Congenital malformation of upper alimentary tract, unspecified
ICD Code Q41.9
Congenital absence, atresia and stenosis of small intestine, part unspecified
ICD Code Q45.9
Congenital malformation of digestive system, unspecified