Q42.8 Congenital absence, atresia and stenosis of other parts of large intestine

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis. Exempt from present-on-admission (POA) reporting.

Applies from Q42 Congenital absence, atresia and stenosis of large intestine

Includes

• congenital obstruction, occlusion and stricture of large intestine

Risk adjustment (HCC)

• CMS-HCC V28: HCC 78 — Intestinal Obstruction/Perforation

MS-DRG index

Defines the logic of DRG(s) 393-395 in MDC 06.

Approximate ICD-9-CM (GEMs)

• 751.2 Atresia and stenosis of large intestine, rectum, and anal canal (approximate)

Code annotations containing back-references to Q42.8

Back-references to Q42

• Type 1 Excludes: K56 Paralytic ileus and intestinal obstruction without hernia ("congenital stricture or stenosis of intestine (Q41-Q42)")

Diagnosis Index entries for Q42.8

• Absence (of) (organ or part) (complete or partial) › appendix, congenital
• Absence (of) (organ or part) (complete or partial) › intestine (acquired) (small) › large › congenital › specified NEC
• Agenesis › appendix
• Agenesis › cecum
• Agenesis › colon › specified NEC
• Agenesis › intestine (small) › large › specified NEC
• Atresia, atretic › cecum
• Atresia, atretic › colon › specified NEC
• Atresia, atretic › intestine (small) › large › specified NEC
• Hypoplasia, hypoplastic › cecum
• Hypoplasia, hypoplastic › colon › specified NEC
• Hypoplasia, hypoplastic › intestine (small) › large › specified NEC
• Impervious (congenital) › intestine (small) › large › specified NEC
• Obstruction, obstructed, obstructive › intestine › congenital (small) › large › specified part NEC
• Stenosis, stenotic (cicatricial) › colon › congenital › specified NEC
• Stenosis, stenotic (cicatricial) › intestine › congenital (small) › large › specified NEC
• Stricture › colon › congenital › specified NEC
• Stricture › intestine › congenital (small) › large › specified NEC

Nearby codes

• 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 (this code)
• Q42.9 Congenital absence, atresia and stenosis of large intestine, part unspecified