Q42 ICD-10-CM Code: Congenital absence, atresia and stenosis of large intestine
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
Q42Congenital absence, atresia and stenosis of large intestine
ICD-10-CM diagnosis code · United States clinical modification
Where Q42 sits
- 1
Chapter 17
Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)
- 2
Section
Other congenital malformations of the digestive system (Q38-Q45)
- 3
Category Q42
Congenital absence, atresia and stenosis of large intestine
- 4
Code Q42
Congenital absence, atresia and stenosis of large intestine
Codes under Q42
Q42 is a non-billable category. Choose the child code that best matches the documented diagnosis.
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 unspecifiedNotes for this code
Inclusion terms
No inclusion terms are listed for Q42.
Code first
No “code first” instruction is listed for Q42.
Use additional code
No “use additional code” instruction is listed for Q42.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for Q42.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for Q42.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code Q42 mean?
Q42 is the FY 2027 U.S. ICD-10-CM code for “Congenital absence, atresia and stenosis of large intestine.”
Is Q42 a billable or specific ICD-10-CM code?
No. Q42 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is Q42 located in ICD-10-CM?
Q42 is listed in Chapter 17, Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1), within Other congenital malformations of the digestive system (Q38-Q45) (Q38–Q45), under category Q42, Congenital absence, atresia and stenosis of large intestine.
What coding notes are listed for Q42?
No inclusion terms are listed for Q42 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.