Q42.3 – Congenital absence, atresia and stenosis of anus without fistula
ICD-10-CM 2027 diagnosis code · Other congenital malformations of the digestive system
- Code
Q42.3(claims format:Q423)- Description
- Congenital absence, atresia and stenosis of anus without fistula
- Short description
- Congenital absence, atresia and stenosis of anus w/o fistula
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 17. Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)
- Block
- Q38-Q45 Other congenital malformations of the digestive system
- Parent codes
- Q42
Notes for Q42.3
- Imperforate anus
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Q42 – Congenital absence, atresia and stenosis of large intestine
- congenital obstruction, occlusion and stricture of large intestine
Index terms for Q42.3
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Absence, anus
- Impervious, anus
- Imperforate, anus
- Agenesis, anus, anal
- Septum, septate, anal
- Stricture, anus, infantile
- Stricture, anus, congenital
- Atresia, atretic, ani, anus, anal
- Hypoplasia, hypoplastic, anus, anal
- Occlusion, occluded, anus, congenital
- Persistence, persistent, anal membrane
- Stenosis, stenotic, anus, anal, congenital
Related codes in Q42
- Q42.0 – Congenital absence, atresia and stenosis of rectum with fistulaBillable
- Q42.1 – Congenital absence, atresia and stenosis of rectum without fistulaBillable
- Q42.2 – Congenital absence, atresia and stenosis of anus with fistulaBillable
- Q42.8 – Congenital absence, atresia and stenosis of other parts of large intestineBillable
- Q42.9 – Congenital absence, atresia and stenosis of large intestine, part unspecifiedBillable
Frequently asked questions
What is ICD-10 code Q42.3?
Q42.3 is the ICD-10-CM code for congenital absence, atresia and stenosis of anus without fistula, in the block Q38-Q45 (Other congenital malformations of the digestive system).
Is Q42.3 a billable code?
Yes. Q42.3 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does Q42.3 belong to?
It belongs to category Q42 – Congenital absence, atresia and stenosis of large intestine.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.