Q42 Congenital absence, atresia and stenosis of large intestine
ICD-10-CM category Q42 sits in Chapter 17 (Congenital malformations, deformations and chromosomal abnormalities, Q00-Q99). It contains 6 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.
Billable codes in Q42
| Code | Description |
|---|---|
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 |
Q42.9 | Congenital absence, atresia and stenosis of large intestine, part unspecified |
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