Q42.9
Billable codeCongenital absence, atresia and stenosis of large intestine, part unspecified
The ICD-10 code for congenital absence, atresia and stenosis of large intestine, part unspecified is Q42.9.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This code describes an unspecified presentation. If the medical record documents a more specific detail (e.g. laterality, type, or affected site), a more specific sibling code should be used instead — see Related codes below.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- Q42.0Congenital absence, atresia and stenosis of rectum with fistula
- Q42.1Congenital absence, atresia and stenosis of rectum without fistula
- Q42.2Congenital absence, atresia and stenosis of anus with fistula
- Q42.3Congenital absence, atresia and stenosis of anus without fistula
- Q42.8Congenital absence, atresia and stenosis of other parts of large intestine
- Q42.9Congenital absence, atresia and stenosis of large intestine, part unspecified
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 7512Approximate match
Associated MS-DRGs
Q42.9 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.
- DRG 314Other Circulatory System Diagnoses with MCC
- DRG 315Other Circulatory System Diagnoses with CC
- DRG 316Other Circulatory System Diagnoses without CC/MCC
- DRG 393Other Digestive System Diagnoses with MCC
- DRG 394Other Digestive System Diagnoses with CC
- DRG 395Other Digestive System Diagnoses without CC/MCC