ICD-10 Q39.1
Billable / Specific MCCAtresia of esophagus with tracheo-esophageal fistula
About ICD-10-CM Q39.1
ICD-10-CM code Q39.1 represents Atresia of esophagus with tracheo-esophageal fistula. This is a billable/specific code in the Congenital Malformations chapter (block Q39). The 2026 edition of ICD-10-CM Q39.1 became effective on October 1, 2025.
Coding Tips for Q39.1
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
Q39.1 is designated MCC for MS-DRG grouping. On inpatient claims, this code can shift the DRG to the with-MCC variant when documented as a present-on-admission secondary diagnosis. Hospital CDI programs flag MCC opportunities during chart review. Failure to capture this code may leave 30 to 80 percent of the inpatient stay revenue unrealized.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under Q39.1. Per CMS ICD-10-CM Tabular 2026.
- Atresia of esophagus with broncho-esophageal fistula
Inpatient DRG Impact, MCC
codes Atresia of esophagus with tracheo-esophageal fistula. As a Major Complication/Comorbidity (MCC), this can shift the DRG assignment to a higher-weighted category, substantial reimbursement impact.
Medicare LCD Coverage for Q39.1
Local Coverage Determinations (LCDs) from CMS MACs that list Q39.1 as a covered diagnosis.
Showing top 10 of 158 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing Q39.1.
4 Medicare
CPT Codes Commonly Billed with Q39.1
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Convert Q39.1 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| Q39.1 | 7503 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To Q39.1
Other codes in section Q38-Q45 (Other congenital malformations of the digestive system).
ICD-10 Q39.1, Billing FAQ
Is ICD-10 code Q39.1 billable? +
Yes, Q39.1 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to Q39.1? +
ICD-10 Q39.1 includes: Atresia of esophagus with broncho-esophageal fistula.
Is Q39.1 a CC or MCC for inpatient DRG? +
Yes, this code is designated as MCC. Documenting as a secondary diagnosis on inpatient claims can shift the DRG to a higher-weighted category.
What ICD-9 codes does Q39.1 map to? +
Per CMS GEMs, Q39.1 maps to ICD-9 codes: 7503. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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