ICD-10 Q34.9
Billable / SpecificCongenital malformation of respiratory system, unspecified
About ICD-10-CM Q34.9
ICD-10-CM code Q34.9 represents Congenital malformation of respiratory system, unspecified. This is a billable/specific code in the Congenital Malformations chapter (block Q34). The 2026 edition of ICD-10-CM Q34.9 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under Q34.9. Per CMS ICD-10-CM Tabular 2026.
- Congenital absence of respiratory system
- Congenital anomaly of respiratory system NOS
Medicare LCD Coverage for Q34.9
Local Coverage Determinations (LCDs) from CMS MACs that list Q34.9 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing Q34.9.
1 Aetna
1 Cigna
CPT Codes Commonly Billed with Q34.9
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 Q34.9 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 |
|---|---|---|
| Q34.9 | 7489 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To Q34.9
Other codes in section Q30-Q34 (Congenital malformations of the respiratory system).
ICD-10 Q34.9, Billing FAQ
Is ICD-10 code Q34.9 billable? +
Yes, Q34.9 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 Q34.9? +
ICD-10 Q34.9 includes: Congenital absence of respiratory system; Congenital anomaly of respiratory system NOS.
What ICD-9 codes does Q34.9 map to? +
Per CMS GEMs, Q34.9 maps to ICD-9 codes: 7489. 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 June 2, 2026.
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