ICD-10 B34.9
Billable / SpecificViral infection, unspecified
About ICD-10-CM B34.9
ICD-10-CM code B34.9 represents Viral infection, unspecified. This is a billable/specific code in the Infectious and Parasitic Diseases chapter (block B34). The 2026 edition of ICD-10-CM B34.9 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under B34.9. Per CMS ICD-10-CM Tabular 2026.
- Viremia NOS
Medicare LCD Coverage for B34.9
Local Coverage Determinations (LCDs) from CMS MACs that list B34.9 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 B34.9.
1 Aetna
CPT Codes Commonly Billed with B34.9
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 99212 Established patient — URI, UTI, pharyngitis, otitis, dermatitis, rash, viral infection, cellulitis, conjunctivitis, sinusitis, bronchitis, ankle sprain Primary Care
Convert B34.9 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 |
|---|---|---|
| B34.9 | 7908 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To B34.9
Other codes in section B25-B34 (Other viral diseases).
ICD-10 B34.9, Billing FAQ
Is ICD-10 code B34.9 billable? +
Yes, B34.9 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 B34.9? +
ICD-10 B34.9 includes: Viremia NOS.
What CPT codes are commonly billed with B34.9? +
Procedures frequently paired with B34.9 include: 99212.
What ICD-9 codes does B34.9 map to? +
Per CMS GEMs, B34.9 maps to ICD-9 codes: 7908. 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 July 16, 2026.
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