ICD-10 B94.9
Billable / SpecificSequelae of unspecified infectious and parasitic disease
About ICD-10-CM B94.9
ICD-10-CM code B94.9 represents Sequelae of unspecified infectious and parasitic disease. This is a billable/specific code in the Infectious and Parasitic Diseases chapter (block B94). The 2026 edition of ICD-10-CM B94.9 became effective on October 1, 2025.
Type 2 Excludes
Not included here, the excluded code is not part of B94.9, but a patient may have both conditions at the same time. Both codes may be coded together when applicable.
- post COVID-19 condition (U09.9)
Medicare LCD Coverage for B94.9
Local Coverage Determinations (LCDs) from CMS MACs that list B94.9 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 B94.9.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but B94.9 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with B94.9
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 B94.9 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 |
|---|---|---|
| B94.9 | 1398 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To B94.9
Other codes in section B90-B94 (Sequelae of infectious and parasitic diseases).
ICD-10 B94.9, Billing FAQ
Is ICD-10 code B94.9 billable? +
Yes, B94.9 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What codes are Type 2 Excludes for B94.9? +
Type 2 Excludes (may be coded together when both conditions exist): post COVID-19 condition (U09.9)
What ICD-9 codes does B94.9 map to? +
Per CMS GEMs, B94.9 maps to ICD-9 codes: 1398. 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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