ICD-10 A23.0
Billable / SpecificBrucellosis due to Brucella melitensis
About ICD-10-CM A23.0
ICD-10-CM code A23.0 represents Brucellosis due to Brucella melitensis. This is a billable/specific code in the Infectious and Parasitic Diseases chapter (block A23). The 2026 edition of ICD-10-CM A23.0 became effective on October 1, 2025.
Medicare LCD Coverage for A23.0
Local Coverage Determinations (LCDs) from CMS MACs that list A23.0 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 A23.0.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but A23.0 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with A23.0
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 A23.0 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 |
|---|---|---|
| A23.0 | 0230 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To A23.0
Other codes in section A20-A28 (Certain zoonotic bacterial diseases).
ICD-10 A23.0, Billing FAQ
Is ICD-10 code A23.0 billable? +
Yes, A23.0 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What ICD-9 codes does A23.0 map to? +
Per CMS GEMs, A23.0 maps to ICD-9 codes: 0230. 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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