ICD-10 A48.2
Billable / SpecificNonpneumonic Legionnaires' disease [Pontiac fever]
About ICD-10-CM A48.2
ICD-10-CM code A48.2 represents Nonpneumonic Legionnaires' disease [Pontiac fever]. This is a billable/specific code in the Infectious and Parasitic Diseases chapter (block A48). The 2026 edition of ICD-10-CM A48.2 became effective on October 1, 2025.
Medicare LCD Coverage for A48.2
Local Coverage Determinations (LCDs) from CMS MACs that list A48.2 as a covered diagnosis.
Showing top 10 of 537 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing A48.2.
4 Medicare
CPT Codes Commonly Billed with A48.2
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 A48.2 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 |
|---|---|---|
| A48.2 | 04089 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To A48.2
Other codes in section A30-A49 (Other bacterial diseases).
ICD-10 A48.2, Billing FAQ
Is ICD-10 code A48.2 billable? +
Yes, A48.2 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What ICD-9 codes does A48.2 map to? +
Per CMS GEMs, A48.2 maps to ICD-9 codes: 04089. 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 1, 2026.
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