ICD-10 B39.9
Billable / SpecificHistoplasmosis, unspecified
About ICD-10-CM B39.9
ICD-10-CM code B39.9 represents Histoplasmosis, unspecified. This is a billable/specific code in the Infectious and Parasitic Diseases chapter (block B39). The 2026 edition of ICD-10-CM B39.9 became effective on October 1, 2025.
Medicare LCD Coverage for B39.9
Local Coverage Determinations (LCDs) from CMS MACs that list B39.9 as a covered diagnosis.
Showing top 10 of 70 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing B39.9.
5 Medicare
2 Aetna
CPT Codes Commonly Billed with B39.9
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- J7999 CMS LCD: Billing and Coding: Intraocular Bevacizumab CMS LCD
- C9257 CMS LCD: Billing and Coding: Intraocular Bevacizumab CMS LCD
- 92134 CMS LCD: Billing and Coding: Intraocular Bevacizumab CMS LCD
- 92242 CMS LCD: Billing and Coding: Ophthalmic Angiography (Fluorescein and Indocyanine Green) CMS LCD
- 92228 CMS LCD: Billing and Coding: Ophthalmology: Posterior Segment Imaging (Extended Ophthalmoscopy and Fundus Photography) CMS LCD
- 92201 CMS LCD: Billing and Coding: Ophthalmology: Posterior Segment Imaging (Extended Ophthalmoscopy and Fundus Photography) CMS LCD
- 92202 CMS LCD: Billing and Coding: Ophthalmology: Posterior Segment Imaging (Extended Ophthalmoscopy and Fundus Photography) CMS LCD
- 92250 CMS LCD: Billing and Coding: Ophthalmology: Posterior Segment Imaging (Extended Ophthalmoscopy and Fundus Photography) CMS LCD
- 92227 CMS LCD: Billing and Coding: Ophthalmology: Posterior Segment Imaging (Extended Ophthalmoscopy and Fundus Photography) CMS LCD
- 92137 CMS LCD: Billing and Coding: Scanning Computerized Ophthalmic Diagnostic Imaging (SCODI) CMS LCD
Convert B39.9 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 |
|---|---|---|
| B39.9 | 11590 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To B39.9
Other codes in section B35-B49 (Mycoses).
ICD-10 B39.9, Billing FAQ
Is ICD-10 code B39.9 billable? +
Yes, B39.9 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What CPT codes are commonly billed with B39.9? +
Procedures frequently paired with B39.9 include: J7999, C9257, 92134, 92242, 92228.
What ICD-9 codes does B39.9 map to? +
Per CMS GEMs, B39.9 maps to ICD-9 codes: 11590. 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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