ICD-10 B39.4
Billable / SpecificHistoplasmosis capsulati, unspecified
About ICD-10-CM B39.4
ICD-10-CM code B39.4 represents Histoplasmosis capsulati, unspecified. This is a billable/specific code in the Infectious and Parasitic Diseases chapter (block B39). The 2026 edition of ICD-10-CM B39.4 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under B39.4. Per CMS ICD-10-CM Tabular 2026.
- American histoplasmosis
Medicare LCD Coverage for B39.4
Local Coverage Determinations (LCDs) from CMS MACs that list B39.4 as a covered diagnosis.
Showing top 10 of 157 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing B39.4.
2 Aetna
1 Cigna
5 Medicare
CPT Codes Commonly Billed with B39.4
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- Q9957 CMS LCD: Billing and Coding: Transthoracic Echocardiography (TTE) CMS LCD
- Q9955 CMS LCD: Billing and Coding: Transthoracic Echocardiography (TTE) CMS LCD
- C8923 CMS LCD: Billing and Coding: Transthoracic Echocardiography (TTE) CMS LCD
- C8928 CMS LCD: Billing and Coding: Transthoracic Echocardiography (TTE) CMS LCD
- C8924 CMS LCD: Billing and Coding: Transthoracic Echocardiography (TTE) CMS LCD
- C8921 CMS LCD: Billing and Coding: Transthoracic Echocardiography (TTE) CMS LCD
- 76376 CMS LCD: Billing and Coding: Transthoracic Echocardiography (TTE) CMS LCD
- C8930 CMS LCD: Billing and Coding: Transthoracic Echocardiography (TTE) CMS LCD
- C8929 CMS LCD: Billing and Coding: Transthoracic Echocardiography (TTE) CMS LCD
- C8922 CMS LCD: Billing and Coding: Transthoracic Echocardiography (TTE) CMS LCD
Convert B39.4 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 |
|---|---|---|
| B39.4 | 11500 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To B39.4
Other codes in section B35-B49 (Mycoses).
ICD-10 B39.4, Billing FAQ
Is ICD-10 code B39.4 billable? +
Yes, B39.4 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 B39.4? +
ICD-10 B39.4 includes: American histoplasmosis.
What CPT codes are commonly billed with B39.4? +
Procedures frequently paired with B39.4 include: Q9957, Q9955, C8923, C8928, C8924.
What ICD-9 codes does B39.4 map to? +
Per CMS GEMs, B39.4 maps to ICD-9 codes: 11500. 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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