ICD10BillableValid for clinical use
ICD-10 Code B39.9: Histoplasmosis, unspecified
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Certain infectious and parasitic diseases (A00-B99).
When is it used?
- May be used when a clinician documents histoplasmosis, unspecified in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code can be used as a clinically usable diagnosis entry in standardized coding workflows.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
Code hierarchy
chapter
1Certain infectious and parasitic diseases (A00-B99)
block
B35-B49Mycoses
category
B39Histoplasmosis
currentB39
Where you may see this code
You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.
Related specialists
Infectious Disease SpecialistGeneral Physician
Related codes
Sibling codes
B39.0Acute pulmonary histoplasmosis capsulatibillableB39.1Chronic pulmonary histoplasmosis capsulatibillableB39.2Pulmonary histoplasmosis capsulati, unspecifiedbillableB39.3Disseminated histoplasmosis capsulatibillableB39.4Histoplasmosis capsulati, unspecifiedbillableB39.5Histoplasmosis duboisiibillable
Coverage-related procedures and services
CPT 92134high
COMPUTERIZED OPHTHALMIC DIAGNOSTIC IMAGING (EG, OPTICAL COHERENCE TOMOGRAPHY [OCT]), POSTERIOR SEGMENT, WITH INTERPRETATION AND REPORT, UNILATERAL OR BILATERAL; RETINA
Source: CMS coverage guidance
CPT 82306high
VITAMIN D; 25 HYDROXY, INCLUDES FRACTION(S), IF PERFORMED
Source: CMS coverage guidance
CPT 72126high
COMPUTED TOMOGRAPHY, CERVICAL SPINE; WITH CONTRAST MATERIAL
Source: CMS coverage guidance
CPT 72125high
COMPUTED TOMOGRAPHY, CERVICAL SPINE; WITHOUT CONTRAST MATERIAL
Source: CMS coverage guidance
CPT 72127high
COMPUTED TOMOGRAPHY, CERVICAL SPINE; WITHOUT CONTRAST MATERIAL, FOLLOWED BY CONTRAST MATERIAL(S) AND FURTHER SECTIONS
Source: CMS coverage guidance
CPT 70460high
COMPUTED TOMOGRAPHY, HEAD OR BRAIN; WITH CONTRAST MATERIAL(S)
Source: CMS coverage guidance
Mapped diagnoses and classifications
SNOMED_CT 430404002high
Abscess of medulla of spinal cord caused by Histoplasma
Source: SNOMED International ICD-10 map
SNOMED_CT 240744005high
Cutaneous histoplasmosis
Source: SNOMED International ICD-10 map
SNOMED_CT 416994002high
Histo spot
Source: SNOMED International ICD-10 map
SNOMED_CT 187039009high
Histoplasma capsulatum with retinitis
Source: SNOMED International ICD-10 map
SNOMED_CT 1163481006high
Histoplasma dacryoadenitis
Source: SNOMED International ICD-10 map
SNOMED_CT 406587001high
Histoplasma infection of central nervous system
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy and official ICD code match exactly.
Legacy codes
B39.9
Common synonyms
Histoplasmosis, unspecifiedHistoplasmosis
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.