B39

ICD-10Non-billable category

Histoplasmosis

Official ICD-10-CM descriptor (FY2026)

Histoplasmosis

B39 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.

Code first

Sequence the underlying condition before this code.

  • associated AIDS (B20)

Use additional code

Report an additional code to identify the associated condition.

  • code for any associated manifestations, such as:
  • endocarditis (I39)
  • meningitis (G02)
  • pericarditis (I32)
  • retinitis (H32)

More specific codes under B39

Where this code sits

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.

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