Get started free

B39

Non-billable

Histoplasmosis

B39 is the ICD-10-CM code for Histoplasmosis. It is a non-billable category code — use a more specific child code such as B39.0 for billing.

Status
Header (non-billable)
Chapter
A00-B99
Subcodes
7
Edition
FY2026

A00-B99 Certain infectious and parasitic diseases

What this means — in plain language

MedlinePlus · NIH

What is histoplasmosis? Histoplasmosis is an infection caused by a fungus called Histoplasma . This fungus is common in the central and eastern United States, especially around the Ohio and Mississippi River valleys. It can also be found in parts of Central and South America, Africa, Asia, and Australia. It lives in the environment, especially in soil that contains large amounts of bat or bird droppings (poop). How…

Read more about Histoplasmosis at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Code first

  • •associated AIDS (B20)

Use additional code

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

Frequently asked questions

What is ICD-10 code B39?
B39 is the ICD-10-CM code for "Histoplasmosis". It falls under A00-B99 Certain infectious and parasitic diseases.
Is B39 a billable code?
No — B39 is a non-billable header code. Use a more specific child code (such as B39.0) for billing.
What are the subcodes of B39?
B39 has 7 more specific child codes, including B39.0, B39.1, B39.2.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

Look up another ICD-10 code or condition

Powered by Eleplan

Free ICD-10 lookup is just the start. Eleplan keeps the whole care plan in one place.

Diagnoses, medications, documents, appointments, and the whole care team — organized and always in sync, with Ellie, your AI care assistant, on top of it. Free to start.

Get started freeSee how Eleplan works →