Histoplasmosis (B39)

Clinical Information for Histoplasmosis (B39)

Histoplasmosis - Infection resulting from exposure to the fungus HISTOPLASMA. It is worldwide in distribution and particularly common in the central and eastern states, especially areas around the Ohio and Mississippi River valleys.

Histoplasmosis - Infection resulting from exposure to the fungus HISTOPLASMA. It is worldwide in distribution and particularly common in the central and eastern states, especially areas around the Ohio and Mississippi River valleys.

Histoplasma - A mitosporic Onygenales fungal genus causing HISTOPLASMOSIS in humans and animals. Its single species is Histoplasma capsulatum which has two varieties: H. capsulatum var. capsulatum and H. capsulatum var. duboisii. Its teleomorph is AJELLOMYCES capsulatus.

Histoplasma - A mitosporic Onygenales fungal genus causing HISTOPLASMOSIS in humans and animals. Its single species is Histoplasma capsulatum which has two varieties: H. capsulatum var. capsulatum and H. capsulatum var. duboisii. Its teleomorph is AJELLOMYCES capsulatus.

Instructional Notations

Code First Code First
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.

  • associated AIDS B20

Use Additional Code Use Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.

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