ICD10 code of Blastomycosis and ICD9 code

The primary ICD-10 code for Blastomycosis is B40, which encompasses various clinical manifestations including pulmonary, disseminated, and cutaneous forms. In the older ICD-9-CM classification system, Blastomycosis was categorized under code 116.0.

What exactly is Blastomycosis?

Blastomycosis is a systemic fungal infection caused by the dimorphic fungus Blastomyces dermatitidis or Blastomyces gilchristi. Unlike many other rare conditions, Blastomycosis is acquired through the inhalation of fungal spores found in moist soil and decaying organic matter, rather than through genetic inheritance. While it is not contagious between humans, the environmental nature of Blastomycosis means that geographic location is a primary risk factor for infection.

How is Blastomycosis classified for medical billing?

Accurate coding is essential for tracking the epidemiology of Blastomycosis. The following codes are used in clinical documentation to specify the site and severity of the infection:

• ICD-10 B40.0: Acute pulmonary blastomycosis


• ICD-10 B40.1: Chronic pulmonary blastomycosis


• ICD-10 B40.2: Cutaneous blastomycosis


• ICD-10 B40.3: Disseminated blastomycosis


• ICD-10 B40.9: Blastomycosis, unspecified

How does Blastomycosis affect the body?

The symptoms of Blastomycosis can mimic other illnesses, such as tuberculosis or lung cancer, which often leads to diagnostic delays. Patients frequently experience fever, cough, night sweats, and chest pain. If left untreated, Blastomycosis can spread from the lungs to the skin, bones, and central nervous system. Currently, 27 members of the DiseaseMaps.org community are managing their experiences with this condition, highlighting the need for increased clinical awareness.

Next steps

• Consult an infectious disease specialist if you suspect symptoms of Blastomycosis, especially if you reside or have traveled to endemic areas like the Ohio and Mississippi River valleys.


• Request a fungal culture or antigen test, as these are the gold standards for diagnosing Blastomycosis.


• Connect with the DiseaseMaps.org community to share experiences with others navigating this rare fungal infection.

Medical disclaimer: This information is for educational purposes only and does not constitute professional medical advice, diagnosis, or treatment; always seek the advice of your physician regarding a medical condition.

References

• CDC: Fungal Diseases - Blastomycosis (Blastomyces)


• NIH Genetic and Rare Diseases Information Center (GARD)


• World Health Organization (WHO) ICD-10 Browser


• Orphanet: Rare Disease Database