ICD-10-CM Code B40

Blastomycosis

Version 2020 Non-Billable Code

Not Valid for Submission

B40 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of blastomycosis. The code is NOT valid for the year 2020 for the submission of HIPAA-covered transactions.

ICD-10:B40
Short Description:Blastomycosis
Long Description:Blastomycosis

Consider the following ICD-10 codes with a higher level of specificity:

  • B40.0 - Acute pulmonary blastomycosis
  • B40.1 - Chronic pulmonary blastomycosis
  • B40.2 - Pulmonary blastomycosis, unspecified
  • B40.3 - Cutaneous blastomycosis
  • B40.7 - Disseminated blastomycosis
  • B40.8 - Other forms of blastomycosis
  • B40.81 - Blastomycotic meningoencephalitis
  • B40.89 - Other forms of blastomycosis
  • B40.9 - ... unspecified

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code B40:

Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • Brazilian blastomycosis B41
  • keloidal blastomycosis B48.0

Clinical Information

  • BLASTOMYCOSIS-. a fungal infection that may appear in two forms: 1 a primary lesion characterized by the formation of a small cutaneous nodule and small nodules along the lymphatics that may heal within several months; and 2 chronic granulomatous lesions characterized by thick crusts warty growths and unusual vascularity and infection in the middle or upper lobes of the lung.
  • PARACOCCIDIOIDOMYCOSIS-. a mycosis affecting the skin mucous membranes lymph nodes and internal organs. it is caused by paracoccidioides brasiliensis. it is also called paracoccidioidal granuloma. superficial resemblance of p. brasiliensis to blastomyces brasiliensis blastomyces may cause misdiagnosis.
  • LOBOMYCOSIS-. a chronic fungal subcutaneous infection endemic in rural regions in south america and central america. the causal organism is lacazia labol.

Code Classification

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients


Fungal Infections

If you have ever had athlete's foot or a yeast infection, you can blame a fungus. A fungus is a primitive organism. Mushrooms, mold and mildew are examples. Fungi live in air, in soil, on plants and in water. Some live in the human body. Only about half of all types of fungi are harmful.

Some fungi reproduce through tiny spores in the air. You can inhale the spores or they can land on you. As a result, fungal infections often start in the lungs or on the skin. You are more likely to get a fungal infection if you have a weakened immune system or take antibiotics.

Fungi can be difficult to kill. For skin and nail infections, you can apply medicine directly to the infected area. Oral antifungal medicines are also available for serious infections.


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