2022 ICD-10-CM Code B46

Zygomycosis

Version 2021

Not Valid for Submission

ICD-10:B46
Short Description:Zygomycosis
Long Description:Zygomycosis

Code Classification

B46 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of zygomycosis. The code is not specific and is NOT valid for the year 2022 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding for Zygomycosis

Non-specific codes like B46 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for zygomycosis:

  • BILLABLE CODE - Use B46.0 for Pulmonary mucormycosis
  • BILLABLE CODE - Use B46.1 for Rhinocerebral mucormycosis
  • BILLABLE CODE - Use B46.2 for Gastrointestinal mucormycosis
  • BILLABLE CODE - Use B46.3 for Cutaneous mucormycosis
  • BILLABLE CODE - Use B46.4 for Disseminated mucormycosis
  • BILLABLE CODE - Use B46.5 for Mucormycosis, unspecified
  • BILLABLE CODE - Use B46.8 for Other zygomycoses
  • BILLABLE CODE - Use B46.9 for Zygomycosis, unspecified

Clinical Information

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.


[Learn More in MedlinePlus]

Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)