ICD-10-CM Code B44.81

Allergic bronchopulmonary aspergillosis

Version 2020 Billable Code

Valid for Submission

B44.81 is a billable code used to specify a medical diagnosis of allergic bronchopulmonary aspergillosis. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code B44.81 might also be used to specify conditions or terms like allergic bronchopulmonary aspergillosis or allergic bronchopulmonary mycosis or aspergillus bronchitis or tracheobronchitis due to aspergillus.

Short Description:Allergic bronchopulmonary aspergillosis
Long Description:Allergic bronchopulmonary aspergillosis

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code B44.81 are found in the index:


The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Allergic bronchopulmonary aspergillosis
  • Allergic bronchopulmonary mycosis
  • Aspergillus bronchitis
  • Tracheobronchitis due to Aspergillus

Clinical Information

  • ASPERGILLOSIS ALLERGIC BRONCHOPULMONARY-. hypersensitivity reaction allergic reaction to fungus aspergillus in an individual with long standing bronchial asthma. it is characterized by pulmonary infiltrates eosinophilia elevated serum immunoglobulin e and skin reactivity to aspergillus antigen.

Diagnostic Related Groups

The ICD-10 code B44.81 is grouped in the following groups for version MS-DRG V37.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC).
applicable from 10/01/2019 through 09/30/2020.


Convert B44.81 to ICD-9

  • 518.6 - Alrgc brncpul asprglosis

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


Aspergillosis is a disease caused by a fungus (or mold) called Aspergillus. The fungus is very common in both indoors and outdoors. Most people breathe in the spores of the fungus every day without being affected. But some people get the disease. It usually occurs in people with lung diseases or weakened immune systems.

There are different kinds of aspergillosis. One kind is allergic bronchopulmonary aspergillosis (also called ABPA). Symptoms of ABPA include wheezing and coughing. ABPA can affect healthy people but it is most common in people with asthma or cystic fibrosis.

Another kind is invasive aspergillosis, which damages tissues in the body. It usually affects the lungs. Sometimes it can also cause infection in other organs and spread throughout the body. It affects people who have immune system problems, such as people who have had a transplant, are taking high doses of steroids, or getting chemotherapy for some cancers.

Your doctor might do a variety of tests to make the diagnosis, including a chest x-ray, CT scan of the lungs, and an examination of tissues for signs of the fungus. Treatment is with antifungal drugs. If you have ABPA, you may also take steroids.

Centers for Disease Control and Prevention

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