ICD-10-CM Code B44.1

Other pulmonary aspergillosis

Version 2020 Billable Code

Valid for Submission

B44.1 is a billable code used to specify a medical diagnosis of other pulmonary aspergillosis. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code B44.1 might also be used to specify conditions or terms like chronic pulmonary aspergillosis or healthcare associated pulmonary aspergillosis or pneumonia in aspergillosis or pulmonary aspergillosis or tracheobronchitis due to aspergillus.

Short Description:Other pulmonary aspergillosis
Long Description:Other pulmonary 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 B44.1 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:

  • Chronic pulmonary aspergillosis
  • Healthcare associated pulmonary aspergillosis
  • Pneumonia in aspergillosis
  • Pulmonary aspergillosis
  • Tracheobronchitis due to Aspergillus

Clinical Information

  • PULMONARY ASPERGILLOSIS-. infections of the respiratory tract with fungi of the genus aspergillus.
  • INVASIVE PULMONARY ASPERGILLOSIS-. lung infections with the invasive forms of aspergillus usually after surgery transplantation prolonged neutropenia or treatment with high doses of corticosteroids. invasive pulmonary aspergillosis can progress to chronic necrotizing pulmonary aspergillosis or hematogenous spread to other organs.

Convert B44.1 to ICD-9

  • 117.3 - Aspergillosis (Approximate Flag)

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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