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  6. 2024 ICD-10-CM Code B44.9

2024 ICD-10-CM Diagnosis Code B44.9

Aspergillosis, unspecified

ICD-10-CM Code:
B44.9
ICD-10 Code for:
Aspergillosis, unspecified
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Not chronic
Code Navigator:

Code Classification

B44.9 is a billable diagnosis code used to specify a medical diagnosis of aspergillosis, unspecified. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Unspecified diagnosis codes like B44.9 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

Approximate Synonyms

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

  • Aspergilloma
  • Aspergillosis
  • Aspergillosis co-occurrent with human immunodeficiency virus infection
  • Chronic mycotic otitis externa
  • Chronic otitis externa due to aspergillosis
  • Infection by Aspergillus clavatus
  • Infection by Aspergillus flavus
  • Infection by Aspergillus fumigatus
  • Infection by Aspergillus nidulans
  • Infection by Aspergillus niger
  • Infection caused by Aspergillus montevidensis
  • Infection due to Aspergillus awamori
  • Infection due to Aspergillus bouffardii
  • Infection due to Aspergillus caesiellus
  • Infection due to Aspergillus candidus
  • Infection due to Aspergillus carneus
  • Infection due to Aspergillus chevalieri
  • Infection due to Aspergillus clavato-nanica
  • Infection due to Aspergillus conicus
  • Infection due to Aspergillus deflectus
  • Infection due to Aspergillus flavipes
  • Infection due to Aspergillus glaucus
  • Infection due to Aspergillus janus
  • Infection due to Aspergillus maydis
  • Infection due to Aspergillus niveus
  • Infection due to Aspergillus notatum
  • Infection due to Aspergillus ochraceus
  • Infection due to Aspergillus oryzae
  • Infection due to Aspergillus parasiticus
  • Infection due to Aspergillus penicillioides
  • Infection due to Aspergillus phialiseptus
  • Infection due to Aspergillus repens
  • Infection due to Aspergillus restrictus
  • Infection due to Aspergillus rugulosus
  • Infection due to Aspergillus sclerotiorum
  • Infection due to Aspergillus sulfureus
  • Infection due to Aspergillus sydowi
  • Infection due to Aspergillus taumanii
  • Infection due to Aspergillus terreus
  • Infection due to Aspergillus terricola
  • Infection due to Aspergillus unguis
  • Infection due to Aspergillus ustus
  • Infection due to Aspergillus versicolor
  • Infection due to Aspergillus wentii
  • Infection due to Neosartorya fischeri
  • Invasive aspergillosis
  • Invasive fungal infection
  • Neonatal infection caused by Aspergillus
  • Pulmonary aspergillosis

Clinical Classification

Clinical Information

  • Aspergillosis

    infections with fungi of the genus aspergillus.

  • 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.

  • 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.

  • Neuroaspergillosis

    infections of the nervous system caused by fungi of the genus aspergillus, most commonly aspergillus fumigatus. aspergillus infections may occur in immunocompetent hosts, but are more prevalent in individuals with immunologic deficiency syndromes. the organism may spread to the nervous system from focal infections in the lung, mastoid region, sinuses, inner ear, bones, eyes, gastrointestinal tract, and heart. sinus infections may be locally invasive and enter the intracranial compartment, producing meningitis, fungal; cranial neuropathies; and abscesses in the frontal lobes of the brain. (from joynt, clinical neurology, 1998, ch 27, pp62-3)

  • Pulmonary Aspergillosis

    infections of the respiratory tract with fungi of the genus aspergillus.

  • Aspergillus

    a genus of mitosporic fungi containing about 100 species and eleven different teleomorphs in the family trichocomaceae.

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Convert B44.9 to ICD-9-CM

  • ICD-9-CM Code: 117.3 - Aspergillosis
    Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Patient Education


Aspergillosis

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


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • 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. This was the first year ICD-10-CM was implemented into the HIPAA code set.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.