2024 ICD-10-CM Diagnosis Code B59
Pneumocystosis
- ICD-10-CM Code:
- B59
- ICD-10 Code for:
- Pneumocystosis
- Is Billable?
- Yes - Valid for Submission
- Chronic Condition Indicator: [1]
- Not chronic
- Code Navigator:
B59 is a billable diagnosis code used to specify a medical diagnosis of pneumocystosis. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.
Approximate Synonyms
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Colonization of respiratory tract with Pneumocystis jirovecii
- Disseminated pneumocystosis
- Extrapulmonary pneumocystis infection
- Fungal choroiditis
- Infection by Pneumocystis jirovecii
- Infection by Pneumocystis jirovecii
- Infection by Pneumocystis jirovecii
- Infection caused by Pneumocystis co-occurrent with human immunodeficiency virus infection
- Infection caused by Pneumocystis co-occurrent with human immunodeficiency virus infection
- Infection of lung caused by Pneumocystis
- Infection of lung caused by Pneumocystis
- Infection of lung caused by Pneumocystis
- Lung cyst
- Pneumocystis jirovecii choroiditis
- Pneumocystis jirovecii lung cyst
- Pneumocystis jirovecii present
- Pneumocystis jirovecii related spontaneous pneumothorax
- Pneumocystosis
- Pneumocystosis
- Pneumocystosis
- Pneumocystosis
- Pneumocystosis
- Pneumocystosis
- Pneumocystosis pneumonia
- Pneumocystosis with AIDS
- Pulmonary nodule caused by Pneumocystis
- Spontaneous pneumothorax
Clinical Classification
| Clinical Category | CCSR Category Code | Inpatient Default CCSR | Outpatient Default CCSR |
|---|---|---|---|
| Fungal infections | INF004 | N - Not default inpatient assignment for principal diagnosis or first-listed diagnosis. | N - Not default outpatient assignment for principal diagnosis or first-listed diagnosis. |
| Pneumonia (except that caused by tuberculosis) | RSP002 | Y - Yes, default inpatient assignment for principal diagnosis or first-listed diagnosis. | Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis. |
Tabular List of Diseases and Injuries
The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.
Inclusion Terms
Inclusion TermsThese terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- Pneumonia due to Pneumocystis carinii
- Pneumonia due to Pneumocystis jiroveci
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).
- - Disease, diseased - See Also: Syndrome;
- - protozoal - B64
- - pneumocystosis - B59
- - protozoal - B64
- - Infection, infected, infective (opportunistic) - B99.9
- - Pneumocystis carinii (pneumonia) - B59
- - Pneumocystis jiroveci (pneumonia) - B59
- - Pneumocystis carinii pneumonia - B59
- - Pneumocystosis (with pneumonia) - B59
Convert B59 to ICD-9-CM
- ICD-9-CM Code: 136.3 - Pneumocystosis
Patient Education
Pneumocystis Infections
Pneumocystis jirovecii is a tiny fungus that lives in the lungs of many people. Most people's immune systems keep the fungus under control. But if you have a weakened immune system, the fungus can make you very sick.
The most common type of infection is pneumocystis pneumonia (PCP). PCP once was the major cause of death for people with HIV/AIDS. But now, it is possible to prevent or treat most cases. The key to surviving PCP is early treatment. The first signs of PCP are fever, dry cough, shortness of breath, and fatigue. If you have a weakened immune system and have these symptoms, see your doctor right away.
To diagnose PCP, doctors use a microscope to look for the fungus in a sample of lung fluid or tissue. Treatment is with antibiotics.
There is no vaccine to prevent PCP. Some people who are at high risk of getting PCP may need to take antibiotics to prevent it.
[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.