2024 ICD-10-CM Diagnosis Code A48.1
Legionnaires' disease
- ICD-10-CM Code:
- A48.1
- ICD-10 Code for:
- Legionnaires' disease
- Is Billable?
- Yes - Valid for Submission
- Chronic Condition Indicator: [1]
- Not chronic
- Code Navigator:
A48.1 is a billable diagnosis code used to specify a medical diagnosis of legionnaires' disease. 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:
- Healthcare associated bacterial pneumonia
- Healthcare associated Legionnaires' disease
- Hospital acquired pneumonia
- Infection by Legionella pneumophilia
- Legionella infection
- Legionella infection
- Legionella pneumonia
- Legionella pneumonia
- Pittsburgh pneumonia
Clinical Classification
Clinical Category | CCSR Category Code | Inpatient Default CCSR | Outpatient Default CCSR |
---|---|---|---|
Bacterial infections | INF003 | 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. |
Clinical Information
Legionnaires' Disease
an acute, sometimes fatal, pneumonia-like bacterial infection characterized by high fever, malaise, muscle aches, respiratory disorders and headache. it is named for an outbreak at the 1976 philadelphia convention of the american legion.
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;
- - legionnaires' - A48.1
- - Legionellosis - A48.1
Convert A48.1 to ICD-9-CM
- ICD-9-CM Code: 482.84 - Legionnaires' disease
Patient Education
Legionnaires' Disease
Legionnaires' disease is a type of pneumonia caused by bacteria. You usually get it by breathing in mist from water that contains the bacteria. The mist may come from hot tubs, showers, or air-conditioning units for large buildings. The bacteria don't spread from person to person.
Symptoms of Legionnaires' disease include high fever, chills, a cough, and sometimes muscle aches and headaches. Other types of pneumonia have similar symptoms. You will probably need a chest x-ray to diagnose the pneumonia. Lab tests can detect the specific bacteria that cause Legionnaires' disease.
Most people exposed to the bacteria do not become sick. You are more likely to get sick if you:
- Are older than 50
- Smoke
- Have a chronic lung disease
- Have a weak immune system
Legionnaires' disease is serious and can be life-threatening. However, most people recover with antibiotic treatment.
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.