A48.1
BillableLegionnaires' disease
A48.1 is the ICD-10-CM code for Legionnaires' disease. It is a billable, specific code valid for reimbursement.
A00-B99 Certain infectious and parasitic diseases
What this means — in plain language
MedlinePlus · NIHWhat is Legionnaires' Disease? Legionnaires' disease is a serious type of pneumonia caused by Legionella bacteria . The disease got its name when a group of people at an American Legion convention became ill with this type of pneumonia. Legionella is found naturally in freshwater, such as lakes and rivers. It can also be found in soil. But people usually only get sick from it when if it grows and spreads in man-made…
Read more about Legionnaires' Disease at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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