A48.1Billable
Legionnaires' disease
- Chapter
- 1. Certain infectious and parasitic diseases
- Category
- A48
- Effective date
- October 1, 2026
Related codes in category A48
A48Other bacterial diseases, not elsewhere classifiedA48.0Gas gangreneYesA48.2Nonpneumonic Legionnaires' disease [Pontiac fever]YesA48.3Toxic shock syndromeYesA48.4Brazilian purpuric feverYesA48.5Other specified botulismA48.51Infant botulismYesA48.52Wound botulismYesA48.8Other specified bacterial diseasesYes
Frequently asked questions
What is ICD-10 code A48.1?
A48.1 is an ICD-10-CM diagnosis code for Legionnaires' disease.
Is A48.1 a billable code?
Yes. A48.1 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is A48.1 in?
A48.1 falls under Chapter 1: Certain infectious and parasitic diseases.
When did A48.1 become effective?
A48.1 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to A48.1?
A48.1 belongs to category A48, which includes 9 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.