A48.2 Nonpneumonic Legionnaires' disease [Pontiac fever]

Billable ICD-10-CM code, FY2026.

Applies from A48 Other bacterial diseases, not elsewhere classified

Excludes1 (never code together)

• actinomycetoma (B47.1)

MS-DRG index

Defines the logic of DRG(s) 867-869 in MDC 18.

Approximate ICD-9-CM (GEMs)

• 040.89 Other specified bacterial diseases (approximate)

Diagnosis Index entries for A48.2

• Disease, diseased › legionnaires' › nonpneumonic
• Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › Pontiac
• Infection, infected, infective (opportunistic) › Legionella pneumophila › nonpneumonic
• Legionellosis › nonpneumonic
• Legionnaires' › disease › nonpneumonic

Nearby codes

• A48 Other bacterial diseases, not elsewhere classified
• A48.0 Gas gangrene
• A48.1 Legionnaires' disease
• A48.2 Nonpneumonic Legionnaires' disease [Pontiac fever] (this code)
• A48.3 Toxic shock syndrome
• A48.4 Brazilian purpuric fever
• A48.5 Other specified botulism
• A48.51 Infant botulism
• A48.52 Wound botulism