Naegleriasis

This code represents Naegleriasis, a rare and often fatal infection of the brain and meninges caused by the amoeba Naegleria fowleri. It is characterized by acute meningoencephalitis, typically manifesting as primary amoebic meningoencephalitis (PAM).

Use this code when documentation confirms a diagnosis of Naegleriasis, often following exposure to contaminated warm freshwater. This diagnosis is typically supported by laboratory identification of Naegleria fowleri in cerebrospinal fluid (CSF) or tissue samples.

• Ensure documentation clearly specifies Naegleria fowleri as the causative agent to differentiate from other amoebic infections.
• This code is highly specific; avoid using it for other forms of amoebic encephalitis or meningitis.
• Consider sequencing this code as the primary diagnosis when it is the reason for the encounter.