Rare infectious encephalitis characterised by an acute onset of neurological signs and symptoms (altered consciousness, seizures, headaches, meningeal signs, behavioural changes) due to bacterial infection by Mycoplasma pneumoniae. Patients typically present unspecific signs and symptoms such as fever, nausea, vomiting, fatigue prior to onset of neurological manifestations and frequently have a history of a respiratory tract infection (pneumonia, bronchiolitis, pharyngitis). [from
SNOMEDCT_US]