Symptoms and signs involving cognition, perception, emotional state and behavior (R40-R46)
R40: Somnolence, stupor and coma

excludes1
neonatal coma (P91.5)
somnolence, stupor and coma in diabetes (E08-E13)
somnolence, stupor and coma in hepatic failure (K72.-)
somnolence, stupor and coma in hypoglycemia (nondiabetic) (E15)
R40.0: Somnolence
R40.1: Stupor
R40.2: Coma
R40.3: Persistent vegetative state
R40.4: Transient alteration of awareness

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