Obtundation

Obtundation
Classification and external resources
ICD-9-CM	780.09

Obtundation refers to less than full alertness (altered level of consciousness), typically as a result of a medical condition or trauma.

The root word, obtund, means "dulled or less sharp" cf. obtuse angle.

External links

The dictionary definition of obtundation at Wiktionary

Symptoms and signs: cognition, perception, emotional state and behaviour (R40–R46, 780.0–780.5, 781.1)

Cognition

Alteration of consciousness	Confusion (Delirium) Somnolence Obtundation Stupor Unconsciousness Syncope Coma Persistent vegetative state

Fainting/Syncope	Carotid sinus syncope Heat syncope Vasovagal episode

Other	Amnesia Anterograde amnesia Retrograde amnesia Dizziness Vertigo Presyncope/Lightheadedness Disequilibrium Convulsion

Emotional state

Behavior

Perception/
sensation
disorder

Audition

Tactile perception

Visual perception

Hallucination: Auditory hallucination

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