IndexICD-11
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MB20.1

Coma

Category

Definition

Coma is characterized by the absence of arousal and thus also of consciousness. It is a state of unarousable unresponsiveness in which the patient lies with the eyes closed and has no awareness of self and surroundings. The patient lacks the spontaneous periods of wakefulness and eye-opening induced by stimulation that can be observed in the vegetative state. To be clearly distinguished from syncope, concussion, or other states of transient unconsciousness, coma must persist for at least one hour. In general, comatose patients who survive begin to awaken and recover gradually within 2 to 4 weeks. This recovery may go no further than vegetative state or minimally conscious state or these may be stages (brief or prolonged) on the way to more complete recovery of consciousness.

Exclusions

  • Diabetic coma
  • Hepatic coma
  • Neonatal coma
  • Nondiabetic hypoglycaemic coma
  • chronic uremic coma

Index Terms

ComacomatoseexanimationComa, NOSUnconsciousness, NOSunconsciousnessComa scale, eyes openComa scale, eyes open, neverComa scale, eyes open score 1Coma scale, eyes open, to painComa scale, eyes open, to pain, score 2Coma scale, eyes open, to soundComa scale, eyes open, to sound, score 3Coma scale, eyes open, spontaneousComa scale, eyes open, spontaneous, score 4Coma scale, best verbal responseComa scale, best verbal response, noneComa scale, best verbal response, none, score 1Coma scale, best verbal response, incomprehensible words or soundsComa scale, best verbal response, incomprehensible words or sounds, score 2Coma scale, best verbal response, inappropriate wordsComa scale, best verbal response, inappropriate words, score 3Coma scale, best verbal response, confused conversationComa scale, best verbal response, confused conversation, score 4Coma scale, best verbal response, orientedComa scale, best verbal response, oriented, score 5Coma scale, best motor responseComa scale, best motor response, noneFlaccid responseComa scale, best motor response, none, score 1Coma scale, best motor response, extensionDecerebrate postureComa scale, best motor response, extension, score 2Coma scale, best motor response, abnormal flexion to painDecorticate postureComa scale, best motor response, abnormal flexion to pain, score 3Coma scale, best motor response, flexion withdrawal to painComa scale, best motor response, flexion withdrawal to pain, score 4Coma scale, best motor response, localises to painComa scale, best motor response, localises to pain, score 5Coma scale, best motor response, obeys commandsComa scale, best motor response, obeys commands, score 6
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