AHA Coding Clinic® for ICD-9 - 1992 Fourth Quarter; New/Revised Codes

Alteration of Consciousness

Subcategory 780.0, Coma and stupor, has been modified to distinguish between transient alteration of consciousness and other forms of loss of consciousness. The symptoms of transient alteration of consciousness are staring spells or transient loss of awareness. The condition may be indicative of a migraine, epileptic seizures, transient ischemic attack, or a specific psychological syndrome. However, in many instances a definitive underlying disease process cannot be identified to explain the symptoms. ...

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