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2009 ICD-9-CM

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850 Concussion
Includes:
commotio cerebri
Excludes:
concussion with:
cerebral laceration or contusion (851.0-851.9)
cerebral hemorrhage (852-853)
head injury NOS (959.01)
 eicd10
850.0 With no loss of consciousness
Concussion with mental confusion or disorientation, without loss of consciousness
850.1 With brief loss of consciousness
Loss of consciousness for less than one hour
 eicd10
850.2 With moderate loss of consciousness
Loss of consciousness for 1-24 hours
 eicd10
850.3 With prolonged loss of consciousness and return to pre-existing conscious level
Loss of consciousness for more than 24 hours with complete recovery
 eicd10
850.4 With prolonged loss of consciousness, without return to pre-existing conscious level
 eicd10
850.5 With loss of consciousness of unspecified duration
 eicd10
850.9 Concussion, unspecified
 
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