INTRACRANIAL INJURY, EXCLUDING THOSE WITH SKULL FRACTURE (850-854)
Includes:
traumatic brain injury without skull fracture
Excludes:
intracranial injury with skull fracture (800-801) and (803-804), except .0 and .5
open wound of head without intracranial injury (870.0-873.9)
skull fracture alone (800-801) and (803-804) with .0, .5
Note:
The description "with open intracranial wound," used in the fourth-digit subdivisions, includes those specified as open or with mention of infection or foreign body.
The following fifth-digit subclassification is for use with categories 851-854:
0 unspecified state of consciousness
1 with no loss of consciousness
2 with brief [less than one hour] loss of consciousness
3 with moderate [1-24 hours] loss of consciousness
4 with prolonged [more than 24 hours] loss of consciousness and return to pre-existing conscious level
5 with prolonged [more than 24 hours] loss of consciousness without return to pre-existing conscious level
Use fifth-digit 5 to designate when a patient is unconscious and dies before regaining consciousness, regardless of the duration of the loss of consciousness
6 with loss of consciousness of unspecified duration
9 with concussion, unspecified