Primary blast injury of brain, NEC LOC of 6-24 hrs, subs

This code signifies a brain injury resulting from a primary blast event, where the patient experienced a loss of consciousness lasting between 6 and 24 hours. This specific code is used for encounters following the initial treatment of the injury. "Not elsewhere classified" indicates that the injury doesn't fit into more specific blast injury categories.

Apply this code for follow-up visits, rehabilitation, or ongoing management of a patient who sustained a primary blast-related brain injury with a documented loss of consciousness between 6 and 24 hours. Documentation should clearly state the cause as a primary blast, the duration of unconsciousness, and that this is not the initial encounter for the injury.

• Ensure documentation specifies "primary blast injury" and not secondary, tertiary, or quaternary blast injuries.
• Verify the duration of loss of consciousness falls strictly within the 6 to 24-hour window; other durations have different codes.
• This is a "subsequent encounter" code; do not use for the initial treatment of the acute injury.