Primary blast injury of brain, NEC LOC of 31-59 min, init

This code signifies a brain injury resulting directly from a primary blast wave, characterized by a loss of consciousness lasting between 31 and 59 minutes. This specific code is used when the injury is not classified under more specific blast injury codes and represents the initial treatment for this condition.

Apply this code for patients presenting with a brain injury directly attributable to a blast event, such as from an explosion, where the documented loss of consciousness falls within the 31-59 minute timeframe. Documentation should clearly state "primary blast injury" and specify the duration of unconsciousness.

• Ensure documentation explicitly states "primary blast injury" and not secondary or tertiary blast effects.
• Verify the exact duration of loss of consciousness; codes vary significantly based on this timeframe.
• This "initial encounter" code is only for the period when the patient is receiving active treatment for the injury. Subsequent care would use a different encounter character.