Contus/lac l cereb w LOC >24 hr w/o ret consc w surv, subs

This code signifies a traumatic brain injury involving bruising and tearing of the left cerebral hemisphere, resulting in a prolonged coma exceeding 24 hours from which the patient has not fully recovered to their baseline mental status. The "subsequent encounter" indicates ongoing care for the sequelae of this severe cerebral injury.

Apply this code for follow-up visits, rehabilitation, or long-term care encounters for a patient who previously sustained a severe left cerebral contusion and laceration with extended loss of consciousness. Documentation must clearly state the initial injury, the duration of unconsciousness (greater than 24 hours), the lack of return to pre-existing conscious level, and that the patient is still alive.

• Ensure documentation specifies "left cerebrum" and "loss of consciousness greater than 24 hours" with no return to baseline.
• This "D" seventh character is for subsequent encounters; use "A" for the initial encounter and "S" for sequela.
• Do not confuse with codes for concussion or less severe cerebral injuries; the prolonged LOC and lack of recovery are key.