Traumatic brain compression with herniation, init

This code signifies a severe form of traumatic brain injury where increased intracranial pressure causes brain tissue to shift and protrude through an opening in the dura mater or skull. This life-threatening condition results from direct trauma and compromises vital brain functions.

Apply this code when documentation explicitly states traumatic brain compression with herniation, such as uncal, central, or tonsillar herniation, occurring during the initial phase of treatment. Supporting documentation includes neuroimaging reports (CT, MRI) confirming herniation and physician notes detailing the traumatic etiology and acute management.

• Ensure the documentation clearly links the herniation to a traumatic event.
• Verify the "initial encounter" designation; subsequent care would use different encounter codes.
• Always code the underlying traumatic brain injury (e.g., concussion, cerebral contusion) first, followed by this code as a complication.