Diffuse TBI w/o loss of consciousness, init

This code signifies a widespread injury to the brain resulting from trauma, where the patient did not experience any period of unconsciousness. It indicates a non-focal brain injury, often associated with acceleration-deceleration forces, without an observable loss of awareness or responsiveness.

Apply this code for patients presenting with symptoms of a diffuse traumatic brain injury, such as headache, dizziness, or cognitive changes, following an acute traumatic event, and where medical records explicitly state no loss of consciousness occurred. This is appropriate for the initial assessment and treatment of the injury.

• Ensure documentation clearly specifies "diffuse" and "without loss of consciousness."
• Distinguish from focal brain injuries (e.g., contusions) and concussions with documented loss of consciousness.
• The "A" seventh character indicates an initial encounter for active treatment of the injury.