Contus/lac/hem brainstem w LOC of 31-59 min, subs

This code signifies a traumatic injury to the brainstem, specifically involving bruising, tearing, and bleeding, that resulted in a loss of consciousness lasting between 31 and 59 minutes. This diagnosis indicates a subsequent encounter for care related to this specific brainstem injury.

Use this code for follow-up visits, rehabilitation sessions, or ongoing treatment for a patient previously diagnosed with a brainstem contusion, laceration, and hemorrhage that caused a moderate period of unconsciousness. Documentation must clearly state the brainstem as the injured site, specify the nature of the injury (contusion, laceration, hemorrhage), and confirm the duration of the initial loss of consciousness was within the 31-59 minute range.

• Ensure the "D" seventh character is appropriate for a subsequent encounter; do not use for initial treatment or sequelae.
• Verify documentation explicitly states brainstem involvement; do not use for other brain regions.
• Confirm the loss of consciousness duration falls precisely within the 31-59 minute window; other durations have different codes.