Concussion w LOC of 30 minutes or less, sequela

This code signifies the long-term effects or complications arising from a concussion where the patient experienced a brief loss of consciousness, specifically 30 minutes or less. It indicates that the acute injury has passed, but residual symptoms or conditions persist due to the initial trauma.

Apply this code when documenting the sequelae of a concussion with a documented loss of consciousness of 30 minutes or less, after the initial injury has healed. This is appropriate for conditions like post-concussion syndrome, chronic headaches, or cognitive deficits directly attributable to the past concussion. Documentation should clearly state the prior concussion and the current persistent symptoms.

• This code is for sequelae, meaning it should be used for chronic or residual conditions, not the initial acute injury.
• Ensure documentation specifies "loss of consciousness of 30 minutes or less" from the original concussion event.
• Always sequence this code after the specific manifestation of the sequela (e.g., chronic headache, cognitive deficit).