Oth incomplete lesion at C1, sequela

This code signifies a long-term effect or complication resulting from a prior injury to the C1 level of the cervical spinal cord, specifically an incomplete lesion that is not otherwise specified. The patient presents with residual neurological deficits or symptoms attributable to this past spinal cord damage.

Apply this code when documenting a patient's current condition as a sequela of an old, resolved, or stabilized incomplete C1 spinal cord injury. Supporting documentation should clearly state the C1 level involvement, the incomplete nature of the lesion, and that the current symptoms are a direct consequence (sequela) of this past injury.

• Always use this code as a secondary diagnosis, following the code for the specific neurological deficit or symptom being treated.
• Ensure the documentation explicitly states "sequela" or "late effect" of the C1 spinal cord injury.
• Distinguish from acute or initial injury codes; this code is for chronic, residual conditions.