Injury of optic tract and pathways, right side, sequela

This code signifies a long-term neurological deficit or complication affecting the right optic tract or its associated pathways, resulting from a previous injury. These pathways transmit visual information from the optic nerve to the brain, and damage can lead to various visual field defects or other neurological impairments. The "sequela" designation indicates that the acute injury has resolved, but its lasting effects persist.

Use this code when documenting a chronic visual or neurological impairment on the right side, directly attributable to a past injury of the optic tract or pathways. This applies to patients presenting with residual symptoms such as hemianopsia, quadrantanopsia, or other persistent visual field deficits following a resolved traumatic event. Documentation should clearly link the current condition to a prior injury and specify the right side.

• Always assign a sequela code (e.g., T90.4XXS for sequela of intracranial injury) as the primary diagnosis, followed by this code to specify the nature of the sequela.
• Ensure the medical record explicitly states the laterality (right side) and confirms the injury is to the optic tract or pathways, not just the optic nerve.
• Distinguish from acute injuries (S04.031A, D) or unspecified optic nerve/pathway injuries.