Late effects of cerebrovascular disease, disturbances of vision

This code signifies persistent visual impairments that are a direct consequence of a prior cerebrovascular event, such as a stroke or transient ischemic attack (TIA). These disturbances are not acute manifestations but rather long-term sequelae affecting visual acuity, fields, or perception.

Assign this code when a patient presents with chronic visual deficits clearly documented as residual effects of a past CVA. Documentation should explicitly link the visual disturbance to the cerebrovascular disease, often after the acute phase has resolved.

• Always sequence this code after the primary code identifying the specific type of cerebrovascular disease (e.g., history of cerebral infarction).
• Ensure documentation specifies the type of visual disturbance (e.g., homonymous hemianopsia, diplopia) if available, though this code is for general disturbances.
• Do not use for acute visual symptoms occurring during the initial CVA; those would be coded with acute stroke codes.