Memory deficit following other cerebrovascular disease

This code signifies a cognitive impairment characterized by difficulty with memory, occurring as a sequela of a cerebrovascular event other than a stroke (e.g., transient ischemic attack, cerebral aneurysm rupture, or other non-stroke cerebrovascular disease). It indicates a persistent memory deficit directly attributable to the prior cerebrovascular incident.

Apply this code when a patient presents with documented memory impairment that a physician explicitly links to a previous cerebrovascular disease, excluding an ischemic or hemorrhagic stroke. Documentation should clearly state the causal relationship and specify the type of cerebrovascular disease if known.

• Ensure the documentation clearly distinguishes the cerebrovascular event from an acute stroke (I60-I63).
• Do not use this code for memory deficits due to current, active cerebrovascular disease; it is for sequelae.
• Code any underlying or associated mental and behavioral disorders separately if documented.