Late effects of cerebrovascular disease, cognitive deficits

This code signifies persistent cognitive impairments, such as memory loss, executive dysfunction, or language difficulties, that are a direct consequence of a past cerebrovascular event (e.g., stroke, transient ischemic attack). These deficits are not acute but represent long-term neurological sequelae impacting daily function.

Assign this code when a patient presents with documented cognitive deficits clearly attributed to a prior cerebrovascular accident, and the acute phase of the cerebrovascular event has concluded. Documentation should explicitly link the cognitive impairment to the previous stroke or TIA, often noted as "post-stroke cognitive impairment" or "vascular dementia due to prior CVA."

• Always sequence this code after the specific type of cerebrovascular disease (e.g., history of cerebral infarction) if still relevant.
• Do not use for acute cognitive changes during the initial stroke hospitalization; those are coded with the acute stroke diagnosis.
• Distinguish from other forms of dementia; documentation must specify a vascular etiology linked to a prior CVA.