Unspecified sequelae of unspecified cerebrovascular disease

This code signifies a residual condition or symptom resulting from a cerebrovascular event, where the specific type of cerebrovascular disease is not documented. It indicates a long-term effect of a stroke or similar brain injury, without specifying the nature of the original insult. The sequela itself is also unspecified.

This code is appropriate when a patient presents with a chronic neurological deficit or other lasting effect clearly attributed to a past cerebrovascular incident, but the medical record lacks specific details about the original cerebrovascular disease or the precise nature of the sequela. Documentation should explicitly link the current condition to a prior "stroke" or "CVA" without further specificity.

• Avoid using this code if the specific type of cerebrovascular disease (e.g., ischemic stroke, hemorrhagic stroke) is known and documented.
• Do not use this code if the specific sequela (e.g., aphasia, hemiplegia) is documented; instead, code the specific sequela with a more precise sequela code.
• This code should be a last resort when documentation is truly vague regarding both the original cerebrovascular event and its lasting effects.