Cereb infrc d/t unsp occls or stenos of unsp mid cereb art

This code signifies an ischemic stroke resulting from a blockage or narrowing within an unspecified segment of the middle cerebral artery, where the specific nature of the occlusion or stenosis is not documented. It indicates brain tissue death due to insufficient blood supply in the territory supplied by the middle cerebral artery.

Apply this code when medical record documentation confirms a cerebral infarction attributed to an occlusion or stenosis of the middle cerebral artery, but the laterality (left or right) and the specific type of occlusion (e.g., thrombosis, embolism) are not specified. This is a default code when more precise information is unavailable.

• Avoid using this code if the laterality of the middle cerebral artery (left or right) is documented; instead, select a more specific code from the I63.51- subcategory.
• Ensure documentation clearly states "cerebral infarction" and "middle cerebral artery" to support this code.
• Do not use this code if the cause of the occlusion (e.g., embolism, thrombosis) is specified; refer to codes within I63.4- or I63.3- accordingly.