International Classification of Diseases (ICD) codes for cerebrovascular disease.

* 433: occlusion/stenosis of pre-cerebral arteries with or without infarction. † 434: thrombosis/embolism of cerebral arteries with or without infarction. Codes in blue text denote ICD-9 codes which most closely represent stroke when subdivided using additional coding available in the clinically modified version of ICD-9 (ICD-9-CM) used in North America. In ICD-9-CM, ‘with infarction’ (433.x1, 434.x1) is distinguished from ‘without infarction’ (433.x0, 434.x0).

‡ 436: acute, ill-defined cerebrovascular disease

¶ a pathological term for ischaemic stroke

§ G46: not a diagnostic code; may be used for the presenting symptoms of either stroke or TIA.