Inaccuracy of the ICD-9-CM in identifying the diagnosis of ischemic cerebrovascular disease.
Tirschwell
D
D
Kukull
W A
WA
Longstreth
W T
WT
D002545:Brain Ischemia / Q000145:classification* / Q000175:diagnosis*; D002561:Cerebrovascular Disorders / Q000145:classification* / Q000175:diagnosis*; D002965:Classification / Q000379:methods; D016208:Databases, Factual / Q000592:standards / Q000706:statistics & numerical data; D006801:Humans; D008499:Medical Records / Q000592:standards* / Q000706:statistics & numerical data