Diabetes included both type I and type II and was defined as any occurrence of International Classification of Diseases, Ninth Edition (ICD-9) diagnosis codes 250.xx, 357.2, 362.0x, or 366.41; ...
ICD-9 codes 433.X1, 434, and V12.54 demonstrated high PPVs for identifying confirmed cerebral events across care settings. Codes recorded in both inpatient and outpatient settings had higher PPVs but ...