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; ...
Coronary artery bypass graft was defined as a qualifying code (Current Procedural Terminology [CPT] or Healthcare Common Procedure Coding System [HCPCS] code 33140 ...