eAPPENDIX 3. ADVERSE OUTCOME DEFINITIONS

Coronary artery bypass graft was defined as a qualifying code (Current Procedural Terminology [CPT] or Healthcare Common Procedure Coding System [HCPCS] code 33140 33141 33510 33511 33512 33513 33514 33516 33517 33518 33519 33521 33522 33523 33530 33533 33534 33535 33536 33570 33575 35600 S2204 S2204 S2205 S2206 S2207 S2208 or S2209; ICD-9 procedure code 36.10 36.11 36.12 36.13 36.14 36.15 36.16 36.17 36.19 36.2 36.3 36.31 36.32 36.33 36.34 or 36.39) occurring during a hospital inpatient stay or emergency department visit.

Percutaneous coronary intervention was defined as a qualifying code [CPT or HCPCS code 92920 92921 92924 92925 92928 92929 92933 92934 92937 92938 92941 92943 92944 92973 92980 92981 92982 92984 92995 92996 C9304 C9600 C9601 C9602 C9603 C9605 C9606 C9607 C9608 or G0290 or G0291 or S2220; International Classification of Diseases, Ninth Edition (ICD-9) procedure code 00.66 17.55 36.01 36.02 36.05] occurring during a hospital inpatient stay or emergency department visit.

Acute myocardial infarction was defined as an ICD-9 diagnosis code in Clinical Classifications Software (CCS) category 100 Acute MI (410*) occurring during a hospital inpatient stay or emergency department visit.

Stroke was defined as an ICD-9 diagnosis code in CCS category 109 (Acute CVD) or 110 (Precere occl) [ICD-9 diagnosis code 346.60 346.61 346.62 346.63 430 431 432.0 432.1 432.9 433.0 433.00 433.01 433.1 433.10 433.11 433.2 433.20 433.21 433.3 433.30 433.31 433.8 433.80 433.81 433.9 433.90 433.91 434.0 434.00 434.01 434.1 434.10 434.11 434.9 434.90 434.91 or 436] occurring during a hospital inpatient stay or emergency department visit.