. Author manuscript; available in PMC: 2019 Oct 1.

Published in final edited form as: Pharmacoepidemiol Drug Saf. 2018 Feb 6;27(10):1085–1091. doi: 10.1002/pds.4396

TABLE 1.

Description of ICD9 codes used in CMS algorithms to classify MI events

ICD9 Codes	Description
Diagnosis:
410.xx	Acute myocardial infarction
411.1	Intermediate coronary syndrome
413.xx	Angina pectoris

Procedure:
00.66	Percutaneous transluminal coronary angioplasty
88.5x	Angiocardiography
37.2x	Diagnostic procedures on heart and pericardium
36.0x	Removal of coronary artery obstruction and insertion of stent (starting 10/2007)
36.1x	Bypass anastomosis for heart revascularization (starting 10/2007)