Appendix 1: OPCS4 codes and ICD codes used to identify revascularisation and admission diagnoses in HES database
Coronary Artery Bypass Grafting
OPCS4 codes K40-K46 (CABGs)
K40 Saphenous vein graft replacement of coronary artery
K41 Other autograft replacement of coronary artery
K42 Allograft replacement of coronary artery
K43 Prosthetic replacement of coronary artery
K44 Other replacement of coronary artery
K45 Connection of thoracic artery to coronary artery
K46 Other bypass of coronary artery
Percutaneous transluminal coronary angioplasty
OPCS4 codes K49-K50 (PTCAs)
K49 Transluminal balloon angioplasty of coronary artery
K50 Other therapeutic transluminal operations on coronary artery
Acute Myocardial Infaction (AMI)
1991-1994 ICD9 code 410 (acute myocardial infarction)
1995-1999 ICD10 code I21 (acute myocardial infarction)
Ischaemic Heart Disease (IHD)
1991-1994 ICD9 codes
410 Acute myocardial infarction
411 Other acute and subacute forms of ischaemic heart disease
412 Old myocardial infarction
413 Angina pectoris
414 Other forms of chronic ischaemic heart disease
1995-1999 ICD10 codes
I20 Angina pectoris
I21 Acute myocardial infarction
I22 Subsequent myocardial infarction
I23 Certain current complication follow acute myocardial infarct
I24 Other acute ischaemic heart diseases
I25 Chronic ischaemic heart disease
Angiography
OPCS4 code K64 Contrast radiology of heart
