Class I indications for PCI:
silent cardiac ischaemia requiring myocardial revascularization + absence of left main coronary artery disease + one-vessel coronary artery disease + absence of significant proximal LAD stenosis + coronary lesion morphology suitable for PCI and CABG + low predicted surgical morality,
silent cardiac ischaemia requiring myocardial revascularization + absence of left main coronary artery disease + two-vessel coronary artery disease + absence of significant proximal LAD stenosis + coronary lesion morphology suitable for PCI and CABG + low predicted surgical morality.

Class IIa indications for PCI:
silent cardiac ischaemia requiring myocardial revascularization + absence of left main coronary artery disease + one-vessel coronary artery disease + significant proximal LAD stenosis + coronary lesion morphology suitable for PCI and CABG + low predicted surgical morality,
silent cardiac ischaemia requiring myocardial revascularization + absence of left main coronary artery disease + two-vessel coronary artery disease + significant proximal LAD stenosis + coronary lesion morphology suitable for PCI and CABG + low predicted surgical morality,
silent cardiac ischaemia requiring myocardial revascularization + absence of left main coronary artery disease + three-vessel coronary artery disease + simple coronary lesions + coronary lesion morphology suitable for PCI and CABG + possibility of full functional myocardial revascularisation by PCI + SYNTAX score < 22 + low predicted surgical morality,
silent cardiac ischaemia requiring myocardial revascularization + disease of ostium of left main coronary artery + absence of other significant coronary lesions + coronary lesion morphology suitable for PCI and CABG + low predicted surgical morality,
silent cardiac ischaemia requiring myocardial revascularization + disease of ostium of left main coronary artery + one-vessel coronary artery disease + coronary lesion morphology suitable for PCI and CABG + low predicted surgical morality,
silent cardiac ischaemia requiring myocardial revascularization + disease of shaft of left main coronary artery absence of other significant coronary lesions + coronary lesion morphology suitable for PCI and CABG + low predicted surgical morality,
silent cardiac ischaemia requiring myocardial revascularization + disease of shaft of left main coronary artery + one-vessel coronary artery disease + coronary lesion morphology suitable for PCI and CABG + low predicted surgical morality.

Class IIb indications for PCI:
silent cardiac ischaemia requiring myocardial revascularization + disease of bifurcation of left main coronary artery absence of other significant coronary lesions + coronary lesion morphology suitable for PCI and CABG + low predicted surgical morality,
silent cardiac ischaemia requiring myocardial revascularization + disease of bifurcation of left main coronary artery + one-vessel coronary artery disease + coronary lesion morphology suitable for PCI and CABG + low predicted surgical morality,
silent cardiac ischaemia requiring myocardial revascularization + left main coronary artery disease + multi-vessel coronary artery disease + coronary lesion morphology suitable for PCI and CABG + SYNTAX score < 32 + low predicted surgical morality.

Class III indications for PCI:
silent cardiac ischaemia requiring myocardial revascularization + absence of left main coronary artery disease + three-vessel coronary artery disease + complex coronary lesions + coronary lesion morphology suitable for PCI and CABG + absence of possibility of full functional myocardial revascularization by PCI + SYNTAX score > 22 + low predicted surgical morality,
silent cardiac ischaemia requiring myocardial revascularization + left main coronary artery disease + multi-vessel coronary artery disease + coronary lesion morphology suitable for PCI and CABG + SYNTAX score  > 33 + low predicted surgical morality.