Table 1 Comorbidities, risk factors and procedures with corresponding ICD-9-CM codes

Current smoking

305.1, V15.82

Obesity

278.xx

Hypertension

401, 401.0, 401.1, 401.9

Lipid metabolism disorders

272.4

Renal disease

403.01, 403.11, 403.91, 404.02, 404.03, 404.12, 404.13, 404.92, 404.93, 582.x, 583.0–583.7, 585.x, 586.x, 588.0, V42.0, V45.1, V56.x

Atrial fibrillation

427.31

Congestive heart failure

398.91, 402.01, 402.11, 402.91, 404.01, 404.03, 404.11, 404.13, 404.91, 404.93, 425.4–425.9, 428.x

Mechanical ventilation

96.7, 96.70, 96.71, 96.72

Hemodyalisis/peritoneal dialysis

39.95, 54.98

Fibrinolysis

99.10

Coronary artery bypass graft (CABG)

36.10–36.19

Percutaneous coronary intervention (PCI)

36.04, 36.06, 36.07, 36.09, 0.66

Decompressive craniectomy

01.24

Carotid endarterectomy

38.11, 38.12

Carotid angioplasty

00.61, 00.62, 00.63, 00.64, 00.65

Thoracic aorta aneurysm open surgery

38.35, 38.45

Endovascular implantation of graft in thoracic aorta (TEVAR)

39.73

Abdominal aorta aneurysm open surgery

38.44

Endovascular implantation of graft in abdominal aorta (EVAR)

39.71

Minor amputation (any lower extremity amputation distal to the ankle joint)

84.10–84.12

Major amputation (any lower extremity amputation through or proximal to the ankle joint)

84.13–84.17

Lower extremity revascularization

39.25, 39.29, 38.38, 38.48

Lower extremity angioplasty

00.60, 39.50