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Table 2 Codes used to identify the cardiac surgery and selection procedures for the study population

From: Patient mobility for cardiac problems: a risk-adjusted analysis in Italy

Description ICD 9 CM codes
By-pass 36.03; 36.10 - 36.17; 36.19; 36.01 - 36.02; 36.05
Other interventions for revascularization 36.04; 36.09; 36.2; 36.3
Operations on valves 35.10 - 35.14; 35.20 - 35.28; 35.33; 35.00 - 35.04; 35.99
Operations on the aorta 38.34; 38.45; 39.54
Heart Transplant 37.51
Other main procedures 35.41 - 35.42; 35.50 - 35.54; 35.61 - 35.63; 35.70 - 35.72; 35.31; 35.32; 35.34; 35.35; 35.39; 35.9; 35.98; 36.91; 36.99; 37.10 - 37.12; 37.31 - 37.33; 37.35; 37.4; 37.94; 37.99; 38.04 - 38.05; 38.14 - 38.15; 38.35; 38.41; 38.65; 38.85; 39.21 - 39.23; 39.52; 39.57; 39.59
Procedures associated 34.03; 34.91; 37.00; 37.21 - 37.23; 37.26; 37.61-37.62; 37.70; 37.72; 37.78; 37.80; 37.83; 37.85; 37.87; 37.95; 38.91; 38.93; 39.61; 88.42 - 88.44; 88.50; 88.52 - 88.57
Other diagnostic or therapeutic procedures on the heart 37.24 - 37.25; 37.29; 37.63 - 37.64; 37.71; 37.73 - 37.77; 37.79; 37.81 - 37.82; 37.84; 37.86; 37.88 - 37.89; 37.91; 37.93; 37.98
Other operations on vessels 38.06 - 38.08; 38.10 - 38.13; 38.16 - 38.18; 38.36 - 38.40; 38.42 - 38.44; 38.46 - 38.48; 38.50; 38.53; 38.55; 38.59; 38.60 - 38.64; 38.66 - 38.69; 38.7; 38.80 - 38.84; 38.92; 38.94 - 38.99; 39.0; 39.1; 39.24 - 39.31; 39.41 - 39.51; 39.53; 39.55 - 39.56; 39.58; 39.60 - 39.66; 39.7; 39.71; 39.79; 39.8; 39.91 - 39.99
Accessory procedures 88.72 - 88.73; 88.92; 89.37; 89.43; 89.45; 89.43; 89.45; 89.50 - 89.52; 89.61; 89.64 - 89.65