Surgical Variables
Surgical approach
Laparoscopic	17.3, 17.31–17.39
Open	45.7, 45.71–45.79
Conversion	V64.40, V64.41
Anatomic resection
Right hemi-colectomy	17.32, 17.33, 45.72, 45.73
Left hemi-colectomy	17.35, 17.36, 45.75, 45.76
Other colectomy
Total colectomy	45.8, 45.81–45.83
Transverse colectomy	17.34, 45.74
Multiple segment	17.31, 45.71
Not specified resection	17.39, 45.79
Other diagnostic and procedural variables
Colon cancer	230.3, 153.0–153.9 (excluding 153.5)
In-situ disease	230.3
Node positive disease	196, 196.0–196.9
Metastatic disease	197, 197.0–197.8, 198, 198.0–198.8, 198.81, 198.82, 198.89, 199.1
Intra- and post-operative morbidity
Post-operative morbidity
Mechanical Wound	998.12, 998.13, 998.31, 998.32, 998.6, 998.83
Infectious	038.0–038.9, 790.7, 998.5, 998.51, 998.59
Urinary	997.5
Pulmonary	512.2, 518.5, 518.4, 518.81, 518.82, 997.3
Gastrointestinal	560.1, 997.4
Cardiovascular	410.0–410.9, 415.11, 427.5, 453.40–453.42, 453.8–453.9, 997.02, 997.1, 998
Intra-operative morbidity
Accidental puncture or laceration during a procedure	998.2
Hemorrhage complicating a procedure	998.11