Table 1.
Procedure codes used in this analysis
| Procedure | ICD-9 Procedure Codes | CPT Codes | DRG Codes | Time Interval |
|---|---|---|---|---|
| Mastectomy | 85.3, 85.33-85.36, 85.4, 85.41-85.48, V51.0 | 19180, 19182, 19200, 19240, 19303-19307 | 257, 258, 582, 583 | Breast cancer diagnosis date + 6 months/Any mastectomy occurring during diagnosis years 2005-2009α |
| Breast conserving surgery | 85.22, 85.23 | 19160, 19162, 19301, 19302 | 259, 260 | Any BCS occurring during diagnosis years 2005-2009α |
| Reconstruction | ||||
| Implant | 85.33, 85.35, 85.53, 85.54, 85.6, 85.89, 85.93-85.95 | 19340, 19342 | Mastectomy + 6 months | |
| Flap | 85.7, 85.70-85.76, 85.79, 85.82-85.85, 85.87, 86.60, 86.70, 86.72, 86.74, 86.75 | Mastectomy + 6 months | ||
| Tissue Expander | 85.96 | 19357 | Mastectomy + 6 months | |
| Autologous | 19350, 19361, 19364, 19366-19369 | Mastectomy + 6 months |
Abbreviations: CPT, current procedural terminology; ICD, International Classification of Diseases; DRG, Diagnosis Related Groups.
αTime frame for calculation of breast surgery volume.