Appendix 1.
Diagnosis and procedure codes used for analysis
| Variable type | Variable | ICD-9 diagnostic codes |
ICD-9 procedure codes |
CPT | HCPCS | BETOS | CEN | DRG |
|---|---|---|---|---|---|---|---|---|
| Diagnosis | Multiple myeloma | 203.xx | ||||||
| Plasmacytoma | 238.6 | |||||||
| Exclusion | Amyloidosis | 277.3x | ||||||
| Sign or symptom |
Anemia codes | 280.0–280.1, 281.1–281.2, 283.xx, 285.2x, 285.9 |
||||||
| Back pain | 307.89, 724.2, 724.5 | |||||||
| PRBC transfusion | 99.03, 99.04 |
36430 | ||||||
| U/S PEP | 84156; 84165; 84181; 84182 |
|||||||
| Bone marrow biopsy | 41.31 | 20220, 20225, 20240, 20245, 85095, 85102 |
||||||
| Bone scan/skeletal survey |
92.14 | 76061, 76062, 78300, 78305, 78306, 78315, 78320 |
||||||
| Treatment | Bisphosphonates | J2430, J3487 | ||||||
| Complication | Skeletal Complication | 800–829 | ||||||
| Cord compression | 336.9 | |||||||
| Renal dysfunction | 580.xx-584.xx; 586 | |||||||
| Exclusion (pre-dx); Treatment (post-dx) |
XRT procedure Chemotherapy procedure |
V58.0, V66.1, V67.1 E930.7, E933.1, V58.1, V66.2, V67.2 |
92.2x 99.25 |
77xxx, 79xxx 964xx, 9651x, 9652x, 9653x, 9654x |
S8049 C1166, C1167, C1178, C9110, C9205, C9207, C9213-C9216, C9411, C9414-C9419, C942x, C9430-C9438, G0355, G0356, G0359-G0362, J7150, J85xx-J87xx, J8999, J9xxx, Q0083-Q0085, S9325-S9329, S933x-S937x, S9494-S9497 |
P7A O1D |
0330, 0333, 0339 0331, 0332, 0335 |
409 410 |
ICD-9, international classification of diseases, ninth revision; HCPCS, health care procedure coding system; CPT, current procedural terminology; BETOS, Berenson-Eggers type of service; CEN, revenue center code; DRG, diagnosis-related group; U/S PEP, urine or serum protein electrophoresis; PRBC, packed red blood cell.