| Code | Display |
| 1 | Stage I with All of the following: (1) Hb > 10 g/dL (2) Serum calcium normal < 12 mg/dL (3) Bone x-ray: normal bone structure or solitary bone plasmacytoma only (4) Low M-component production rate, IgG value < 5g/dL, IgA value < 3 g/dL, Bence Jones protein < 4 g/24 h |
| 2 | Stage II: Neither stage l nor stage lll |
| 3 | Stage III with one or more of the following: (1) Hb < 8.5 g/dL (2) Serum calcium > 12 mg/dL (3) Advanced lytic bone lesions (4) High M-component production rate, IgG value > 7 g/dL, IgA value > 5 g/dL, Bence Jones protein > 12 g/24 h |