| Code | Definition | Number of Accessions |
| 1 | NO STONE CELLS | 236 |
| 2 | (1 = NO STONE CELLS, 9 = MANY STONE CELLS) | 151 |
| 3 | (1 = NO STONE CELLS, 9 = MANY STONE CELLS) | 194 |
| 4 | (1 = NO STONE CELLS, 9 = MANY STONE CELLS) | 74 |
| 5 | (1 = NO STONE CELLS, 9 = MANY STONE CELLS) | 88 |
| 6 | (1 = NO STONE CELLS, 9 = MANY STONE CELLS) | 33 |
| 7 | (1 = NO STONE CELLS, 9 = MANY STONE CELLS) | 30 |
| 8 | (1 = NO STONE CELLS, 9 = MANY STONE CELLS) | 11 |
| 9 | MANY STONE CELLS | 3 |