| Code Value | Definition |
|---|---|
| 320 | Cores |
| 321 | Deltas |
| 323 | Center Point of Reference |
| 324 | Distinctive Characteristics |
| 331 | Minutiae |
| 340 | Dots |
| 341 | Incipient Ridges |
| 342 | Creases and Linear Discontinuities |
| 343 | Ridge Edge Features |
| 345 | Pores |
| 357 | Local Quality Issues |
| 373 | Ridge Path Segment |