Table 1: CLUFT grading system.
| Cranial nerve | Grade |
| VIIth nerve partial | 0 |
| VIth and VIIth partial | 1 |
| VIth and VIIth complete | 2 |
| Additional nerve involvement | 3 |
| If bilateral and equal add | B |
| Lower limb | |
| Normal | 0 |
| Talipes equinovarus, syndactyly, ankylosis | 1 |
| Absent phalanges | 2 |
| Longitudinal or transverse deficits | 3 |
| Upper limb | |
| Normal | 0 |
| Digital hypoplasia or failure of differentiation | 1 |
| Ectrodactyly | 2 |
| Failure of formation, longitudinal or transverse | 3 |
| Facial structure | |
| Normal | 0 |
| Cleft palate | 1 |
| Micrognathia | 2 |
| Microtia, microphthalmia, abnormal joint, etc. | 3 |
| Thorax | |
| Normal | 0 |
| Scoliosis | 1 |
| Pectoral hypoplasia or breast anomaly | 2 |
| Chest wall deformity, breast or pectoral aplasia | 3 |