| 9900 | Maxilla or mandible, chronic osteomyelitis, osteonecrosis or osteoradionecrosis of9900 | formula |
| 9901 | Mandible, loss of, complete, between angles9901 | 1 |
| 9902 | Mandible, loss of, including ramus, unilaterally or bilaterally9902 | 6 |
| 9903 | Mandible, nonunion of, confirmed by diagnostic imaging studies9903 | 2 |
| 9904 | Mandible, malunion of9904 | 3 |
| 9905 | Temporomandibular disorder (TMD)9905 | 5 |
| 9908 | Condyloid process, loss of, one or both sides9908 | 1 |
| 9909 | Coronoid process, loss of9909 | formula |
| 9911 | Hard palate, loss of9911 | 4 |
| 9913 | Teeth, loss of, due to loss of substance of body of maxilla or mandible without loss of continuity9913 | 4 |
| 9914 | Maxilla, loss of more than half9914 | 2 |
| 9915 | Maxilla, loss of half or less9915 | 4 |
| 9916 | Maxilla, malunion or nonunion of9916 | 3 |
| 9917 | Neoplasm, hard and soft tissue, benign9917 | formula |
| 9918 | Neoplasm, hard and soft tissue, malignant9918 | 1 |