Schedule of ratings-dental and oral conditions.

§ 4.150 Schedule of ratings—dental and oral conditions. Rating 9900Maxilla or mandible, chronic osteomyelitis or osteoradionecrosis of: Rate as osteomyelitis, chronic under diagnostic code 5000 9901Mandible, loss of, complete, between angles 100 9902Mandible, loss of approximately one-half: Involving temporomandibular articulation 50 Not involving temporomandibular articulation 30 9903Mandible, nonunion of: Severe 30 Moderate 10 Note—Dependent upon degree of motion and relative loss of masticatory function 9904Mandible, malunion of: Severe displacement 20 Moderate displacement 10 Slight displacement 0 Note—Dependent upon degree of motion and relative loss of masticatory function 9905Temporomandibular articulation, limited motion of: Inter-incisal range: 0 to 10 mm 40 11 to 20 mm 30 21 to 30 mm 20 31 to 40 mm 10 Range of lateral excursion: 0 to 4 mm 10 Note—Ratings for limited inter-incisal movement shall not be combined with ratings for limited lateral excursion 9906Ramus, loss of whole or part of: Involving loss of temporomandibular articulation Bilateral 50 Unilateral 30 Not involving loss of temporomandibular articulation Bilateral 30 Unilateral 20 9907Ramus, loss of less than one-half the substance of, not involving loss of continuity: Bilateral 20 Unilateral 10 9908Condyloid process, loss of, one or both sides 30 9909Coronoid process, loss of: Bilateral 20 Unilateral 10 9911Hard palate, loss of half or more: Not replaceable by prosthesis 30 Replaceable by prosthesis 10 9912Hard palate, loss of less than half of: Not replaceable by prosthesis 20 Replaceable by prosthesis 0 9913Teeth, loss of, due to loss of substance of body of maxilla or mandible without loss of continuity: Where the lost masticatory surface cannot be restored by suitable prosthesis: Loss of all teeth 40 Loss of all upper teeth 30 Loss of all lower teeth 30 All upper and lower posterior teeth missing 20 All upper and lower anterior teeth missing 20 All upper anterior teeth missing 10 All lower anterior teeth missing 10 All upper and lower teeth on one side missing 10 Where the loss of masticatory surface can be restored by suitable prosthesis 0 Note—These ratings apply only to bone loss through trauma or disease such as osteomyelitis, and not to the loss of the alveolar process as a result of periodontal disease, since such loss is not considered disabling 9914Maxilla, loss of more than half: Not replaceable by prosthesis 100 Replaceable by prosthesis 50 9915Maxilla, loss of half or less: Loss of 25 to 50 percent: Not replaceable by prosthesis 40 Replaceable by prosthesis 30 Loss of less than 25 percent: Not replaceable by prosthesis 20 Replaceable by prosthesis 0 9916Maxilla, malunion or nonunion of: Severe displacement 30 Moderate displacement 10 Slight displacement 0 [59 FR 2530, Jan. 18, 1994]