16. Level 2 code: 91-A-m-B. Bilateral double fracture: Right angle combined with
body region on the left. Both fracture lines are confined to the transitional zones.
17. Level 2 code: 91-P-m-B. Double mandible fracture: Body and contralateral
condylar process.
18. Level 2 code: 91-m-B. Unilateral double mandible fracture within the anterior
and posterior body.
19. 0 = No atrophy, original height vertical height > 20 mm
1 = Mild atrophy vertical height > 15 to 20 mm (Luhr Class I)
2 = Moderate atrophy vertical height > 10 to 15 mm (Luhr Class II)
3 = Severe atrophy vertical height 10 mm (Luhr Class III)