- Spine M42.9

-- Adult M42.10

--- Cervical Region M42.12

--- Cervicothoracic Region M42.13

--- Lumbar Region M42.16

--- Lumbosacral Region M42.17

--- Multiple Sites M42.19

--- Occipito-atlanto-axial Region M42.11

--- Sacrococcygeal Region M42.18

--- Thoracic Region M42.14

--- Thoracolumbar Region M42.15

-- Juvenile - see Osteochondrosis, juvenile, spine