- Vertebra M46.20

-- Cervical Region M46.22

-- Cervicothoracic Region M46.23

-- Lumbar Region M46.26

-- Lumbosacral Region M46.27

-- Occipito-atlanto-axial Region M46.21

-- Sacrococcygeal Region M46.28

-- Thoracic Region M46.24

-- Thoracolumbar Region M46.25