| M429 | Spinal osteochondrosis, unspecified |
| M43 | Other deforming dorsopathies |
| M430 | Spondylolysis |
| M4300 | Spondylolysis, site unspecified |
| M4301 | Spondylolysis, occipito-atlanto-axial region |
| M4302 | Spondylolysis, cervical region |
| M4303 | Spondylolysis, cervicothoracic region |
| M4304 | Spondylolysis, thoracic region |
| M4305 | Spondylolysis, thoracolumbar region |
| M4306 | Spondylolysis, lumbar region |
| M4307 | Spondylolysis, lumbosacral region |
| M4308 | Spondylolysis, sacral and sacrococcygeal region |
| M4309 | Spondylolysis, multiple sites in spine |
| M431 | Spondylolisthesis |
| M4310 | Spondylolisthesis, site unspecified |
| M4311 | Spondylolisthesis, occipito-atlanto-axial region |
| M4312 | Spondylolisthesis, cervical region |
| M4313 | Spondylolisthesis, cervicothoracic region |
| M4314 | Spondylolisthesis, thoracic region |
| M4315 | Spondylolisthesis, thoracolumbar region |
| M4316 | Spondylolisthesis, lumbar region |
| M4317 | Spondylolisthesis, lumbosacral region |
| M4318 | Spondylolisthesis, sacral and sacrococcygeal region |
| M4319 | Spondylolisthesis, multiple sites in spine |
| M432 | Fusion of spine |
| M4320 | Fusion of spine, site unspecified |
| M4321 | Fusion of spine, occipito-atlanto-axial region |
| M4322 | Fusion of spine, cervical region |
| M4323 | Fusion of spine, cervicothoracic region |
| M4324 | Fusion of spine, thoracic region |
| M4325 | Fusion of spine, thoracolumbar region |
| M4326 | Fusion of spine, lumbar region |
| M4327 | Fusion of spine, lumbosacral region |
| M4328 | Fusion of spine, sacral and sacrococcygeal region |
| M433 | Recurrent atlantoaxial dislocation with myelopathy |
| M434 | Other recurrent atlantoaxial dislocation |
| M435 | Other recurrent vertebral dislocation |
| M435X | Other recurrent vertebral dislocation |
| M435X2 | Other recurrent vertebral dislocation, cervical region |
| M435X3 | Other recurrent vertebral dislocation, cervicothoracic region |
| M435X4 | Other recurrent vertebral dislocation, thoracic region |
| M435X5 | Other recurrent vertebral dislocation, thoracolumbar region |
| M435X6 | Other recurrent vertebral dislocation, lumbar region |
| M435X7 | Other recurrent vertebral dislocation, lumbosacral region |
| M435X8 | Other recurrent vertebral dislocation, sacral and sacrococcygeal region |
| M435X9 | Other recurrent vertebral dislocation, site unspecified |
| M436 | Torticollis |
| M438 | Other specified deforming dorsopathies |
| M438X | Other specified deforming dorsopathies |
| M438X1 | Other specified deforming dorsopathies, occipito-atlanto-axial region |