ICD-10-CM · Chapter 13 · M00-M99
M43 Other deforming dorsopathies
Excludes 1 (cannot be coded together)
- congenital spondylolysis and spondylolisthesis (Q76.2)
- hemivertebra (Q76.3-Q76.4)
- Klippel-Feil syndrome (Q76.1)
- lumbarization and sacralization (Q76.4)
- platyspondylisis (Q76.4)
- spina bifida occulta (Q76.0)
- spinal curvature in osteoporosis (M80.-)
- spinal curvature in Paget's disease of bone [osteitis deformans] (M88.-)
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| M43..0 | Spondylolysis | No |
| M43..00 | Spondylolysis, site unspecified | Yes |
| M43..01 | Spondylolysis, occipito-atlanto-axial region | Yes |
| M43..02 | Spondylolysis, cervical region | Yes |
| M43..03 | Spondylolysis, cervicothoracic region | Yes |
| M43..04 | Spondylolysis, thoracic region | Yes |
| M43..05 | Spondylolysis, thoracolumbar region | Yes |
| M43..06 | Spondylolysis, lumbar region | Yes |
| M43..07 | Spondylolysis, lumbosacral region | Yes |
| M43..08 | Spondylolysis, sacral and sacrococcygeal region | Yes |
| M43..09 | Spondylolysis, multiple sites in spine | Yes |
| M43..1 | Spondylolisthesis | No |
| M43..10 | Spondylolisthesis, site unspecified | Yes |
| M43..11 | Spondylolisthesis, occipito-atlanto-axial region | Yes |
| M43..12 | Spondylolisthesis, cervical region | Yes |
| M43..13 | Spondylolisthesis, cervicothoracic region | Yes |
| M43..14 | Spondylolisthesis, thoracic region | Yes |
| M43..15 | Spondylolisthesis, thoracolumbar region | Yes |
| M43..16 | Spondylolisthesis, lumbar region | Yes |
| M43..17 | Spondylolisthesis, lumbosacral region | Yes |
| M43..18 | Spondylolisthesis, sacral and sacrococcygeal region | Yes |
| M43..19 | Spondylolisthesis, multiple sites in spine | Yes |
| M43..2 | Fusion of spine | No |
| M43..20 | Fusion of spine, site unspecified | Yes |
| M43..21 | Fusion of spine, occipito-atlanto-axial region | Yes |
| M43..22 | Fusion of spine, cervical region | Yes |
| M43..23 | Fusion of spine, cervicothoracic region | Yes |
| M43..24 | Fusion of spine, thoracic region | Yes |
| M43..25 | Fusion of spine, thoracolumbar region | Yes |
| M43..26 | Fusion of spine, lumbar region | Yes |
| M43..27 | Fusion of spine, lumbosacral region | Yes |
| M43..28 | Fusion of spine, sacral and sacrococcygeal region | Yes |
| M43..3 | Recurrent atlantoaxial dislocation with myelopathy | Yes |
| M43..4 | Other recurrent atlantoaxial dislocation | Yes |
| M43..5 | Other recurrent vertebral dislocation | No |
| M43..5X | Other recurrent vertebral dislocation | No |
| M43..5X2 | Other recurrent vertebral dislocation, cervical region | Yes |
| M43..5X3 | Other recurrent vertebral dislocation, cervicothoracic region | Yes |
| M43..5X4 | Other recurrent vertebral dislocation, thoracic region | Yes |
| M43..5X5 | Other recurrent vertebral dislocation, thoracolumbar region | Yes |
| M43..5X6 | Other recurrent vertebral dislocation, lumbar region | Yes |
| M43..5X7 | Other recurrent vertebral dislocation, lumbosacral region | Yes |
| M43..5X8 | Other recurrent vertebral dislocation, sacral and sacrococcygeal region | Yes |
| M43..5X9 | Other recurrent vertebral dislocation, site unspecified | Yes |
| M43..6 | Torticollis | Yes |
| M43..8 | Other specified deforming dorsopathies | No |
| M43..8X | Other specified deforming dorsopathies | No |
| M43..8X1 | Other specified deforming dorsopathies, occipito-atlanto-axial region | Yes |
| M43..8X2 | Other specified deforming dorsopathies, cervical region | Yes |
| M43..8X3 | Other specified deforming dorsopathies, cervicothoracic region | Yes |
| M43..8X4 | Other specified deforming dorsopathies, thoracic region | Yes |
| M43..8X5 | Other specified deforming dorsopathies, thoracolumbar region | Yes |
| M43..8X6 | Other specified deforming dorsopathies, lumbar region | Yes |
| M43..8X7 | Other specified deforming dorsopathies, lumbosacral region | Yes |
| M43..8X8 | Other specified deforming dorsopathies, sacral and sacrococcygeal region | Yes |
| M43..8X9 | Other specified deforming dorsopathies, site unspecified | Yes |
| M43..9 | Deforming dorsopathy, unspecified | Yes |
Last reviewed: September 2026