ICD-10-CM category
M43: Other deforming dorsopathies
Codes under M43 (Other deforming dorsopathies). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| M43.0 | Spondylolysis | — |
| M43.0 | Spondylolysis | — |
| M43.00 | Spondylolysis, site unspecified | ✓ |
| M43.00 | Spondylolysis, site unspecified | ✓ |
| M43.01 | Spondylolysis, occipito-atlanto-axial region | ✓ |
| M43.01 | Spondylolysis, occipito-atlanto-axial region | ✓ |
| M43.1 | Spondylolisthesis | — |
| M43.1 | Spondylolisthesis | — |
| M43.02 | Spondylolysis, cervical region | ✓ |
| M43.02 | Spondylolysis, cervical region | ✓ |
| M43.2 | Fusion of spine | — |
| M43.2 | Fusion of spine | — |
| M43.03 | Spondylolysis, cervicothoracic region | ✓ |
| M43.03 | Spondylolysis, cervicothoracic region | ✓ |
| M43.3 | Recurrent atlantoaxial dislocation with myelopathy | ✓ |
| M43.3 | Recurrent atlantoaxial dislocation with myelopathy | ✓ |
| M43.04 | Spondylolysis, thoracic region | ✓ |
| M43.04 | Spondylolysis, thoracic region | ✓ |
| M43.4 | Other recurrent atlantoaxial dislocation | ✓ |
| M43.4 | Other recurrent atlantoaxial dislocation | ✓ |
| M43.05 | Spondylolysis, thoracolumbar region | ✓ |
| M43.05 | Spondylolysis, thoracolumbar region | ✓ |
| M43.5 | Other recurrent vertebral dislocation | — |
| M43.5 | Other recurrent vertebral dislocation | — |
| M43.5X | Other recurrent vertebral dislocation | — |
| M43.5X | Other recurrent vertebral dislocation | — |
| M43.5X2 | Other recurrent vertebral dislocation, cervical region | ✓ |
| M43.5X2 | Other recurrent vertebral dislocation, cervical region | ✓ |
| M43.5X3 | Other recurrent vertebral dislocation, cervicothoracic region | ✓ |
| M43.5X3 | Other recurrent vertebral dislocation, cervicothoracic region | ✓ |
| M43.5X4 | Other recurrent vertebral dislocation, thoracic region | ✓ |
| M43.5X4 | Other recurrent vertebral dislocation, thoracic region | ✓ |
| M43.5X5 | Other recurrent vertebral dislocation, thoracolumbar region | ✓ |
| M43.5X5 | Other recurrent vertebral dislocation, thoracolumbar region | ✓ |
| M43.5X6 | Other recurrent vertebral dislocation, lumbar region | ✓ |
| M43.5X6 | Other recurrent vertebral dislocation, lumbar region | ✓ |
| M43.5X7 | Other recurrent vertebral dislocation, lumbosacral region | ✓ |
| M43.5X7 | Other recurrent vertebral dislocation, lumbosacral region | ✓ |
| M43.5X8 | Other recurrent vertebral dislocation, sacral and sacrococcygeal region | ✓ |
| M43.5X8 | Other recurrent vertebral dislocation, sacral and sacrococcygeal region | ✓ |
| M43.5X9 | Other recurrent vertebral dislocation, site unspecified | ✓ |
| M43.5X9 | Other recurrent vertebral dislocation, site unspecified | ✓ |
| M43.06 | Spondylolysis, lumbar region | ✓ |
| M43.06 | Spondylolysis, lumbar region | ✓ |
| M43.6 | Torticollis | ✓ |
| M43.6 | Torticollis | ✓ |
| M43.07 | Spondylolysis, lumbosacral region | ✓ |
| M43.07 | Spondylolysis, lumbosacral region | ✓ |
| M43.08 | Spondylolysis, sacral and sacrococcygeal region | ✓ |
| M43.08 | Spondylolysis, sacral and sacrococcygeal region | ✓ |
| M43.8 | Other specified deforming dorsopathies | — |
| M43.8 | Other specified deforming dorsopathies | — |
| M43.8X | Other specified deforming dorsopathies | — |
| M43.8X | Other specified deforming dorsopathies | — |
| M43.8X1 | Other specified deforming dorsopathies, occipito-atlanto-axial region | ✓ |
| M43.8X1 | Other specified deforming dorsopathies, occipito-atlanto-axial region | ✓ |
| M43.8X2 | Other specified deforming dorsopathies, cervical region | ✓ |
| M43.8X2 | Other specified deforming dorsopathies, cervical region | ✓ |
| M43.8X3 | Other specified deforming dorsopathies, cervicothoracic region | ✓ |
| M43.8X3 | Other specified deforming dorsopathies, cervicothoracic region | ✓ |
| M43.8X4 | Other specified deforming dorsopathies, thoracic region | ✓ |
| M43.8X4 | Other specified deforming dorsopathies, thoracic region | ✓ |
| M43.8X5 | Other specified deforming dorsopathies, thoracolumbar region | ✓ |
| M43.8X5 | Other specified deforming dorsopathies, thoracolumbar region | ✓ |
| M43.8X6 | Other specified deforming dorsopathies, lumbar region | ✓ |
| M43.8X6 | Other specified deforming dorsopathies, lumbar region | ✓ |
| M43.8X7 | Other specified deforming dorsopathies, lumbosacral region | ✓ |
| M43.8X7 | Other specified deforming dorsopathies, lumbosacral region | ✓ |
| M43.8X8 | Other specified deforming dorsopathies, sacral and sacrococcygeal region | ✓ |
| M43.8X8 | Other specified deforming dorsopathies, sacral and sacrococcygeal region | ✓ |
| M43.8X9 | Other specified deforming dorsopathies, site unspecified | ✓ |
| M43.8X9 | Other specified deforming dorsopathies, site unspecified | ✓ |
| M43.09 | Spondylolysis, multiple sites in spine | ✓ |
| M43.09 | Spondylolysis, multiple sites in spine | ✓ |
| M43.9 | Deforming dorsopathy, unspecified | ✓ |
| M43.9 | Deforming dorsopathy, unspecified | ✓ |
| M43.10 | Spondylolisthesis, site unspecified | ✓ |
| M43.10 | Spondylolisthesis, site unspecified | ✓ |
| M43.11 | Spondylolisthesis, occipito-atlanto-axial region | ✓ |
| M43.11 | Spondylolisthesis, occipito-atlanto-axial region | ✓ |
| M43.12 | Spondylolisthesis, cervical region | ✓ |
| M43.12 | Spondylolisthesis, cervical region | ✓ |
| M43.13 | Spondylolisthesis, cervicothoracic region | ✓ |
| M43.13 | Spondylolisthesis, cervicothoracic region | ✓ |
| M43.14 | Spondylolisthesis, thoracic region | ✓ |
| M43.14 | Spondylolisthesis, thoracic region | ✓ |
| M43.15 | Spondylolisthesis, thoracolumbar region | ✓ |
| M43.15 | Spondylolisthesis, thoracolumbar region | ✓ |
| M43.16 | Spondylolisthesis, lumbar region | ✓ |
| M43.16 | Spondylolisthesis, lumbar region | ✓ |
| M43.17 | Spondylolisthesis, lumbosacral region | ✓ |
| M43.17 | Spondylolisthesis, lumbosacral region | ✓ |
| M43.18 | Spondylolisthesis, sacral and sacrococcygeal region | ✓ |
| M43.18 | Spondylolisthesis, sacral and sacrococcygeal region | ✓ |
| M43.19 | Spondylolisthesis, multiple sites in spine | ✓ |
| M43.19 | Spondylolisthesis, multiple sites in spine | ✓ |
| M43.20 | Fusion of spine, site unspecified | ✓ |
| M43.20 | Fusion of spine, site unspecified | ✓ |
| M43.21 | Fusion of spine, occipito-atlanto-axial region | ✓ |
| M43.21 | Fusion of spine, occipito-atlanto-axial region | ✓ |
| M43.22 | Fusion of spine, cervical region | ✓ |
| M43.22 | Fusion of spine, cervical region | ✓ |
| M43.23 | Fusion of spine, cervicothoracic region | ✓ |
| M43.23 | Fusion of spine, cervicothoracic region | ✓ |
| M43.24 | Fusion of spine, thoracic region | ✓ |
| M43.24 | Fusion of spine, thoracic region | ✓ |
| M43.25 | Fusion of spine, thoracolumbar region | ✓ |
| M43.25 | Fusion of spine, thoracolumbar region | ✓ |
| M43.26 | Fusion of spine, lumbar region | ✓ |
| M43.26 | Fusion of spine, lumbar region | ✓ |
| M43.27 | Fusion of spine, lumbosacral region | ✓ |
| M43.27 | Fusion of spine, lumbosacral region | ✓ |
| M43.28 | Fusion of spine, sacral and sacrococcygeal region | ✓ |
| M43.28 | Fusion of spine, sacral and sacrococcygeal region | ✓ |
Frequently asked questions
What is ICD-10-CM code M43?
M43 is an ICD-10-CM category covering Other deforming dorsopathies. It contains 114 more specific diagnosis codes, 100 of which are billable.
Is M43 a billable code?
No — M43 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example M43.0 — Spondylolysis). 100 of the 114 codes under M43 are billable.
What codes fall under M43?
M43 includes M43.0, M43.0, M43.00, M43.00, M43.01, plus 109 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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