| Sub-classification | Description |
| M47.0 | Anterior spinal and vertebral artery compression syndromes |
| M47.00 | Multiple sites in spine |
| M47.01 | Occipito-atlanto-axial region |
| M47.02 | Cervical region |
| M47.03 | Cervicothoracic region |
| M47.04 | Thoracic region |
| M47.05 | Thoracolumbar region |
| M47.06 | Lumbar region |
| M47.07 | Lumbosacral region |
| M47.08 | Sacral and sacrococcygeal region |
| M47.09 | Site unspecified |
| M47.1 | Other spondylosis with myelopathy |
| M47.10 | Multiple sites in spine |
| M47.11 | Occipito-atlanto-axial region |
| M47.12 | Cervical region |
| M47.13 | Cervicothoracic region |
| M47.14 | Thoracic region |
| M47.15 | Thoracolumbar region |
| M47.16 | Lumbar region |
| M47.17 | Lumbosacral region |
| M47.18 | Sacral and sacrococcygeal region |
| M47.19 | Site unspecified |
| M47.2 | Other spondylosis with radiculopathy |
| M47.20 | Multiple sites in spine |
| M47.21 | Occipito-atlanto-axial region |
| M47.22 | Cervical region |
| M47.23 | Cervicothoracic region |
| M47.24 | Thoracic region |
| M47.25 | Thoracolumbar region |
| M47.26 | Lumbar region |
| M47.27 | Lumbosacral region |
| M47.28 | Sacral and sacrococcygeal region |
| M47.29 | Site unspecified |
| M47.8 | Other spondylosis |
| M47.80 | Multiple sites in spine |
| M47.81 | Occipito-atlanto-axial region |
| M47.82 | Cervical region |
| M47.83 | Cervicothoracic region |
| M47.84 | Thoracic region |
| M47.85 | Thoracolumbar region |
| M47.86 | Lumbar region |
| M47.87 | Lumbosacral region |
| M47.88 | Sacral and sacrococcygeal region |
| M47.89 | Site unspecified |
| M47.9 | Spondylosis, unspecified |
| M47.90 | Multiple sites in spine |
| M47.91 | Occipito-atlanto-axial region |
| M47.92 | Cervical region |
| M47.93 | Cervicothoracic region |
| M47.94 | Thoracic region |
| M47.95 | Thoracolumbar region |
| M47.96 | Lumbar region |
| M47.97 | Lumbosacral region |
| M47.98 | Sacral and sacrococcygeal region |
| M47.99 | Site unspecified |