ICD-10-CM category
M46: Other inflammatory spondylopathies
Codes under M46 (Other inflammatory spondylopathies). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| M46.0 | Spinal enthesopathy | — |
| M46.0 | Spinal enthesopathy | — |
| M46.00 | Spinal enthesopathy, site unspecified | ✓ |
| M46.00 | Spinal enthesopathy, site unspecified | ✓ |
| M46.01 | Spinal enthesopathy, occipito-atlanto-axial region | ✓ |
| M46.01 | Spinal enthesopathy, occipito-atlanto-axial region | ✓ |
| M46.1 | Sacroiliitis, not elsewhere classified | ✓ |
| M46.1 | Sacroiliitis, not elsewhere classified | ✓ |
| M46.02 | Spinal enthesopathy, cervical region | ✓ |
| M46.02 | Spinal enthesopathy, cervical region | ✓ |
| M46.2 | Osteomyelitis of vertebra | — |
| M46.2 | Osteomyelitis of vertebra | — |
| M46.03 | Spinal enthesopathy, cervicothoracic region | ✓ |
| M46.03 | Spinal enthesopathy, cervicothoracic region | ✓ |
| M46.3 | Infection of intervertebral disc (pyogenic) | — |
| M46.3 | Infection of intervertebral disc (pyogenic) | — |
| M46.04 | Spinal enthesopathy, thoracic region | ✓ |
| M46.04 | Spinal enthesopathy, thoracic region | ✓ |
| M46.4 | Discitis, unspecified | — |
| M46.4 | Discitis, unspecified | — |
| M46.05 | Spinal enthesopathy, thoracolumbar region | ✓ |
| M46.05 | Spinal enthesopathy, thoracolumbar region | ✓ |
| M46.5 | Other infective spondylopathies | — |
| M46.5 | Other infective spondylopathies | — |
| M46.06 | Spinal enthesopathy, lumbar region | ✓ |
| M46.06 | Spinal enthesopathy, lumbar region | ✓ |
| M46.07 | Spinal enthesopathy, lumbosacral region | ✓ |
| M46.07 | Spinal enthesopathy, lumbosacral region | ✓ |
| M46.08 | Spinal enthesopathy, sacral and sacrococcygeal region | ✓ |
| M46.08 | Spinal enthesopathy, sacral and sacrococcygeal region | ✓ |
| M46.8 | Other specified inflammatory spondylopathies | — |
| M46.8 | Other specified inflammatory spondylopathies | — |
| M46.09 | Spinal enthesopathy, multiple sites in spine | ✓ |
| M46.09 | Spinal enthesopathy, multiple sites in spine | ✓ |
| M46.9 | Unspecified inflammatory spondylopathy | — |
| M46.9 | Unspecified inflammatory spondylopathy | — |
| M46.20 | Osteomyelitis of vertebra, site unspecified | ✓ |
| M46.20 | Osteomyelitis of vertebra, site unspecified | ✓ |
| M46.21 | Osteomyelitis of vertebra, occipito-atlanto-axial region | ✓ |
| M46.21 | Osteomyelitis of vertebra, occipito-atlanto-axial region | ✓ |
| M46.22 | Osteomyelitis of vertebra, cervical region | ✓ |
| M46.22 | Osteomyelitis of vertebra, cervical region | ✓ |
| M46.23 | Osteomyelitis of vertebra, cervicothoracic region | ✓ |
| M46.23 | Osteomyelitis of vertebra, cervicothoracic region | ✓ |
| M46.24 | Osteomyelitis of vertebra, thoracic region | ✓ |
| M46.24 | Osteomyelitis of vertebra, thoracic region | ✓ |
| M46.25 | Osteomyelitis of vertebra, thoracolumbar region | ✓ |
| M46.25 | Osteomyelitis of vertebra, thoracolumbar region | ✓ |
| M46.26 | Osteomyelitis of vertebra, lumbar region | ✓ |
| M46.26 | Osteomyelitis of vertebra, lumbar region | ✓ |
| M46.27 | Osteomyelitis of vertebra, lumbosacral region | ✓ |
| M46.27 | Osteomyelitis of vertebra, lumbosacral region | ✓ |
| M46.28 | Osteomyelitis of vertebra, sacral and sacrococcygeal region | ✓ |
| M46.28 | Osteomyelitis of vertebra, sacral and sacrococcygeal region | ✓ |
| M46.30 | Infection of intervertebral disc (pyogenic), site unspecified | ✓ |
| M46.30 | Infection of intervertebral disc (pyogenic), site unspecified | ✓ |
| M46.31 | Infection of intervertebral disc (pyogenic), occipito-atlanto-axial region | ✓ |
| M46.31 | Infection of intervertebral disc (pyogenic), occipito-atlanto-axial region | ✓ |
| M46.32 | Infection of intervertebral disc (pyogenic), cervical region | ✓ |
| M46.32 | Infection of intervertebral disc (pyogenic), cervical region | ✓ |
| M46.33 | Infection of intervertebral disc (pyogenic), cervicothoracic region | ✓ |
| M46.33 | Infection of intervertebral disc (pyogenic), cervicothoracic region | ✓ |
| M46.34 | Infection of intervertebral disc (pyogenic), thoracic region | ✓ |
| M46.34 | Infection of intervertebral disc (pyogenic), thoracic region | ✓ |
| M46.35 | Infection of intervertebral disc (pyogenic), thoracolumbar region | ✓ |
| M46.35 | Infection of intervertebral disc (pyogenic), thoracolumbar region | ✓ |
| M46.36 | Infection of intervertebral disc (pyogenic), lumbar region | ✓ |
| M46.36 | Infection of intervertebral disc (pyogenic), lumbar region | ✓ |
| M46.37 | Infection of intervertebral disc (pyogenic), lumbosacral region | ✓ |
| M46.37 | Infection of intervertebral disc (pyogenic), lumbosacral region | ✓ |
| M46.38 | Infection of intervertebral disc (pyogenic), sacral and sacrococcygeal region | ✓ |
| M46.38 | Infection of intervertebral disc (pyogenic), sacral and sacrococcygeal region | ✓ |
| M46.39 | Infection of intervertebral disc (pyogenic), multiple sites in spine | ✓ |
| M46.39 | Infection of intervertebral disc (pyogenic), multiple sites in spine | ✓ |
| M46.40 | Discitis, unspecified, site unspecified | ✓ |
| M46.40 | Discitis, unspecified, site unspecified | ✓ |
| M46.41 | Discitis, unspecified, occipito-atlanto-axial region | ✓ |
| M46.41 | Discitis, unspecified, occipito-atlanto-axial region | ✓ |
| M46.42 | Discitis, unspecified, cervical region | ✓ |
| M46.42 | Discitis, unspecified, cervical region | ✓ |
| M46.43 | Discitis, unspecified, cervicothoracic region | ✓ |
| M46.43 | Discitis, unspecified, cervicothoracic region | ✓ |
| M46.44 | Discitis, unspecified, thoracic region | ✓ |
| M46.44 | Discitis, unspecified, thoracic region | ✓ |
| M46.45 | Discitis, unspecified, thoracolumbar region | ✓ |
| M46.45 | Discitis, unspecified, thoracolumbar region | ✓ |
| M46.46 | Discitis, unspecified, lumbar region | ✓ |
| M46.46 | Discitis, unspecified, lumbar region | ✓ |
| M46.47 | Discitis, unspecified, lumbosacral region | ✓ |
| M46.47 | Discitis, unspecified, lumbosacral region | ✓ |
| M46.48 | Discitis, unspecified, sacral and sacrococcygeal region | ✓ |
| M46.48 | Discitis, unspecified, sacral and sacrococcygeal region | ✓ |
| M46.49 | Discitis, unspecified, multiple sites in spine | ✓ |
| M46.49 | Discitis, unspecified, multiple sites in spine | ✓ |
| M46.50 | Other infective spondylopathies, site unspecified | ✓ |
| M46.50 | Other infective spondylopathies, site unspecified | ✓ |
| M46.51 | Other infective spondylopathies, occipito-atlanto-axial region | ✓ |
| M46.51 | Other infective spondylopathies, occipito-atlanto-axial region | ✓ |
| M46.52 | Other infective spondylopathies, cervical region | ✓ |
| M46.52 | Other infective spondylopathies, cervical region | ✓ |
| M46.53 | Other infective spondylopathies, cervicothoracic region | ✓ |
| M46.53 | Other infective spondylopathies, cervicothoracic region | ✓ |
| M46.54 | Other infective spondylopathies, thoracic region | ✓ |
| M46.54 | Other infective spondylopathies, thoracic region | ✓ |
| M46.55 | Other infective spondylopathies, thoracolumbar region | ✓ |
| M46.55 | Other infective spondylopathies, thoracolumbar region | ✓ |
| M46.56 | Other infective spondylopathies, lumbar region | ✓ |
| M46.56 | Other infective spondylopathies, lumbar region | ✓ |
| M46.57 | Other infective spondylopathies, lumbosacral region | ✓ |
| M46.57 | Other infective spondylopathies, lumbosacral region | ✓ |
| M46.58 | Other infective spondylopathies, sacral and sacrococcygeal region | ✓ |
| M46.58 | Other infective spondylopathies, sacral and sacrococcygeal region | ✓ |
| M46.59 | Other infective spondylopathies, multiple sites in spine | ✓ |
| M46.59 | Other infective spondylopathies, multiple sites in spine | ✓ |
| M46.80 | Other specified inflammatory spondylopathies, site unspecified | ✓ |
| M46.80 | Other specified inflammatory spondylopathies, site unspecified | ✓ |
| M46.81 | Other specified inflammatory spondylopathies, occipito-atlanto-axial region | ✓ |
| M46.81 | Other specified inflammatory spondylopathies, occipito-atlanto-axial region | ✓ |
| M46.82 | Other specified inflammatory spondylopathies, cervical region | ✓ |
| M46.82 | Other specified inflammatory spondylopathies, cervical region | ✓ |
| M46.83 | Other specified inflammatory spondylopathies, cervicothoracic region | ✓ |
| M46.83 | Other specified inflammatory spondylopathies, cervicothoracic region | ✓ |
| M46.84 | Other specified inflammatory spondylopathies, thoracic region | ✓ |
| M46.84 | Other specified inflammatory spondylopathies, thoracic region | ✓ |
| M46.85 | Other specified inflammatory spondylopathies, thoracolumbar region | ✓ |
| M46.85 | Other specified inflammatory spondylopathies, thoracolumbar region | ✓ |
| M46.86 | Other specified inflammatory spondylopathies, lumbar region | ✓ |
| M46.86 | Other specified inflammatory spondylopathies, lumbar region | ✓ |
| M46.87 | Other specified inflammatory spondylopathies, lumbosacral region | ✓ |
| M46.87 | Other specified inflammatory spondylopathies, lumbosacral region | ✓ |
| M46.88 | Other specified inflammatory spondylopathies, sacral and sacrococcygeal region | ✓ |
| M46.88 | Other specified inflammatory spondylopathies, sacral and sacrococcygeal region | ✓ |
| M46.89 | Other specified inflammatory spondylopathies, multiple sites in spine | ✓ |
| M46.89 | Other specified inflammatory spondylopathies, multiple sites in spine | ✓ |
| M46.90 | Unspecified inflammatory spondylopathy, site unspecified | ✓ |
| M46.90 | Unspecified inflammatory spondylopathy, site unspecified | ✓ |
| M46.91 | Unspecified inflammatory spondylopathy, occipito-atlanto-axial region | ✓ |
| M46.91 | Unspecified inflammatory spondylopathy, occipito-atlanto-axial region | ✓ |
| M46.92 | Unspecified inflammatory spondylopathy, cervical region | ✓ |
| M46.92 | Unspecified inflammatory spondylopathy, cervical region | ✓ |
| M46.93 | Unspecified inflammatory spondylopathy, cervicothoracic region | ✓ |
| M46.93 | Unspecified inflammatory spondylopathy, cervicothoracic region | ✓ |
| M46.94 | Unspecified inflammatory spondylopathy, thoracic region | ✓ |
| M46.94 | Unspecified inflammatory spondylopathy, thoracic region | ✓ |
| M46.95 | Unspecified inflammatory spondylopathy, thoracolumbar region | ✓ |
| M46.95 | Unspecified inflammatory spondylopathy, thoracolumbar region | ✓ |
| M46.96 | Unspecified inflammatory spondylopathy, lumbar region | ✓ |
| M46.96 | Unspecified inflammatory spondylopathy, lumbar region | ✓ |
| M46.97 | Unspecified inflammatory spondylopathy, lumbosacral region | ✓ |
| M46.97 | Unspecified inflammatory spondylopathy, lumbosacral region | ✓ |
| M46.98 | Unspecified inflammatory spondylopathy, sacral and sacrococcygeal region | ✓ |
| M46.98 | Unspecified inflammatory spondylopathy, sacral and sacrococcygeal region | ✓ |
| M46.99 | Unspecified inflammatory spondylopathy, multiple sites in spine | ✓ |
| M46.99 | Unspecified inflammatory spondylopathy, multiple sites in spine | ✓ |
Frequently asked questions
What is ICD-10-CM code M46?
M46 is an ICD-10-CM category covering Other inflammatory spondylopathies. It contains 154 more specific diagnosis codes, 140 of which are billable.
Is M46 a billable code?
No — M46 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 M46.0 — Spinal enthesopathy). 140 of the 154 codes under M46 are billable.
What codes fall under M46?
M46 includes M46.0, M46.0, M46.00, M46.00, M46.01, plus 149 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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