ICD-10-CM category
M51: Thoracic, thoracolumbar, and lumbosacral intervertebral disc disorders
Codes under M51 (Thoracic, thoracolumbar, and lumbosacral intervertebral disc disorders). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| M51.0 | Thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with myelopathy | — |
| M51.0 | Thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with myelopathy | — |
| M51.1 | Thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with radiculopathy | — |
| M51.1 | Thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with radiculopathy | — |
| M51.2 | Other thoracic, thoracolumbar and lumbosacral intervertebral disc displacement | — |
| M51.2 | Other thoracic, thoracolumbar and lumbosacral intervertebral disc displacement | — |
| M51.3 | Other thoracic, thoracolumbar and lumbosacral intervertebral disc degeneration | — |
| M51.3 | Other thoracic, thoracolumbar and lumbosacral intervertebral disc degeneration | — |
| M51.04 | Intervertebral disc disorders with myelopathy, thoracic region | ✓ |
| M51.04 | Intervertebral disc disorders with myelopathy, thoracic region | ✓ |
| M51.4 | Schmorl's nodes | — |
| M51.4 | Schmorl's nodes | — |
| M51.05 | Intervertebral disc disorders with myelopathy, thoracolumbar region | ✓ |
| M51.05 | Intervertebral disc disorders with myelopathy, thoracolumbar region | ✓ |
| M51.06 | Intervertebral disc disorders with myelopathy, lumbar region | ✓ |
| M51.06 | Intervertebral disc disorders with myelopathy, lumbar region | ✓ |
| M51.8 | Other thoracic, thoracolumbar and lumbosacral intervertebral disc disorders | — |
| M51.8 | Other thoracic, thoracolumbar and lumbosacral intervertebral disc disorders | — |
| M51.9 | Unspecified thoracic, thoracolumbar and lumbosacral intervertebral disc disorder | ✓ |
| M51.9 | Unspecified thoracic, thoracolumbar and lumbosacral intervertebral disc disorder | ✓ |
| M51.14 | Intervertebral disc disorders with radiculopathy, thoracic region | ✓ |
| M51.14 | Intervertebral disc disorders with radiculopathy, thoracic region | ✓ |
| M51.15 | Intervertebral disc disorders with radiculopathy, thoracolumbar region | ✓ |
| M51.15 | Intervertebral disc disorders with radiculopathy, thoracolumbar region | ✓ |
| M51.16 | Intervertebral disc disorders with radiculopathy, lumbar region | ✓ |
| M51.16 | Intervertebral disc disorders with radiculopathy, lumbar region | ✓ |
| M51.17 | Intervertebral disc disorders with radiculopathy, lumbosacral region | ✓ |
| M51.17 | Intervertebral disc disorders with radiculopathy, lumbosacral region | ✓ |
| M51.24 | Other intervertebral disc displacement, thoracic region | ✓ |
| M51.24 | Other intervertebral disc displacement, thoracic region | ✓ |
| M51.25 | Other intervertebral disc displacement, thoracolumbar region | ✓ |
| M51.25 | Other intervertebral disc displacement, thoracolumbar region | ✓ |
| M51.26 | Other intervertebral disc displacement, lumbar region | ✓ |
| M51.26 | Other intervertebral disc displacement, lumbar region | ✓ |
| M51.27 | Other intervertebral disc displacement, lumbosacral region | ✓ |
| M51.27 | Other intervertebral disc displacement, lumbosacral region | ✓ |
| M51.34 | Other intervertebral disc degeneration, thoracic region | ✓ |
| M51.34 | Other intervertebral disc degeneration, thoracic region | ✓ |
| M51.35 | Other intervertebral disc degeneration, thoracolumbar region | ✓ |
| M51.35 | Other intervertebral disc degeneration, thoracolumbar region | ✓ |
| M51.36 | Other intervertebral disc degeneration, lumbar region | — |
| M51.36 | Other intervertebral disc degeneration, lumbar region | — |
| M51.37 | Other intervertebral disc degeneration, lumbosacral region | — |
| M51.37 | Other intervertebral disc degeneration, lumbosacral region | — |
| M51.44 | Schmorl's nodes, thoracic region | ✓ |
| M51.44 | Schmorl's nodes, thoracic region | ✓ |
| M51.45 | Schmorl's nodes, thoracolumbar region | ✓ |
| M51.45 | Schmorl's nodes, thoracolumbar region | ✓ |
| M51.46 | Schmorl's nodes, lumbar region | ✓ |
| M51.46 | Schmorl's nodes, lumbar region | ✓ |
| M51.47 | Schmorl's nodes, lumbosacral region | ✓ |
| M51.47 | Schmorl's nodes, lumbosacral region | ✓ |
| M51.84 | Other intervertebral disc disorders, thoracic region | ✓ |
| M51.84 | Other intervertebral disc disorders, thoracic region | ✓ |
| M51.85 | Other intervertebral disc disorders, thoracolumbar region | ✓ |
| M51.85 | Other intervertebral disc disorders, thoracolumbar region | ✓ |
| M51.86 | Other intervertebral disc disorders, lumbar region | ✓ |
| M51.86 | Other intervertebral disc disorders, lumbar region | ✓ |
| M51.87 | Other intervertebral disc disorders, lumbosacral region | ✓ |
| M51.87 | Other intervertebral disc disorders, lumbosacral region | ✓ |
| M51.360 | Other intervertebral disc degeneration, lumbar region with discogenic back pain only | ✓ |
| M51.360 | Other intervertebral disc degeneration, lumbar region with discogenic back pain only | ✓ |
| M51.361 | Other intervertebral disc degeneration, lumbar region with lower extremity pain only | ✓ |
| M51.361 | Other intervertebral disc degeneration, lumbar region with lower extremity pain only | ✓ |
| M51.362 | Other intervertebral disc degeneration, lumbar region with discogenic back pain and lower extremity pain | ✓ |
| M51.362 | Other intervertebral disc degeneration, lumbar region with discogenic back pain and lower extremity pain | ✓ |
| M51.369 | Other intervertebral disc degeneration, lumbar region without mention of lumbar back pain or lower extremity pain | ✓ |
| M51.369 | Other intervertebral disc degeneration, lumbar region without mention of lumbar back pain or lower extremity pain | ✓ |
| M51.370 | Other intervertebral disc degeneration, lumbosacral region with discogenic back pain only | ✓ |
| M51.370 | Other intervertebral disc degeneration, lumbosacral region with discogenic back pain only | ✓ |
| M51.371 | Other intervertebral disc degeneration, lumbosacral region with lower extremity pain only | ✓ |
| M51.371 | Other intervertebral disc degeneration, lumbosacral region with lower extremity pain only | ✓ |
| M51.372 | Other intervertebral disc degeneration, lumbosacral region with discogenic back pain and lower extremity pain | ✓ |
| M51.372 | Other intervertebral disc degeneration, lumbosacral region with discogenic back pain and lower extremity pain | ✓ |
| M51.379 | Other intervertebral disc degeneration, lumbosacral region without mention of lumbar back pain or lower extremity pain | ✓ |
| M51.379 | Other intervertebral disc degeneration, lumbosacral region without mention of lumbar back pain or lower extremity pain | ✓ |
| M51.A | Other lumbar and lumbosacral annulus fibrosus disc defects | — |
| M51.A | Other lumbar and lumbosacral annulus fibrosus disc defects | — |
| M51.A0 | Intervertebral annulus fibrosus defect, lumbar region, unspecified size | ✓ |
| M51.A0 | Intervertebral annulus fibrosus defect, lumbar region, unspecified size | ✓ |
| M51.A1 | Intervertebral annulus fibrosus defect, small, lumbar region | ✓ |
| M51.A1 | Intervertebral annulus fibrosus defect, small, lumbar region | ✓ |
| M51.A2 | Intervertebral annulus fibrosus defect, large, lumbar region | ✓ |
| M51.A2 | Intervertebral annulus fibrosus defect, large, lumbar region | ✓ |
| M51.A3 | Intervertebral annulus fibrosus defect, lumbosacral region, unspecified size | ✓ |
| M51.A3 | Intervertebral annulus fibrosus defect, lumbosacral region, unspecified size | ✓ |
| M51.A4 | Intervertebral annulus fibrosus defect, small, lumbosacral region | ✓ |
| M51.A4 | Intervertebral annulus fibrosus defect, small, lumbosacral region | ✓ |
| M51.A5 | Intervertebral annulus fibrosus defect, large, lumbosacral region | ✓ |
| M51.A5 | Intervertebral annulus fibrosus defect, large, lumbosacral region | ✓ |
Frequently asked questions
What is ICD-10-CM code M51?
M51 is an ICD-10-CM category covering Thoracic, thoracolumbar, and lumbosacral intervertebral disc disorders. It contains 90 more specific diagnosis codes, 72 of which are billable.
Is M51 a billable code?
No — M51 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 M51.0 — Thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with myelopathy). 72 of the 90 codes under M51 are billable.
What codes fall under M51?
M51 includes M51.0, M51.0, M51.1, M51.1, M51.2, plus 85 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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