M51.1 – Thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with radiculopathy
ICD-10-CM 2027 diagnosis code · Other dorsopathies
- Code
M51.1(claims format:M511)- Description
- Thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with radiculopathy
- Short description
- Thor, thrclm & lumbosacr intvrt disc disord w radiculopathy
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 13. Diseases of the musculoskeletal system and connective tissue (M00-M99)
- Block
- M50-M54 Other dorsopathies
- Parent codes
- M51
Billable codes under M51.1
M51.1 is a header code and cannot be used on claims. Choose the most specific code:
- M51.14 – Intervertebral disc disorders with radiculopathy, thoracic regionBillable
- M51.15 – Intervertebral disc disorders with radiculopathy, thoracolumbar regionBillable
- M51.16 – Intervertebral disc disorders with radiculopathy, lumbar regionBillable
- M51.17 – Intervertebral disc disorders with radiculopathy, lumbosacral regionBillable
Notes for M51.1
- Sciatica due to intervertebral disc disorder
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
M51 – Thoracic, thoracolumbar, and lumbosacral intervertebral disc disorders
Block M50-M54
- current injury - see injury of spine by body region
- discitis NOS (M46.4-)
Related codes in M51
- M51.0 – Thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with myelopathyHeader
- M51.2 – Other thoracic, thoracolumbar and lumbosacral intervertebral disc displacementHeader
- M51.3 – Other thoracic, thoracolumbar and lumbosacral intervertebral disc degenerationHeader
- M51.4 – Schmorl's nodesHeader
- M51.8 – Other thoracic, thoracolumbar and lumbosacral intervertebral disc disordersHeader
- M51.9 – Unspecified thoracic, thoracolumbar and lumbosacral intervertebral disc disorderBillable
- M51.A – Other lumbar and lumbosacral annulus fibrosus disc defectsHeader
Frequently asked questions
What is ICD-10 code M51.1?
M51.1 is the ICD-10-CM code for thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with radiculopathy, in the block M50-M54 (Other dorsopathies).
Is M51.1 a billable code?
No. M51.1 is a header code with more specific child codes; report one of the billable codes listed above.
What category does M51.1 belong to?
It belongs to category M51 – Thoracic, thoracolumbar, and lumbosacral intervertebral disc disorders.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.