M51
⚠ Non-billable (Header)Thoracic, thoracolumbar, and lumbosacral intervertebral disc disorders
Diseases of the musculoskeletal system and connective tissue (M00-M99)
⚠️ This is a category header code — not billable. Use a more specific child code below.
⚠️ Excludes2
directMay be coded together if both conditions coexist
- • cervical and cervicothoracic disc disorders (M50.-)
- • sacral and sacrococcygeal disorders (M53.3)
Child Codes (8)
M51.0Thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with myelopathyM51.1Thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with radiculopathyM51.2Other thoracic, thoracolumbar and lumbosacral intervertebral disc displacementM51.3Other thoracic, thoracolumbar and lumbosacral intervertebral disc degenerationM51.4Schmorl's nodesM51.8Other thoracic, thoracolumbar and lumbosacral intervertebral disc disordersM51.9Unspecified thoracic, thoracolumbar and lumbosacral intervertebral disc disorderM51.AOther lumbar and lumbosacral annulus fibrosus disc defects
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CodeM51
BillableNo — Header code
CategoryDiseases of the musculoskeletal system and connective tissue (M00-M99)
Excludes10 rule(s)
Excludes22 note(s)
Child codes8
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)