All ICD10 Codes

M51

Non-Billable
ChapterM00–M99
Rankcategory
Official Description

Thoracic, thoracolumbar, and lumbosacral intervertebral disc disorders

Use a more specific code (1 billable, 7 non-billable)
M51.0Thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with myelopathyhas subcodesM51.1Thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with radiculopathyhas subcodesM51.2Other thoracic, thoracolumbar and lumbosacral intervertebral disc displacementhas subcodesM51.3Other thoracic, thoracolumbar and lumbosacral intervertebral disc degenerationhas subcodesM51.4Schmorl's nodeshas subcodesM51.8Other thoracic, thoracolumbar and lumbosacral intervertebral disc disordershas subcodesM51.9Unspecified thoracic, thoracolumbar and lumbosacral intervertebral disc disorderM51.AOther lumbar and lumbosacral annulus fibrosus disc defectshas subcodes
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (M00-M99).

CH13 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • arthropathic psoriasis (L40.5-)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • compartment syndrome (traumatic) (T79.A-)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

M50-M54 Parent Instructions

Excludes1(Not coded here. Use a different code.)
  • current injury - see injury of spine by body region
  • discitis NOS (M46.4-)

Instructional Notes

Excludes2(Not included here. Code separately if applicable.)
  • cervical and cervicothoracic disc disorders (M50.-)
  • sacral and sacrococcygeal disorders (M53.3)

Clinical Hierarchy

BillableHas subcodes
CH13Diseases of the musculoskeletal system and connective tissue (M00-M99)
M50-M54Other dorsopathies (M50-M54)
M51Thoracic, thoracolumbar, and lumbosacral intervertebral disc disordersNot billable
M51.0Thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with myelopathySubcodes
M51.1Thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with radiculopathySubcodes
M51.2Other thoracic, thoracolumbar and lumbosacral intervertebral disc displacementSubcodes
M51.3Other thoracic, thoracolumbar and lumbosacral intervertebral disc degenerationSubcodes
M51.4Schmorl's nodesSubcodes
M51.8Other thoracic, thoracolumbar and lumbosacral intervertebral disc disordersSubcodes
M51.9Unspecified thoracic, thoracolumbar and lumbosacral intervertebral disc disorderBillable
M51.AOther lumbar and lumbosacral annulus fibrosus disc defectsSubcodes

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to M51:

blockM50-M54
Other dorsopathies (M50-M54)
View context instructions
chapterCH13
Diseases of the musculoskeletal system and connective tissue (M00-M99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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