M51

Non-billable

Thoracic, thoracolumbar, and lumbosacral intervertebral disc disorders

M51 is the ICD-10-CM code for Thoracic, thoracolumbar, and lumbosacral intervertebral disc disorders. It is a non-billable category code — use a more specific child code such as M51.0 for billing.

Status
Header (non-billable)
Chapter
M00-M99
Subcodes
8
Edition
FY2026

M00-M99 Diseases of the musculoskeletal system and connective tissue

What this means — in plain language

MedlinePlus · NIH

Your backbone, or spine, is made up of 26 bone discs called vertebrae. The vertebrae protect your spinal cord and allow you to stand and bend. A number of problems can change the structure of the spine or damage the vertebrae and surrounding tissue. They include: Infections Injuries Tumors Conditions, such as ankylosing spondylitis and scoliosis Bone changes that come with age, such as spinal stenosis and herniated…

Read more about Spine Injuries and Disorders at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Excludes2 — not included here

  • cervical and cervicothoracic disc disorders (M50.-)
  • sacral and sacrococcygeal disorders (M53.3)

Frequently asked questions

What is ICD-10 code M51?
M51 is the ICD-10-CM code for "Thoracic, thoracolumbar, and lumbosacral intervertebral disc disorders". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
Is M51 a billable code?
No — M51 is a non-billable header code. Use a more specific child code (such as M51.0) for billing.
What are the subcodes of M51?
M51 has 8 more specific child codes, including M51.0, M51.1, M51.2.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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