M51.1

Non-billable

Thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with radiculopathy

M51.1 is the ICD-10-CM code for Thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with radiculopathy. It is a non-billable category code — use a more specific child code such as M51.14 for billing.

Status
Header (non-billable)
Chapter
M00-M99
Parent
M51
Subcodes
4
Edition
FY2026

M00-M99 Diseases of the musculoskeletal system and connective tissue

What this means — in plain language

MedlinePlus · NIH

What are peripheral nerves? Nerves are like wires that carry messages back and forth between your brain and your body. Your peripheral nerves branch off from your brain and spinal cord and connect to all parts of your body, including your muscles and organs. Peripheral nerves carry messages from your brain that control your movement, breathing, heartbeat, digestion, and more. They also carry messages from your body…

Read more about Peripheral Nerve Disorders at MedlinePlus ↗

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

Includes

  • Sciatica due to intervertebral disc disorder

Excludes1 — not coded here

  • lumbar radiculitis NOS (M54.16)
  • sciatica NOS (M54.3)

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". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
Is M51.1 a billable code?
No — M51.1 is a non-billable header code. Use a more specific child code (such as M51.14) for billing.
What are the subcodes of M51.1?
M51.1 has 4 more specific child codes, including M51.14, M51.15, M51.16.
What is excluded from M51.1?
Excludes1 (not coded here): lumbar radiculitis NOS (M54.16); sciatica NOS (M54.3).

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

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