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M51.1

M51.1: Thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with radiculopathy

Non-billable headerICD-10-CM

M51.1 is a non-billable header ICD-10-CM code for thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with radiculopathy. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Sciatica due to intervertebral disc disorder

Excludes2 inherited from the categories above M51.1

Not part of this code, but both may be coded when both are present.

Written on M51: Thoracic, thoracolumbar, and lumbosacral intervertebral disc disorders

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

Other codes that can never be billed with M51.1

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • G55Nerve root and plexus compressions in diseases classified elsewhere
  • M54.1Radiculopathy
  • M54.3Sciatica
  • M54.4Lumbago with sciatica
  • M54.6Pain in thoracic spine
  • S23.0Traumatic rupture of thoracic intervertebral disc
  • S23.0XXATraumatic rupture of thoracic intervertebral disc, initial encounter
  • S23.0XXDTraumatic rupture of thoracic intervertebral disc, subsequent encounter

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead M51.1

4 child codes. Green means billable.

Other codes under M51

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.