2026 ICD-10-CM Diagnosis Code M51.17Intervertebral disc disorders with radiculopathy, lumbosacral region

ICD-10-CM Codes›M00–M99›M50-M54›M51

ICD-10-CM M51.17
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

M51.17 is a billable ICD-10-CM diagnosis code for intervertebral disc disorders with radiculopathy, lumbosacral region. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 551 through 552. Coders also document this condition as lumbago with sciatica. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Low back pain and Spondylopathies/spondyloarthropathy (including infective).

This medical diagnosis code is frequently used in Orthopedics medical specialties to designate conditions such thoracic, thoracolumbar, and lumbosacral intervertebral disc disorders.

Code Identity

ICD-10-CM Code
M51.17
Billable Status
Yes — Valid for Submission
Code Describes
Intervertebral disc disorders with radiculopathy, lumbosacral region
Short Description
Intvrt disc disorders w radiculopathy, lumbosacral region
Parent Code
M51.1
Thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with radiculopathy

Code Classification

ChapterM00–M99Diseases of the musculoskeletal system and connective tissue
SectionM50-M54Other dorsopathies
CategoryM51Thoracic, thoracolumbar, and lumbosacral intervertebral disc disorders
This CodeM51.17Intervertebral disc disorders with radiculopathy, lumbosacral region

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Lumbago with sciatica
  • Lumbago-sciatica due to displacement of lumbar intervertebral disc
  • Pain in lumbar spine
  • Pain of vertebral joint
  • Radiculopathy due to intervertebral disc disorder
  • Radiculopathy due to lumbar intervertebral disc disorder
  • Radiculopathy of lumbosacral spine due to disc disorder

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Degeneration, degenerative
      • intervertebral disc
        • lumbosacral region
          • with
            • neuritis, radiculitis, radiculopathy or sciatica
    • Disease, diseased
      • intervertebral disc
        • lumbosacral (with)
          • neuritis, radiculitis, radiculopathy or sciatica
    • Disorder(of)
      • disc (intervertebral)
        • with
          • radiculopathy
            • lumbosacral region
    • Displacement, displaced
      • intervertebral disc NEC
        • lumbosacral region
          • with
            • neuritis, radiculitis, radiculopathy or sciatica
    • Lumbago, lumbalgia
      • with sciatica
        • due to intervertebral disc disorder
    • Lumbago, lumbalgia
      • due to displacement, intervertebral disc
        • with sciatica

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR MUS038
Low back pain
Default principal diagnosis: inpatient No · outpatient No
CCSR MUS011
Spondylopathies/spondyloarthropathy (including infective)
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Peripheral Nerve Disorders

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.

The full article covers:

  • What are peripheral nerves?
  • What are peripheral nerve disorders?
  • What causes peripheral nerve disorders?
  • What are the symptoms of peripheral nerve disorders?
  • How are peripheral nerve disorders diagnosed?
  • What are the treatments for peripheral nerve disorders?
  • Can peripheral nerve disorders be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert M51.17 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
722.93 Disc dis NEC/NOS-lumbar
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About M51.17Overview

Is M51.17 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report intervertebral disc disorders with radiculopathy, lumbosacral region on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does M51.17 group to?

When intervertebral disc disorders with radiculopathy, lumbosacral region is the principal diagnosis on an inpatient stay, it groups to MS-DRG 551, 552, with relative weights from 0.9613 to 1.6761 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of M51.17?

Under the General Equivalence Mappings, intervertebral disc disorders with radiculopathy, lumbosacral region converts to ICD-9-CM 722.93 (disc dis NEC/NOS-lumbar). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.