2026 ICD-10-CM Diagnosis Code M54.31Sciatica, right side

ICD-10-CM Codes›M00–M99›M50-M54›M54

ICD-10-CM M54.31
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

M54.31 is a billable ICD-10-CM diagnosis code for sciatica, right side. 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. 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 and Orthopedics medical specialties to designate conditions such neck and back pain.

Code Identity

ICD-10-CM Code
M54.31
Billable Status
Yes — Valid for Submission
Code Describes
Sciatica, right side
Short Description
Sciatica, right side
Same as the full description in the CMS dataset.
Parent Code
M54.3
Sciatica

Code Classification

ChapterM00–M99Diseases of the musculoskeletal system and connective tissue
SectionM50-M54Other dorsopathies
CategoryM54Dorsalgia
This CodeM54.31Sciatica, right side

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Bilateral neuralgia of nerve of lower limbs
  • Bilateral sciatic nerve disorder
  • Bilateral sciatica
  • Disorder of left sciatic nerve
  • Disorder of right sciatic nerve
  • Left side sciatica
  • Neuralgia of nerve of left lower limb
  • Neuralgia of nerve of right lower limb
  • Pain of bilateral thighs
  • Piriformis syndrome
  • Right side sciatica
  • Right-sided piriformis syndrome

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

Clinical InformationClinical

  • Sciatica

    a condition characterized by pain radiating from the back into the buttock and posterior/lateral aspects of the leg. sciatica may be a manifestation of sciatic neuropathy; radiculopathy (involving the spinal nerve roots; l4, l5, s1, or s2, often associated with intervertebral disk displacement); or lesions of the cauda equina.

Patient EducationClinical

Sciatica

Sciatica is a symptom of a problem with the sciatic nerve, the largest nerve in the body. It controls muscles in the back of your knee and lower leg and provides feeling to the back of your thigh, part of your lower leg, and the sole of your foot. When you have sciatica, you have pain, weakness, numbness, or tingling.

Read the full article at MedlinePlus

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

Convert M54.31 to ICD-9-CMHistory

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

ICD-9-CM
724.3 Sciatica
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 M54.31Overview

Is M54.31 (Sciatica) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report sciatica, right side on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does M54.31 group to?

When sciatica, right side 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 M54.31?

Under the General Equivalence Mappings, sciatica, right side converts to ICD-9-CM 724.3 (sciatica). 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.