2026 ICD-10-CM Diagnosis Code M47.813Spondylosis without myelopathy or radiculopathy, cervicothoracic region

ICD-10-CM Codes›M00–M99›M45-M49›M47

ICD-10-CM M47.813
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

M47.813 is a billable ICD-10-CM diagnosis code for spondylosis without myelopathy or radiculopathy, cervicothoracic 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. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Spondylopathies/spondyloarthropathy (including infective).

Code Identity

ICD-10-CM Code
M47.813
Billable Status
Yes — Valid for Submission
Code Describes
Spondylosis without myelopathy or radiculopathy, cervicothoracic region
Short Description
Spondyls w/o myelopathy or radiculopathy, cervicothor region
Parent Code
M47.81
Spondylosis without myelopathy or radiculopathy

Code Classification

ChapterM00–M99Diseases of the musculoskeletal system and connective tissue
SectionM45-M49Spondylopathies
CategoryM47Spondylosis
This CodeM47.813Spondylosis without myelopathy or radiculopathy, cervicothoracic region

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.

    • Spondylosis
      • without myelopathy or radiculopathy
        • cervicothoracic region

Clinical ClassificationClinical

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

CCSR MUS011
Spondylopathies/spondyloarthropathy (including infective)
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Spine Injuries and Disorders

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:

Read the full article at MedlinePlus

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

Convert M47.813 to ICD-9-CMHistory

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

ICD-9-CM
721.0 Cervical spondylosis
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 M47.813Overview

Is M47.813 (Spondylosis without myelopathy or radiculopathy) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report spondylosis without myelopathy or radiculopathy, cervicothoracic region on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does M47.813 group to?

When spondylosis without myelopathy or radiculopathy, cervicothoracic 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 M47.813?

Under the General Equivalence Mappings, spondylosis without myelopathy or radiculopathy, cervicothoracic region converts to ICD-9-CM 721.0 (cervical spondylosis). 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.