2026 ICD-10-CM Diagnosis Code M53.3Sacrococcygeal disorders, not elsewhere classified

ICD-10-CM Codes›M00–M99›M50-M54›M53

ICD-10-CM M53.3
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

M53.3 is a billable ICD-10-CM diagnosis code for sacrococcygeal disorders, not elsewhere classified. 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).

Code Identity

ICD-10-CM Code
M53.3
Billable Status
Yes — Valid for Submission
Code Describes
Sacrococcygeal disorders, not elsewhere classified
Short Description
Sacrococcygeal disorders, not elsewhere classified
Same as the full description in the CMS dataset.
Parent Code
M53
Other and unspecified dorsopathies, not elsewhere classified

Code Classification

ChapterM00–M99Diseases of the musculoskeletal system and connective tissue
SectionM50-M54Other dorsopathies
CategoryM53Other and unspecified dorsopathies, not elsewhere classified
This CodeM53.3Sacrococcygeal disorders, not elsewhere classified

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Bilateral sacroiliac joint pain
  • Chronic pain in coccyx for more than three months
  • Chronic sacroiliac joint pain
  • Disorder of coccyx
  • Disorder of sacrum
  • Joint pain of pelvic region
  • Pain in coccyx
  • Pain in left sacroiliac joint
  • Pain in right sacroiliac joint
  • Pain of joint of pelvis and/or upper leg
  • Pain of sacroiliac joint
  • Tenderness of sacroiliac joint

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Coccygodynia

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.

    • Backache(postural)
      • sacroiliac
    • Change(s) (in) (of)
      • sacroiliac joint
    • Coccydynia, coccygodynia
    • Degeneration, degenerative
      • intervertebral disc
        • sacrococcygeal region
    • Destruction, destructive
      • joint
        • sacroiliac
    • Disease, diseased
      • joint
        • sacroiliac
    • Disease, diseased
      • sacroiliac NEC
    • Disorder(of)
      • coccyx NEC
    • Disorder(of)
      • disc (intervertebral)
        • with
          • myelopathy
            • sacrococcygeal region
    • Disorder(of)
      • disc (intervertebral)
        • with
          • radiculopathy
            • sacrococcygeal region
    • Disorder(of)
      • disc (intervertebral)
        • specified NEC
          • sacrococcygeal region
    • Disorder(of)
      • sacrum, sacrococcygeal NEC
    • Displacement, displaced
      • intervertebral disc NEC
        • sacrococcygeal region
    • Lesion(s) (nontraumatic)
      • joint
        • sacroiliac (old)
    • Lesion(s) (nontraumatic)
      • sacroiliac (joint) (old)
    • Pain(s)
      • coccyx
    • Pain(s)
      • sacroiliac
    • Sacralgia
    • Sacrodynia
    • Schmorl's disease or nodes
      • sacrococcygeal region

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

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 M53.3 to ICD-9-CMHistory

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

ICD-9-CM
724.6 Disorders of sacrum
Approximate The match is approximate rather than exact.
ICD-9-CM
724.70 Disorder of coccyx NOS
Approximate The match is approximate rather than exact.
ICD-9-CM
724.79 Disorder of coccyx NEC
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 M53.3Overview

Is M53.3 (Other and unspecified dorsopathies, not elsewhere classified) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report sacrococcygeal disorders, not elsewhere classified on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does M53.3 group to?

When sacrococcygeal disorders, not elsewhere classified 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 M53.3?

Under the General Equivalence Mappings, sacrococcygeal disorders, not elsewhere classified converts to ICD-9-CM 724.6 (disorders of sacrum), 724.70 (disorder of coccyx NOS), and 724.79 (disorder of coccyx NEC). 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.