2026 ICD-10-CM Diagnosis Code M62.830Muscle spasm of back

ICD-10-CM Codes›M00–M99›M60-M63›M62

ICD-10-CM M62.830
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

M62.830 is a billable ICD-10-CM diagnosis code for muscle spasm of back. 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 muscle spasm of thoracic back. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Low back pain.

Code Identity

ICD-10-CM Code
M62.830
Billable Status
Yes — Valid for Submission
Code Describes
Muscle spasm of back
Short Description
Muscle spasm of back
Same as the full description in the CMS dataset.
Parent Code
M62.83
Muscle spasm

Code Classification

ChapterM00–M99Diseases of the musculoskeletal system and connective tissue
SectionM60-M63Disorders of muscles
CategoryM62Other disorders of muscle
This CodeM62.830Muscle spasm of back

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Muscle spasm of thoracic back
  • Paravertebral muscle spasm
  • Spasm of back muscles
  • Spasm of muscle of lower back
  • Spasm of skeletal muscle of thorax

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.

    • Spasm(s), spastic, spasticity
      • muscle NEC
        • back

Clinical ClassificationClinical

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

CCSR MUS038
Low back pain
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Neuromuscular Disorders

Neuromuscular disorders affect your neuromuscular system. They can cause problems with:

Read the full article at MedlinePlus

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

Convert M62.830 to ICD-9-CMHistory

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

ICD-9-CM
724.8 Other back symptoms
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 M62.830Overview

Is M62.830 (Muscle spasm) a billable code?

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

What MS-DRG does M62.830 group to?

When muscle spasm of back 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 M62.830?

Under the General Equivalence Mappings, muscle spasm of back converts to ICD-9-CM 724.8 (other back symptoms). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.