2026 ICD-10-CM Diagnosis Code G72.41Inclusion body myositis [IBM]

ICD-10-CM Codes›G00–G99›G70-G73›G72

ICD-10-CM G72.41
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

G72.41 is a billable ICD-10-CM diagnosis code for inclusion body myositis [IBM]. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 545 through 547. Coders also document this condition as hereditary inclusion body myopathy, joint contracture, ophthalmoplegia syndrome. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Myopathies.

Code Identity

ICD-10-CM Code
G72.41
Billable Status
Yes — Valid for Submission
Code Describes
Inclusion body myositis [IBM]
Short Description
Inclusion body myositis [IBM]
Same as the full description in the CMS dataset.
Parent Code
G72.4
Inflammatory and immune myopathies, not elsewhere classified

Code Classification

ChapterG00–G99Diseases of the nervous system
SectionG70-G73Diseases of myoneural junction and muscle
CategoryG72Other and unspecified myopathies
This CodeG72.41Inclusion body myositis [IBM]

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Hereditary inclusion body myopathy, joint contracture, ophthalmoplegia syndrome
  • Inclusion body myositis
  • Myopathy with cytoplasmic inclusions
  • Sporadic inclusion body myositis

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.

    • Myositis
      • inclusion body [IBM]

Clinical ClassificationClinical

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

CCSR NVS018
Myopathies
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Inclusion Body Myositis

    an acquired or hereditary chronic inflammatory disorder of the muscles characterized by the morphologic finding of vacuoles and filamentous inclusions in the muscle tissues.

Patient EducationClinical

Muscle Disorders

Your muscles help you move and help your body work. Different types of muscles have different jobs. There are many problems that can affect muscles. Muscle disorders can cause weakness, pain or even paralysis.

Read the full article at MedlinePlus

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

Convert G72.41 to ICD-9-CMHistory

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

ICD-9-CM
359.71 Inclusion body myositis
Exact Match The mapping is direct, with no qualifiers.

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 G72.41Overview

Is G72.41 (Inflammatory and immune myopathies, not elsewhere classified) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report inclusion body myositis [IBM] on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does G72.41 group to?

When inclusion body myositis [IBM] is the principal diagnosis on an inpatient stay, it groups to MS-DRG 545, 546, 547, with relative weights from 0.8362 to 2.4817 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of G72.41?

Under the General Equivalence Mappings, inclusion body myositis [IBM] converts to ICD-9-CM 359.71 (inclusion body myositis). The mapping is a direct match.

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.