2026 ICD-10-CM Diagnosis Code G72.49Other inflammatory and immune myopathies, not elsewhere classified
ICD-10-CM Codes›G00–G99›G70-G73›G72
- Billable — Valid for Submission
- Chronic Condition
G72.49 is a billable ICD-10-CM diagnosis code for other inflammatory and immune myopathies, 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 545 through 547. Coders also document this condition as autoimmune myopathy. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Myopathies.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Autoimmune myopathy
- Eosinophilic myopathy
- Idiopathic inflammatory myopathy
- Inflammatory myopathy with abundant macrophages
- Muscle eosinophilia
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Inflammatory myopathy NOS
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- immune NEC - G72.49
- inflammatory NEC - G72.49
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Myopathy
- immune NEC
- Myopathy
- inflammatory NEC
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
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
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Convert G72.49 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About G72.49Overview
Is G72.49 (Inflammatory and immune myopathies, not elsewhere classified) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other inflammatory and immune myopathies, not elsewhere classified on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does G72.49 group to?
When other inflammatory and immune myopathies, not elsewhere classified 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 G72.49?
Under the General Equivalence Mappings, other inflammatory and immune myopathies, not elsewhere classified converts to ICD-9-CM 359.79 (inflm/immune myopath 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.
