2026 ICD-10-CM Diagnosis Code M60.070Infective myositis, right ankle
ICD-10-CM Codes›M00–M99›M60-M63›M60
- Billable — Valid for Submission
- Not Chronic
M60.070 is a billable ICD-10-CM diagnosis code for infective myositis, right ankle. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 557 through 558. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Muscle disorders.
Code Identity
Code Classification
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Myositis
Myositis means inflammation of the muscles that you use to move your body. An injury, infection, or autoimmune disease can cause it. Two specific kinds are polymyositis and dermatomyositis. Polymyositis causes muscle weakness, usually in the muscles closest to the trunk of your body.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert M60.070 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About M60.070Overview
Is M60.070 (Infective myositis, ankle, foot and toes) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report infective myositis, right ankle on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does M60.070 group to?
When infective myositis, right ankle is the principal diagnosis on an inpatient stay, it groups to MS-DRG 557, 558, with relative weights from 0.8932 to 1.4869 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of M60.070?
Under the General Equivalence Mappings, infective myositis, right ankle converts to ICD-9-CM 728.0 (infective myositis). 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.
