M60.9 Myositis, unspecified

Billable ICD-10-CM code, FY2026.

Applies from M60 Myositis

Excludes2 (not included here)

• inclusion body myositis [IBM] (G72.41)

MS-DRG index

Defines the logic of DRG(s) 555-556 in MDC 08.

Approximate ICD-9-CM (GEMs)

• 729.1 Myalgia and myositis, unspecified (approximate)

Code annotations containing back-references to M60.9

Back-references to M60

• Type 2 Excludes: G71 Primary disorders of muscles ("myositis (M60.-)")
• Type 1 Excludes: G72 Other and unspecified myopathies ("myositis (M60.-)")
• Type 1 Excludes: M79.1 Myalgia ("myositis (M60.-)")

Diagnosis Index entries for M60.9

• Myositis

Nearby codes

• M60.871 Other myositis, right ankle and foot
• M60.872 Other myositis, left ankle and foot
• M60.879 Other myositis, unspecified ankle and foot
• M60.88 Other myositis, other site
• M60.89 Other myositis, multiple sites
• M60.9 Myositis, unspecified (this code)