M60.10 Interstitial myositis of unspecified site

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) 557-558 in MDC 08.

Approximate ICD-9-CM (GEMs)

• 728.81 Interstitial myositis (approximate)

Code annotations containing back-references to M60.10

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 M60.10

• Myositis › interstitial

Nearby codes

• M60.077 Infective myositis, left toe(s)
• M60.078 Infective myositis, unspecified toe(s)
• M60.08 Infective myositis, other site
• M60.09 Infective myositis, multiple sites
• M60.1 Interstitial myositis
• M60.10 Interstitial myositis of unspecified site (this code)
• M60.11 Interstitial myositis, shoulder
• M60.111 Interstitial myositis, right shoulder
• M60.112 Interstitial myositis, left shoulder
• M60.119 Interstitial myositis, unspecified shoulder
• M60.12 Interstitial myositis, upper arm