M60.18 Interstitial myositis, other 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 M60.18

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 M60.18

• Myositis › interstitial › specified site NEC

Nearby codes

• M60.169 Interstitial myositis, unspecified lower leg
• M60.17 Interstitial myositis, ankle and foot
• M60.171 Interstitial myositis, right ankle and foot
• M60.172 Interstitial myositis, left ankle and foot
• M60.179 Interstitial myositis, unspecified ankle and foot
• M60.18 Interstitial myositis, other site (this code)
• M60.19 Interstitial myositis, multiple sites
• M60.2 Foreign body granuloma of soft tissue, not elsewhere classified
• M60.20 Foreign body granuloma of soft tissue, not elsewhere classified, unspecified site
• M60.21 Foreign body granuloma of soft tissue, not elsewhere classified, shoulder
• M60.211 Foreign body granuloma of soft tissue, not elsewhere classified, right shoulder