M60.159 Interstitial myositis, unspecified thigh

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 M60.159

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.-)")

Nearby codes

• M60.142 Interstitial myositis, left hand
• M60.149 Interstitial myositis, unspecified hand
• M60.15 Interstitial myositis, thigh
• M60.151 Interstitial myositis, right thigh
• M60.152 Interstitial myositis, left thigh
• M60.159 Interstitial myositis, unspecified thigh (this code)
• M60.16 Interstitial myositis, lower leg
• M60.161 Interstitial myositis, right lower leg
• M60.162 Interstitial myositis, left lower leg
• M60.169 Interstitial myositis, unspecified lower leg
• M60.17 Interstitial myositis, ankle and foot