M60.021 Infective myositis, right upper arm

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applies from M60 Myositis

Excludes2 (not included here)

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

Applies from M60.0 Infective myositis

Applicable to

• Tropical pyomyositis

Use additional code

• code (B95-B97) to identify infectious agent

MS-DRG index

Defines the logic of DRG(s) 557-558 in MDC 08.

Approximate ICD-9-CM (GEMs)

• 728.0 Infective myositis (approximate)

Code annotations containing back-references to M60.021

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

• M60.01 Infective myositis, shoulder
• M60.011 Infective myositis, right shoulder
• M60.012 Infective myositis, left shoulder
• M60.019 Infective myositis, unspecified shoulder
• M60.02 Infective myositis, upper arm
• M60.021 Infective myositis, right upper arm (this code)
• M60.022 Infective myositis, left upper arm
• M60.029 Infective myositis, unspecified upper arm
• M60.03 Infective myositis, forearm
• M60.031 Infective myositis, right forearm
• M60.032 Infective myositis, left forearm