M62.031 Separation of muscle (nontraumatic), right forearm

Billable ICD-10-CM code, FY2026.

Applies from M62 Other disorders of muscle

Excludes1 (never code together)

• alcoholic myopathy (G72.1)
• cramp and spasm (R25.2)
• drug-induced myopathy (G72.0)
• myalgia (M79.1-)
• stiff-man syndrome (G25.82)

Excludes2 (not included here)

• nontraumatic hematoma of muscle (M79.81)

Applies from M62.0 Separation of muscle (nontraumatic)

Applicable to

• Diastasis of muscle

Excludes1 (never code together)

• diastasis recti complicating pregnancy, labor and delivery (O71.8)
• traumatic separation of muscle- see strain of muscle by body region

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 728.84 Diastasis of muscle (approximate)

Nearby codes

• M62.02 Separation of muscle (nontraumatic), upper arm
• M62.021 Separation of muscle (nontraumatic), right upper arm
• M62.022 Separation of muscle (nontraumatic), left upper arm
• M62.029 Separation of muscle (nontraumatic), unspecified upper arm
• M62.03 Separation of muscle (nontraumatic), forearm
• M62.031 Separation of muscle (nontraumatic), right forearm (this code)
• M62.032 Separation of muscle (nontraumatic), left forearm
• M62.039 Separation of muscle (nontraumatic), unspecified forearm
• M62.04 Separation of muscle (nontraumatic), hand
• M62.041 Separation of muscle (nontraumatic), right hand
• M62.042 Separation of muscle (nontraumatic), left hand