M62.431 Contracture of muscle, 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 M62.4 Contracture of muscle

Applicable to

• Contracture of tendon (sheath)

Excludes1 (never code together)

• contracture of joint (M24.5-)

MS-DRG index

Defines the logic of DRG(s) 555-556 in MDC 08.

Approximate ICD-9-CM (GEMs)

• 728.85 Spasm of muscle (approximate)

Code annotations containing back-references to M62.431

Back-references to M62.4

• Type 1 Excludes: M24.5 Contracture of joint ("contracture of muscle without contracture of joint (M62.4-)")
• Type 1 Excludes: M24.5 Contracture of joint ("contracture of tendon (sheath) without contracture of joint (M62.4-)")

Nearby codes

• M62.42 Contracture of muscle, upper arm
• M62.421 Contracture of muscle, right upper arm
• M62.422 Contracture of muscle, left upper arm
• M62.429 Contracture of muscle, unspecified upper arm
• M62.43 Contracture of muscle, forearm
• M62.431 Contracture of muscle, right forearm (this code)
• M62.432 Contracture of muscle, left forearm
• M62.439 Contracture of muscle, unspecified forearm
• M62.44 Contracture of muscle, hand
• M62.441 Contracture of muscle, right hand
• M62.442 Contracture of muscle, left hand