M62.81 Muscle weakness (generalized)

Billable ICD-10-CM code, FY2026.

Excludes1 (never code together)

• muscle weakness in sarcopenia (M62.84)

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 M62.8 Other specified disorders of muscle

Excludes2 (not included here)

• nontraumatic hematoma of muscle (M79.81)

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 728.87 Muscle weakness (generalized)

Code annotations containing back-references to M62.81

Back-references to M62.81

• Type 1 Excludes: R53.1 Weakness ("muscle weakness (generalized) (M62.81)")

Diagnosis Index entries for M62.81

• Myasthenic
• Quadriparesis › meaning muscle weakness
• Weak, weakening, weakness (generalized) › muscle

Nearby codes

• M62.5A0 Muscle wasting and atrophy, not elsewhere classified, back, cervical
• M62.5A1 Muscle wasting and atrophy, not elsewhere classified, back, thoracic
• M62.5A2 Muscle wasting and atrophy, not elsewhere classified, back, lumbosacral
• M62.5A9 Muscle wasting and atrophy, not elsewhere classified, back, unspecified level
• M62.8 Other specified disorders of muscle
• M62.81 Muscle weakness (generalized) (this code)
• M62.82 Rhabdomyolysis
• M62.83 Muscle spasm
• M62.830 Muscle spasm of back
• M62.831 Muscle spasm of calf
• M62.838 Other muscle spasm