ICD-10-CM Code M62.81

Muscle weakness (generalized)

Version 2020 Billable Code

Valid for Submission

M62.81 is a billable code used to specify a medical diagnosis of muscle weakness (generalized). The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code M62.81 might also be used to specify conditions or terms like abnormal gait due to muscle weakness, bilateral weakness of upper limbs, calf muscle weakness, distal muscle weakness, dropped head syndrome, finding of movement of hand, etc

Short Description:Muscle weakness (generalized)
Long Description:Muscle weakness (generalized)

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code M62.81:

Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • muscle weakness in sarcopenia M62.84

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code M62.81 are found in the index:


The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Abnormal gait due to muscle weakness
  • Bilateral weakness of upper limbs
  • Calf muscle weakness
  • Distal muscle weakness
  • Dropped head syndrome
  • Finding of movement of hand
  • Grade of muscle power - finding
  • Hand muscle weakness
  • Insufficient power to move joint
  • Muscle weakness
  • Muscle weakness of limb
  • Muscle weakness of limb
  • Muscle weakness of upper limb
  • Neurogenic muscle weakness, ataxia and retinitis pigmentosa
  • Neurological muscle weakness
  • O/E - muscle power
  • O/E - muscle power
  • O/E - muscle power
  • O/E - muscle power absent
  • O/E - muscle power reduced
  • O/E - paresis
  • Paresis of lower extremity
  • Paresis of lower extremity
  • Proximal muscle weakness
  • Pyramidal type muscle weakness
  • Quadriceps weakness
  • Truncal muscle weakness
  • Weak mouth closure
  • Weak teeth clenching
  • Weakness of back
  • Weakness of distal arms and legs
  • Weakness of extremities as sequela of stroke
  • Weakness of hand
  • Weakness of jaw muscles
  • Weakness of sternomastoid
  • Weakness present

Clinical Information

  • MUSCLE WEAKNESS-. a vague complaint of debility fatigue or exhaustion attributable to weakness of various muscles. the weakness can be characterized as subacute or chronic often progressive and is a manifestation of many muscle and neuromuscular diseases. from wyngaarden et al. cecil textbook of medicine 19th ed p2251

Diagnostic Related Groups

The ICD-10 code M62.81 is grouped in the following groups for version MS-DRG V37.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC).
applicable from 10/01/2019 through 09/30/2020.


Convert M62.81 to ICD-9

  • 728.87 - Muscle weakness-general

Code Classification

  • Diseases of the musculoskeletal system and connective tissue (M00–M99)
    • Disorders of muscles (M60-M63)
      • Other disorders of muscle (M62)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients

Muscle Disorders

Your muscles help you move and help your body work. Different types of muscles have different jobs. There are many problems that can affect muscles. Muscle disorders can cause weakness, pain or even paralysis.

Causes of muscle disorders include

  • Injury or overuse, such as sprains or strains, cramps or tendinitis
  • A genetic disorder, such as muscular dystrophy
  • Some cancers
  • Inflammation, such as myositis
  • Diseases of nerves that affect muscles
  • Infections
  • Certain medicines

Sometimes the cause is not known.

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