ICD-10-CM Code G71.8

Other primary disorders of muscles

Version 2020 Billable Code

Valid for Submission

G71.8 is a billable code used to specify a medical diagnosis of other primary disorders of muscles. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code G71.8 might also be used to specify conditions or terms like amyotrophy due to herpes zoster, benign monomelic amyotrophy, chronic intestinal pseudo-obstruction, hereditary hollow viscus myopathy, hereditary inclusion body myopathy type 4, hereditary myopathy limited to females, etc

Short Description:Other primary disorders of muscles
Long Description:Other primary disorders of muscles

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 G71.8 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:

  • Amyotrophy due to herpes zoster
  • Benign monomelic amyotrophy
  • Chronic intestinal pseudo-obstruction
  • Hereditary hollow viscus myopathy
  • Hereditary inclusion body myopathy type 4
  • Hereditary myopathy limited to females
  • Hollow visceral myopathy
  • Myopathy due to calsequestrin and SERCA1 protein overload
  • Myopathy with cytoplasmic inclusions
  • Proximal myopathy
  • Proximal myopathy with extrapyramidal signs
  • X-linked limb girdle muscular dystrophy with normal dystrophin
  • X-linked muscular dystrophy with limb girdle distribution
  • X-linked myopathy with postural muscle atrophy

Convert G71.8 to ICD-9

  • 359.89 - Myopathies NEC (Approximate Flag)

Code Classification

  • Diseases of the nervous system (G00–G99)
    • Diseases of myoneural junction and muscle (G70-G73)
      • Primary disorders of muscles (G71)

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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