2024 ICD-10-CM Diagnosis Code G71.8

Other primary disorders of muscles

ICD-10-CM Code:
ICD-10 Code for:
Other primary disorders of muscles
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Not chronic
Code Navigator:

Code Classification

  • Diseases of the nervous system
    • Diseases of myoneural junction and muscle
      • Primary disorders of muscles

G71.8 is a billable diagnosis code used to specify a medical diagnosis of other primary disorders of muscles. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Approximate Synonyms

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

  • Alpha-B crystallin-related late-onset myopathy
  • Amyotrophy due to herpes zoster
  • Atrophy of tongue
  • Autosomal dominant distal axonal motor neuropathy, myofibrillar myopathy syndrome
  • Autosomal dominant distal hereditary motor neuropathy
  • Benign monomelic amyotrophy
  • Benign monomelic amyotrophy of lower limb
  • Benign monomelic amyotrophy of upper limb
  • Childhood-onset autosomal recessive myopathy with external ophthalmoplegia
  • Chronic intestinal pseudo-obstruction
  • Fatal infantile hypertonic myofibrillar myopathy
  • Hereditary hollow viscus myopathy
  • Hereditary inclusion body myopathy type 4
  • Hereditary myopathy limited to females
  • Hollow visceral myopathy
  • Kyphosis, lateral tongue atrophy, myofibrillar myopathy syndrome
  • 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

Clinical Classification

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Convert G71.8 to ICD-9-CM

  • ICD-9-CM Code: 359.89 - Myopathies NEC
    Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Patient Education

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 of muscle disorders is unknown.

[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.


[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.