2024 ICD-10-CM Diagnosis Code G73.7

Myopathy in diseases classified elsewhere

ICD-10-CM Code:
ICD-10 Code for:
Myopathy in diseases classified elsewhere
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
      • Disorders of myoneural junction and muscle in diseases classified elsewhere

G73.7 is a billable diagnosis code used to specify a medical diagnosis of myopathy in diseases classified elsewhere. 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:

  • Amyloid myopathy
  • Amyloid myopathy
  • Amyloid myopathy
  • Autoimmune inflammation of skeletal muscle
  • Autoimmune necrotizing myopathy
  • Carcinomatous myopathic syndrome
  • Chronic myopathy with hypocalcemia and hypophosphatemia
  • Endocrine myopathy
  • Endocrine myopathy
  • Endocrine myopathy
  • Endocrine myopathy
  • Endocrine myopathy
  • Endocrine myopathy
  • Endocrine myopathy
  • Endocrine myopathy
  • Endocrine myopathy
  • Endocrine myopathy
  • Endocrine myopathy
  • Glycogen storage disease, muscular form
  • Human immunodeficiency virus myopathy
  • Hypothyroid myopathy
  • Idiopathic inflammatory myopathy
  • Lipid storage myopathy
  • Lipid storage myopathy
  • Luft's hypermetabolic myopathy
  • Metabolic myopathy
  • Metabolic myopathy due to lactate transporter defect
  • Mitochondrial-lipid-glycogen storage myopathy
  • Myopathy co-occurrent and due to hypercalcemia
  • Myopathy due to calcium deficiency
  • Myopathy due to Cushing's syndrome
  • Myopathy due to magnesium deficiency
  • Myopathy due to paraneoplastic syndrome
  • Myopathy due to polyarteritis nodosa
  • Myopathy in acromegaly
  • Myopathy in Addison's disease
  • Myopathy in Cushing's disease
  • Myopathy in hyperparathyroidism
  • Myopathy in hypoparathyroidism
  • Myopathy in hypopituitarism
  • Myopathy in myasthenia gravis
  • Myopathy in osteomalacia
  • Neutral lipid storage disease with myopathy
  • Nutritional myopathy
  • Nutritional myopathy
  • Nutritional myopathy
  • Nutritional myopathy
  • Polyglucosan body myopathy type 1
  • Polyglucosan body myopathy type 2
  • Potassium depletion myopathy
  • Primary familial amyloid myopathy
  • Primary sporadic amyloid myopathy
  • Protein deficiency myopathy
  • Secondary myopathy
  • Secondary myopathy
  • Secondary myopathy
  • Symptomatic inflammatory myopathy
  • Symptomatic inflammatory myopathy associated with another disorder
  • Thyrotoxic myopathy

Clinical Classification

Clinical Information

  • Metabolic Myopathy

    a group of rare inherited disorders characterized by a deficiency of enzymes that are involved in metabolic pathways that affect muscles. the disorders are characterized by muscle dysfunction.

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.

Code First

Code First
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
  • underlying disease, such as:
  • glycogen storage disease E74.0
  • hyperparathyroidism E21.0 E21.3
  • hypoparathyroidism E20
  • lipid storage disorders E75

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.

Code Edits

The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10-CM Code Edits are applicable to this code:

  • Manifestation diagnoses - Manifestation codes describe the manifestation of an underlying disease, not the disease itself, and therefore should not be used as a principal diagnosis.

Convert G73.7 to ICD-9-CM

  • ICD-9-CM Code: 359.5 - Myopathy in endocrin dis
    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.