ICD10BillableValid for clinical use
ICD-10 Code G73.7: Myopathy in diseases classified elsewhere
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the nervous system (G00-G99).
When is it used?
- May be used when a clinician documents myopathy in diseases classified elsewhere in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code can be used as a clinically usable diagnosis entry in standardized coding workflows.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
Code hierarchy
chapter
6Diseases of the nervous system (G00-G99)
block
G70-G73Diseases of myoneural junction and muscle
category
G73Disorders of myoneural junction and muscle in diseases classified elsewhere
currentG73
Official coding notes
Applicable to
- underlying disease, such as:
- glycogen storage disease (E74.0-)
- hyperparathyroidism (E21.0, E21.3)
- hypoparathyroidism (E20.-)
- lipid storage disorders (E75.-)
Excludes1 (do not code together)
- myopathy in:
- rheumatoid arthritis (M05.32)
- sarcoidosis (D86.87)
- scleroderma (M34.82)
- Sjögren syndrome (M35.03)
- systemic lupus erythematosus (M32.19)
Code first
- underlying disease, such as:
- glycogen storage disease (E74.0-)
- hyperparathyroidism (E21.0, E21.3)
- hypoparathyroidism (E20.-)
- lipid storage disorders (E75.-)
Where you may see this code
You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.
Related specialists
NeurologistGeneral Physician
Related codes
Sibling codes
Coverage-related procedures and services
CPT 95907high
NERVE CONDUCTION STUDIES; 1-2 STUDIES
Source: CMS coverage guidance
CPT 95912high
NERVE CONDUCTION STUDIES; 11-12 STUDIES
Source: CMS coverage guidance
CPT 95913high
NERVE CONDUCTION STUDIES; 13 OR MORE STUDIES
Source: CMS coverage guidance
CPT 95908high
NERVE CONDUCTION STUDIES; 3-4 STUDIES
Source: CMS coverage guidance
CPT 95909high
NERVE CONDUCTION STUDIES; 5-6 STUDIES
Source: CMS coverage guidance
CPT 95910high
NERVE CONDUCTION STUDIES; 7-8 STUDIES
Source: CMS coverage guidance
Mapped diagnoses and classifications
SNOMED_CT 193247000high
Amyloid myopathy
Source: SNOMED International ICD-10 map
SNOMED_CT 722991004high
Autoimmune myopathy
Source: SNOMED International ICD-10 map
SNOMED_CT 234530009high
Chronic sarcoid myopathy
Source: SNOMED International ICD-10 map
SNOMED_CT 193253000high
Myopathy due to Sjögren's disease
Source: SNOMED International ICD-10 map
SNOMED_CT 870299000high
Myopathy due to calcium deficiency
Source: SNOMED International ICD-10 map
SNOMED_CT 193248005high
Myopathy due to disseminated lupus erythematosus
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy and official ICD code match exactly.
Legacy codes
G73.7
Common synonyms
Myopathy in diseases classified elsewhere
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.