ICD10
ICD-10 Code G70.8: Other specified myoneural disorders
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. 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 other specified myoneural disorders in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.
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.
- This entry may represent a broader category rather than the most specific billable code.
Code hierarchy
chapter
6Diseases of the nervous system (G00-G99)
block
G70-G73Diseases of myoneural junction and muscle
category
G70Myasthenia gravis and other myoneural disorders
currentG70
Where you may see this code
You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.
Related specialists
NeurologistGeneral Physician
Related codes
Sibling codes
Mapped diagnoses and classifications
SNOMED_CT 230671004high
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Source: SNOMED International ICD-10 map
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Source: SNOMED International ICD-10 map
SNOMED_CT 292991000119106high
Eaton Lambert syndrome without underlying malignancy
Source: SNOMED International ICD-10 map
SNOMED_CT 56989000high
Eaton-Lambert syndrome
Source: SNOMED International ICD-10 map
SNOMED_CT 1137386008high
Generalised hypotonia due to neuromuscular junction defect
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
G70.8
Replacement codes
G70.80 — Lambert-Eaton syndrome, unspecifiedG70.81 — Lambert-Eaton syndrome in disease classified elsewhereG70.89 — Other specified myoneural disorders
Common synonyms
Other specified myoneural disorders
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.