2026 ICD-10-CM Diagnosis Code G70.1Toxic myoneural disorders

ICD-10-CM Codes›G00–G99›G70-G73›G70

ICD-10-CM G70.1
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

G70.1 is a billable ICD-10-CM diagnosis code for toxic myoneural disorders. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Drug induced or toxic related condition and Myopathies.

Code Identity

ICD-10-CM Code
G70.1
Billable Status
Yes — Valid for Submission
Code Describes
Toxic myoneural disorders
Short Description
Toxic myoneural disorders
Same as the full description in the CMS dataset.
Parent Code
G70
Myasthenia gravis and other myoneural disorders

Code Classification

ChapterG00–G99Diseases of the nervous system
SectionG70-G73Diseases of myoneural junction and muscle
CategoryG70Myasthenia gravis and other myoneural disorders
This CodeG70.1Toxic myoneural disorders

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Cholinergic crisis
  • Disorder of neuromuscular junction caused by botulinum toxin
  • Neuromuscular junction disorder due to ingestion of organic phosphorus compound
  • Pelagic paralysis
  • Poisoning due to bite of tick
  • Tick paralysis
  • Toxic neuromuscular junction disorder

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Code First

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Disorder(of)
      • myoneural
        • due to lead
    • Disorder(of)
      • myoneural
        • toxic
    • Disorder(of)
      • neuromuscular
        • toxic

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR INJ030
Drug induced or toxic related condition
Default principal diagnosis: inpatient No · outpatient No
CCSR NVS018
Myopathies
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Tick Paralysis

    paralysis caused by a neurotropic toxin secreted by the salivary glands of ticks.

Patient EducationClinical

Neuromuscular Disorders

Neuromuscular disorders affect your neuromuscular system. They can cause problems with:

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert G70.1 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
358.2 Toxic myoneural disorder
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About G70.1Overview

Is G70.1 (Myasthenia gravis and other myoneural disorders) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report toxic myoneural disorders on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What is the ICD-9 equivalent of G70.1?

Under the General Equivalence Mappings, toxic myoneural disorders converts to ICD-9-CM 358.2 (toxic myoneural disorder). The mapping is a direct match.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.