G70.1 ICD-10-CA code: Toxic myoneural disorders

G70.1 is the ICD-10-CA code for “Toxic myoneural disorders” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

G70.1

Toxic myoneural disorders

ICD-10-CA · Canada · Also written G701

Index terms

Entries in CIHI’s alphabetical index that lead to G70.1. Searching the index by the condition the note names is how coders reach this code.

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

Notes for G70.1

As CIHI prints them, with any note G70.1 takes from the headings above it.

Use additional code

Add a code for this detail when the note documents it.

  • Use additional external cause code (Chapter XX) to identify toxic agent.

Excludes

Conditions classified elsewhere.

  • Botulism (A05.1)myasthenia gravis in (with) diabetic neuropathy (E10.40/G73.0*) (E11.40/G73.0*) (E13.40/G73.0*) (E14.40/G73.0*)transient neonatal myasthenia gravis (P94.0)From G70 Myasthenia gravis and other myoneural disorders
  • Certain:• conditions originating in the perinatal period (P00-P96)• infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)From Chapter 6: Diseases of the nervous system (G00-G99)

Where G70.1 sits

  1. 1ChapterChapter 6: Diseases of the nervous system (G00-G99)
  2. 2Block G70-G73Diseases of myoneural junction and muscle
  3. 3Category G70Myasthenia gravis and other myoneural disorders
  4. 4Valid code G70.1Toxic myoneural disorders

Source and release

Data release
ICD-10-CA · FY 2026–2027
Effective date
Apr 1, 2026
Publisher
CIHI

This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

Frequently asked questions

What does ICD-10-CA code G70.1 mean?

G70.1 is the ICD-10-CA code for “Toxic myoneural disorders” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is G70.1 in ICD-10-CA?

G70.1 sits under G70 Myasthenia gravis and other myoneural disorders, within G70-G73 Diseases of myoneural junction and muscle, within Chapter 6: Diseases of the nervous system (G00-G99).

What coding notes apply to G70.1?

ICD-10-CA lists Use additional code, Excludes notes for G70.1, including those from the headings it sits under. They are listed on this page with where each one comes from.

Which ICD-10-CA release does this page use?

It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.