G70.00 — Myasthenia gravis without (acute) exacerbation

G70.00

ICD-10 Chapter 6: Nervous System — illustrative image — Chapter 6: Diseases of the nervous system (G00–G99) — illustrative image

What this code means

Myasthenia gravis is an autoimmune condition causing fluctuating muscle weakness that worsens with activity; here without an acute flare.

Also called: myasthenia gravis.

When this code is used

Used for myasthenia gravis without (acute) exacerbation.

Where it sits in ICD-10-CM

Code G70.00 belongs to Chapter 6: Diseases of the nervous system, which covers codes G00–G99 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.

Related symptoms

Watch: related videos

▶ WatchMyasthenia gravis ▶ WatchOcular clinical tests of myasthenia gravis

Frequently asked questions

What is ICD-10-CM code G70.00?

G70.00 is the ICD-10-CM diagnosis code for “Myasthenia gravis without (acute) exacerbation”. Myasthenia gravis is an autoimmune condition causing fluctuating muscle weakness that worsens with activity; here without an acute flare.

When is code G70.00 used?

Used for myasthenia gravis without (acute) exacerbation. It belongs to Chapter 6 of ICD-10-CM (Diseases of the nervous system).

This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.