G71.1

Non-billable

Myotonic disorders

G71.1 is the ICD-10-CM code for Myotonic disorders. It is a non-billable category code — use a more specific child code such as G71.11 for billing.

Status
Header (non-billable)
Chapter
G00-G99
Parent
G71
Subcodes
5
Edition
FY2026

G00-G99 Diseases of the nervous system

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code G71.1?
G71.1 is the ICD-10-CM code for "Myotonic disorders". It falls under G00-G99 Diseases of the nervous system.
Is G71.1 a billable code?
No — G71.1 is a non-billable header code. Use a more specific child code (such as G71.11) for billing.
What are the subcodes of G71.1?
G71.1 has 5 more specific child codes, including G71.11, G71.12, G71.13.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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