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G56.9

Non-billable

Unspecified mononeuropathy of upper limb

G56.9 is the ICD-10-CM code for Unspecified mononeuropathy of upper limb. It is a non-billable category code — use a more specific child code such as G56.90 for billing.

Status
Header (non-billable)
Chapter
G00-G99
Parent
G56
Subcodes
4
Edition
FY2026

G00-G99 Diseases of the nervous system

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code G56.9?
G56.9 is the ICD-10-CM code for "Unspecified mononeuropathy of upper limb". It falls under G00-G99 Diseases of the nervous system.
Is G56.9 a billable code?
No — G56.9 is a non-billable header code. Use a more specific child code (such as G56.90) for billing.
What are the subcodes of G56.9?
G56.9 has 4 more specific child codes, including G56.90, G56.91, G56.92.

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

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