G59

Billable

Mononeuropathy in diseases classified elsewhere

G59 is the ICD-10-CM code for Mononeuropathy in diseases classified elsewhere. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
G00-G99
Edition
FY2026

G00-G99 Diseases of the nervous system

What this means — in plain language

MedlinePlus · NIH

What are peripheral nerves? Nerves are like wires that carry messages back and forth between your brain and your body. Your peripheral nerves branch off from your brain and spinal cord and connect to all parts of your body, including your muscles and organs. Peripheral nerves carry messages from your brain that control your movement, breathing, heartbeat, digestion, and more. They also carry messages from your body…

Read more about Peripheral Nerve Disorders at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Excludes1 — not coded here

  • diabetic mononeuropathy (E08-E13 with .41)
  • syphilitic nerve paralysis (A52.19)
  • syphilitic neuritis (A52.15)
  • tuberculous mononeuropathy (A17.83)

Code first

  • underlying disease

Frequently asked questions

What is ICD-10 code G59?
G59 is the ICD-10-CM code for "Mononeuropathy in diseases classified elsewhere". It falls under G00-G99 Diseases of the nervous system.
Is G59 a billable code?
Yes — G59 is a billable, specific ICD-10-CM code valid for reimbursement.
What is excluded from G59?
Excludes1 (not coded here): diabetic mononeuropathy (E08-E13 with .41); syphilitic nerve paralysis (A52.19); syphilitic neuritis (A52.15); tuberculous mononeuropathy (A17.83).

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

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