2026 ICD-10-CM Diagnosis Code G65Sequelae of inflammatory and toxic polyneuropathies

ICD-10-CM Codes›G00–G99›G60-G65›G65

ICD-10-CM G65
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

G65 is a non-billable ICD-10-CM category code for sequelae of inflammatory and toxic polyneuropathies, so it cannot be submitted on claims. Use a more specific code from this category instead, such as G65.0, G65.1, and G65.2.

Code Identity

ICD-10-CM Code
G65
Billable Status
No — Non-Billable Category
Code Describes
Sequelae of inflammatory and toxic polyneuropathies
Chapter
G60-G65
Polyneuropathies and other disorders of the peripheral nervous system

Code Classification

ChapterG00–G99Diseases of the nervous system
SectionG60-G65Polyneuropathies and other disorders of the peripheral nervous system
CategoryG65Sequelae of inflammatory and toxic polyneuropathies
This CodeG65Sequelae of inflammatory and toxic polyneuropathies

Specific Coding for Sequelae of inflammatory and toxic polyneuropathiesOverview

Non-specific codes like G65 require more characters. Use one of these billable codes instead:

  • Use G65.0 for Sequelae of Guillain-Barre syndrome

  • Use G65.1 for Sequelae of other inflammatory polyneuropathy

  • Use G65.2 for Sequelae of toxic polyneuropathy

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Code First

  • condition resulting from (sequela) of inflammatory and toxic polyneuropathies

Patient EducationClinical

Peripheral Nerve Disorders

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.

The full article covers:

  • What are peripheral nerves?
  • What are peripheral nerve disorders?
  • What causes peripheral nerve disorders?
  • What are the symptoms of peripheral nerve disorders?
  • How are peripheral nerve disorders diagnosed?
  • What are the treatments for peripheral nerve disorders?
  • Can peripheral nerve disorders be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About G65Overview

Is G65 (Sequelae of inflammatory and toxic polyneuropathies) a billable code?

No. This is a category header that groups the codes for sequelae of inflammatory and toxic polyneuropathies, and headers cannot be submitted on claims. Claims for sequelae of inflammatory and toxic polyneuropathies need a more specific code from this category, such as G65.0, G65.1, and G65.2.