ICD-10-CM 2027 diagnosis code

G65Sequelae of inflammatory and toxic polyneuropathies

Not billable — use a more specific code

G65 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About G65

G65 is the ICD-10-CM diagnosis code for sequelae of inflammatory and toxic polyneuropathies. It belongs to block G60-G65 (polyneuropathies and other disorders of the peripheral nervous system) and chapter 6 (diseases of the nervous system). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: G65.0 (syndrome), G65.1 (polyneuropathy) and G65.2 (polyneuropathy).

Code first: condition resulting from (sequela) of inflammatory and toxic polyneuropathies.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under G65

Coding notes

Code firstSequence the underlying condition first

condition resulting from (sequela) of inflammatory and toxic polyneuropathies

Notes that apply from higher levels

Instructions written at a parent level also apply to G65.

Broader instructions also apply from G60-G65 Polyneuropathies and other disorders of the peripheral nervous system and Chapter 6: Diseases of the nervous system.

Code history

2016
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2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about G65

Is G65 billable?: No. G65 is a header code. Report one of its more specific subcodes instead.