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ICD-10-CM 2027 diagnosis code

G61.8Other inflammatory polyneuropathies

Not billable — use a more specific code

G61.8 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 G61.8

G61.8 is the ICD-10-CM diagnosis code for other inflammatory polyneuropathies. It belongs to category G61 (inflammatory polyneuropathy), 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.

Within G61, choose G61.8 (Other inflammatory polyneuropathies) only when documentation doesn't support a more specific option: Guillain-Barre syndrome (G61.0), serum neuropathy (G61.1) and unspecified (G61.9).

To report this condition, pick the subcode that matches the documentation: G61.81 (polyneuritis), G61.82 (neuropathy) and G61.89 (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 G61.8

Notes that apply from higher levels

Instructions written at a parent level also apply to G61.8.

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

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about G61.8

Is G61.8 billable?

No. G61.8 is a header code. Report one of its more specific subcodes instead.