2027 ICD-10-CM Diagnosis Code G61Inflammatory polyneuropathy

ICD-10-CM Codes›G00–G99›G60-G65›G61

ICD-10-CM G61
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

G61 is a non-billable ICD-10-CM category code for inflammatory polyneuropathy, so it cannot be submitted on claims. Use a more specific code from this category instead, such as G61.0, G61.1, G61.81, and G61.82.

Code Identity

ICD-10-CM Code
G61
Billable Status
No — Non-Billable Category
Code Describes
Inflammatory polyneuropathy
Short Description
Inflammatory polyneuropathy
Same as the full description in the CMS dataset.
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
CategoryG61Inflammatory polyneuropathy
This CodeG61Inflammatory polyneuropathy

Specific Coding for Inflammatory polyneuropathyOverview

Non-specific codes like G61 require more characters. Use one of these billable codes instead:

  • Use G61.0 for Guillain-Barre syndrome

  • Use G61.1 for Serum neuropathy

  • G61.8 for Other inflammatory polyneuropathies

  • Use G61.81 for Chronic inflammatory demyelinating polyneuritis

  • Use G61.82 for Multifocal motor neuropathy

  • Use G61.89 for Other inflammatory polyneuropathies

  • Use G61.9 for Inflammatory polyneuropathy, unspecified

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to G61: its own notes plus those printed at block G60-G65 and Chapter 6. A note printed at a category, block or chapter applies to every code under it.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From Block G60-G65 Polyneuropathies and other disorders of the peripheral nervous system applies to 24 codes

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 6 (G00-G99) Diseases of the nervous system applies to 700 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About G61Overview

What is the ICD-10 code for inflammatory polyneuropathy?

G61 is the ICD-10-CM category for inflammatory polyneuropathy, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is G61 (Inflammatory polyneuropathy) a billable code?

No. This is a category header that groups the codes for inflammatory polyneuropathy, and headers cannot be submitted on claims. Claims for inflammatory polyneuropathy need a more specific code from this category, such as G61.0, G61.1, and G61.81.

Can G61 be reported with M79.2?

Not as a rule. The Excludes1 note at block G60-G65, which applies to G61, lists "neuralgia NOS (M79.2)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).