G61.8 – Other inflammatory polyneuropathies

ICD-10-CM 2027 diagnosis code · Polyneuropathies and other disorders of the peripheral nervous system

Non-billable header

ICD-10-CM code G61.8

Code: G61.8 (claims format: G618)
Description: Other inflammatory polyneuropathies
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 6. Diseases of the nervous system (G00-G99)
Block: G60-G65 Polyneuropathies and other disorders of the peripheral nervous system
Parent codes: G61

Billable codes under G61.8

G61.8 is a header code and cannot be used on claims. Choose the most specific code:

G61.81 – Chronic inflammatory demyelinating polyneuritisBillable
G61.82 – Multifocal motor neuropathyBillable
G61.89 – Other inflammatory polyneuropathiesBillable

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

Block G60-G65

Excludes1 (not coded here):

neuralgia NOS (M79.2)
neuritis NOS (M79.2)
peripheral neuritis in pregnancy (O26.82-)
radiculitis NOS (M54.10)

Related codes in G61

G61.0 – Guillain-Barre syndromeBillable
G61.1 – Serum neuropathyBillable
G61.9 – Inflammatory polyneuropathy, unspecifiedBillable

Frequently asked questions

What is ICD-10 code G61.8?

G61.8 is the ICD-10-CM code for other inflammatory polyneuropathies, in the block G60-G65 (Polyneuropathies and other disorders of the peripheral nervous system).

Is G61.8 a billable code?

No. G61.8 is a header code with more specific child codes; report one of the billable codes listed above.

What category does G61.8 belong to?

It belongs to category G61 – Inflammatory polyneuropathy.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.