G61.81 – Chronic inflammatory demyelinating polyneuritis

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

Billable code

ICD-10-CM code G61.81

Code: G61.81 (claims format: G6181)
Description: Chronic inflammatory demyelinating polyneuritis
Billable: Yes – valid for HIPAA-covered transactions
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 › G61.8

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)

Index terms for G61.81

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in G61.8

G61.82 – Multifocal motor neuropathyBillable
G61.89 – Other inflammatory polyneuropathiesBillable

Frequently asked questions

What is ICD-10 code G61.81?

G61.81 is the ICD-10-CM code for chronic inflammatory demyelinating polyneuritis, in the block G60-G65 (Polyneuropathies and other disorders of the peripheral nervous system).

Is G61.81 a billable code?

Yes. G61.81 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does G61.81 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.