Is ICD-10-CM code G65 billable?

No, G65 (Sequelae of inflammatory and toxic polyneuropathies) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code G65 belong to?

G65 belongs to Chapter 6 of the ICD-10-CM tabular list: G00–G99 (Diseases of the Nervous System).

G65Non-billable

Sequelae of inflammatory and toxic polyneuropathies

Diseases of the Nervous System·Polyneuropathies and other disorders of the peripheral nervous system (G60-G65)·category·FY 2026

Use a more specific code (3 billable)

G65.0Sequelae of Guillain-Barré syndrome G65.1Sequelae of other inflammatory polyneuropathy G65.2Sequelae of toxic polyneuropathy

CH6 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)

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)

G60-G65 Parent Instructions

Excludes1(Not coded here. Use a different code.)

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

Instructional Notes

Code First

condition resulting from (sequela) of inflammatory and toxic polyneuropathies

Clinical Hierarchy

BillableHas subcodes

CH6Diseases of the nervous system (G00-G99)

G60-G65Polyneuropathies and other disorders of the peripheral nervous system (G60-G65)

G65Sequelae of inflammatory and toxic polyneuropathiesNot billable

G65.0Sequelae of Guillain-Barré syndromeBillable

G65.1Sequelae of other inflammatory polyneuropathyBillable

G65.2Sequelae of toxic polyneuropathyBillable

MS-DRG Classification

2026

No direct MS-DRG triggers identified.