2027 ICD-10-CM Diagnosis Code G62.9Polyneuropathy, unspecified

ICD-10-CM Codes›G00–G99›G60-G65›G62

ICD-10-CM G62.9
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

G62.9 is a billable ICD-10-CM diagnosis code for polyneuropathy, unspecified. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 73 through 74. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Polyneuropathies.

G62.9 does not risk-adjust for Medicare Advantage under the CMS-HCC V28 model. It still risk-adjusts in the ESRD (V21) category 75 for payment year 2027.

Code Identity

ICD-10-CM Code
G62.9
Billable Status
Yes — Valid for Submission
Code Describes
Polyneuropathy, unspecified
Short Description
Polyneuropathy, unspecified
Same as the full description in the CMS dataset.
Parent Code
G62
Other and unspecified polyneuropathies

Code Classification

ChapterG00–G99Diseases of the nervous system
SectionG60-G65Polyneuropathies and other disorders of the peripheral nervous system
CategoryG62Other and unspecified polyneuropathies
This CodeG62.9Polyneuropathy, unspecified

Medicare Risk Adjustment (HCC)Billing

G62.9 does not risk-adjust for Medicare Advantage under the CMS-HCC V28 model, but it maps to payment categories in the other CMS models shown below.

CMS-HCC V28 (Medicare Advantage Payment Model)
Not mapped
no payment category in the model that pays 100% of MA risk scores
Prior Model (CMS-HCC V24)
Not mapped under V24
this diagnosis newly risk-adjusts under the V28 model
Other CMS Models
ESRD (V21): HCC 75
ESRD V21 weights: 0.059 dialysis, 0.284–0.323 functioning graft
Part D (RxHCC)
Not mapped
G62.9 does not risk-adjust in the RxHCC prescription drug model

Source: CMS Payment Year 2027 risk adjustment mappings and model software. Weights are relative factors, not dollar amounts; a beneficiary's total RAF also includes demographics and interactions. Browse all CMS-HCC categories.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Abdominal neuropathy
  • Autosomal dominant optic atrophy and peripheral neuropathy syndrome
  • Axonal neuropathy
  • Bilateral peripheral neuropathy of lower limbs
  • Bilateral peripheral neuropathy of upper limbs
  • Cervical hypertrichosis and peripheral neuropathy syndrome
  • Chronic axonal neuropathy
  • Chronic painful polyneuropathy
  • Chronic peripheral neuropathic pain
  • Congenital disorder of facial nerve
  • Congenital facial nerve palsy
  • Congenital keratoderma
  • Digital extensor muscle aplasia with polyneuropathy
  • Disorder of peripheral nervous system co-occurrent with human immunodeficiency virus infection
  • Distal symmetrical polyneuropathy
  • Dominant hereditary optic atrophy
  • Episodic peripheral neuropathy
  • Erectile dysfunction due to neuropathy
  • Hereditary dysautonomia with motor neuropathy
  • Iatrogenic neuropathy
  • Immune-mediated neuropathy
  • Injection neuropathy
  • Left arm peripheral neuropathy
  • Left leg peripheral neuropathy
  • Leukoencephalopathy, dystonia, motor neuropathy syndrome
  • MEDNIK syndrome
  • Metabolic neuropathy
  • Moebius syndrome, axonal neuropathy, hypogonadotropic hypogonadism syndrome
  • Neurological disorder due to excess intake of micronutrients
  • Neurological pain disorder
  • Neuropathic ulcer of ankle
  • Neuropathic ulcer of left ankle
  • Neuropathic ulcer of left foot
  • Neuropathic ulcer of left heel
  • Neuropathic ulcer of left midfoot
  • Neuropathic ulcer of left toe
  • Neuropathic ulcer of right ankle
  • Neuropathic ulcer of right foot
  • Neuropathic ulcer of right heel
  • Neuropathic ulcer of right midfoot
  • Neuropathic ulcer of right toe
  • Neuropathy
  • Neuropathy caused by human immunodeficiency virus
  • Neuropathy due to vitamin B deficiency
  • Neuropathy due to vitamin B12 deficiency
  • Neuropathy due to vitamin B6 deficiency
  • Neuropathy due to vitamin E deficiency
  • Ophthalmoplegia due to neuropathy
  • Peripheral axonal atrophy
  • Peripheral axonal neuropathy
  • Peripheral neuritis
  • Peripheral neuropathic pain
  • Peripheral neuropathy due to hypervitaminosis B6
  • Peripheral sensory neuropathy
  • Polyneuropathy
  • Polyneuropathy and mononeuropathy
  • Polyneuropathy co-occurrent with human immunodeficiency virus infection
  • Polyneuropathy with AIDS
  • Polyradiculopathy
  • Progressive peripheral neuropathy
  • Pudendal nerve neuropathy
  • Right leg peripheral neuropathy
  • Sensory ataxic neuropathy
  • Sensory neuropathy
  • Strachan's syndrome
  • Thoracoabdominal neuropathy
  • Trunk nerve lesion
  • Ulcer of left ankle
  • Ulcer of left heel
  • Ulcer of left midfoot
  • Ulcer of right ankle
  • Ulcer of right heel
  • Ulcer of right midfoot
  • Ulcer of toe of left foot
  • Ulcer of toe of right foot
  • Vitamin deficiency related neuropathy

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to G62.9: 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.

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • Neuropathy NOS

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.

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR NVS015
Polyneuropathies
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Polyneuropathies

    diseases of multiple peripheral nerves simultaneously. polyneuropathies usually are characterized by symmetrical, bilateral distal motor and sensory impairment with a graded increase in severity distally. the pathological processes affecting peripheral nerves include degeneration of the axon, myelin or both. the various forms of polyneuropathy are categorized by the type of nerve affected (e.g., sensory, motor, or autonomic), by the distribution of nerve injury (e.g., distal vs. proximal), by nerve component primarily affected (e.g., demyelinating vs. axonal), by etiology, or by pattern of inheritance.

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.

Convert G62.9 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
357.9 Inflam/tox neuropthy NOS
Approximate The match is approximate rather than exact.

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 G62.9Overview

What is the ICD-10 code for polyneuropathy, unspecified?

The ICD-10-CM code for polyneuropathy, unspecified is G62.9 (sometimes written as G629). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is G62.9 (Other and unspecified polyneuropathies) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report polyneuropathy, unspecified on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does G62.9 group to?

When polyneuropathy, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 74, 73, with relative weights from 1.0172 to 1.5773 depending on complications. Higher weights mean higher Medicare reimbursement.

Can G62.9 be reported with M79.2?

Not as a rule. The Excludes1 note at block G60-G65, which applies to G62.9, 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).

What is the ICD-9 equivalent of G62.9?

Under the General Equivalence Mappings, polyneuropathy, unspecified converts to ICD-9-CM 357.9 (inflam/tox neuropthy NOS). The mapping is approximate, so confirm the match fits the documentation.

Does G62.9 risk-adjust for Medicare Advantage payment?

Not for Medicare Advantage: G62.9 maps to no category in the CMS-HCC V28 model. It still risk-adjusts in the ESRD (V21) category 75 (Polyneuropathy).