2027 ICD-10-CM Diagnosis Code G60.3Idiopathic progressive neuropathy

ICD-10-CM Codes›G00–G99›G60-G65›G60

ICD-10-CM G60.3
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

G60.3 is a billable ICD-10-CM diagnosis code for idiopathic progressive neuropathy. 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. Coders also document this condition as idiopathic chronic neuropathy. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Polyneuropathies.

G60.3 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
G60.3
Billable Status
Yes — Valid for Submission
Code Describes
Idiopathic progressive neuropathy
Short Description
Idiopathic progressive neuropathy
Same as the full description in the CMS dataset.
Parent Code
G60
Hereditary and idiopathic neuropathy

Code Classification

ChapterG00–G99Diseases of the nervous system
SectionG60-G65Polyneuropathies and other disorders of the peripheral nervous system
CategoryG60Hereditary and idiopathic neuropathy
This CodeG60.3Idiopathic progressive neuropathy

Medicare Risk Adjustment (HCC)Billing

G60.3 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
G60.3 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.

  • Idiopathic chronic neuropathy
  • Idiopathic progressive polyneuropathy
  • Progressive polyneuropathy with bilateral striatal necrosis

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to G60.3: 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.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name G60.3, its category, or a range that includes it.

Excludes2 1

These codes carry an Excludes2 note naming G60.3: its condition is not part of those codes, and both may be reported when the patient has both.

  • G11 Hereditary ataxia
    hereditary and idiopathic neuropathy (G60.-) names G60.-, which includes this code

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

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 G60.3 to ICD-9-CMHistory

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

ICD-9-CM
356.4 Idio prog polyneuropathy
Exact Match The mapping is direct, with no qualifiers.

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 G60.3Overview

What is the ICD-10 code for idiopathic progressive neuropathy?

The ICD-10-CM code for idiopathic progressive neuropathy is G60.3 (sometimes written as G603). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is G60.3 (Hereditary and idiopathic neuropathy) a billable code?

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

What MS-DRG does G60.3 group to?

When idiopathic progressive neuropathy 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 G60.3 be reported with M79.2?

Not as a rule. The Excludes1 note at block G60-G65, which applies to G60.3, 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 G60.3?

Under the General Equivalence Mappings, idiopathic progressive neuropathy converts to ICD-9-CM 356.4 (idio prog polyneuropathy). The mapping is a direct match.

Does G60.3 risk-adjust for Medicare Advantage payment?

Not for Medicare Advantage: G60.3 maps to no category in the CMS-HCC V28 model. It still risk-adjusts in the ESRD (V21) category 75 (Polyneuropathy).