2026 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 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

G62.9 is a billable ICD-10-CM diagnosis code for polyneuropathy, unspecified. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Polyneuropathies.

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

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 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
  • 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
  • Pudendal nerve neuropathy
  • Right leg peripheral 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

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Neuropathy NOS

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Neuritis(rheumatoid)
      • peripheral (nerve)
    • Neuropathy, neuropathic
    • Neuropathy, neuropathic
      • peripheral (nerve)
    • Polyneuropathy(peripheral)

Clinical ClassificationClinical

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

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

Clinical InformationClinical

  • Lyme Neuroborreliosis

    nervous system infections caused by tick-borne spirochetes of the borrelia burgdorferi group. the disease may affect elements of the central or peripheral nervous system in isolation or in combination. common clinical manifestations include a lymphocytic meningitis, cranial neuropathy (most often a facial neuropathy), polyradiculopathy, and a mild loss of memory and other cognitive functions. less often more extensive inflammation involving the central nervous system (encephalomyelitis) may occur. in the peripheral nervous system, b. burgdorferi infection is associated with mononeuritis multiplex and polyradiculoneuritis. (from j neurol sci 1998 jan 8;153(2):182-91)

  • Polyradiculoneuropathy, Chronic Inflammatory Demyelinating

    a slowly progressive autoimmune demyelinating disease of peripheral nerves and nerve roots. clinical manifestations include weakness and sensory loss in the extremities and enlargement of peripheral nerves. the course may be relapsing-remitting or demonstrate a step-wise progression. protein is usually elevated in the spinal fluid and cranial nerves are typically spared. guillain-barre syndrome features a relatively rapid progression of disease which distinguishes it from this condition. (adams et al., principles of neurology, 6th ed, p1337)

  • Polyradiculopathy

    disease or injury involving multiple spinal nerve roots. polyradiculitis refers to inflammation of multiple spinal nerve roots.

  • Guillain-Barre Syndrome

    an acute inflammatory autoimmune neuritis caused by t cell- mediated cellular immune response directed towards peripheral myelin. demyelination occurs in peripheral nerves and nerve roots. the process is often preceded by a viral or bacterial infection, surgery, immunization, lymphoma, or exposure to toxins. common clinical manifestations include progressive weakness, loss of sensation, and loss of deep tendon reflexes. weakness of respiratory muscles and autonomic dysfunction may occur. (from adams et al., principles of neurology, 6th ed, pp1312-1314)

  • Spinal Nerve Roots

    paired bundles of nerve fibers entering and leaving the spinal cord at each segment. the dorsal and ventral nerve roots join to form the mixed segmental spinal nerves. the dorsal roots are generally afferent, formed by the central projections of the spinal (dorsal root) ganglia sensory cells, and the ventral roots are efferent, comprising the axons of spinal motor and preganglionic autonomic fibers.

  • Chronic Metabolic Polyneuropathy

    neuropathy affecting multiple nerves that is caused by a metabolic disorder.

  • Chronic Toxic Polyneuropathy

    neuropathy affecting multiple nerves that is caused by prolonged exposure to toxic substances.

  • Drug-Induced Polyneuropathy

    polyneuropathy caused by exposure to a drug.

  • Familial Amyloid Polyneuropathy Type II|Indiana-Maryland type amyloid polyneuropathy

    a subtype of hereditary transthyretin amyloidosis with polyneuropathy characterized by a course of disease with polyneuropathy beginning at the hands and frequent carpal tunnel syndrome operations. originally thought to be the result of the same genetic mutation, it was determined that substitution of histidine for leucine at position 58 of the ttr gene (l58h) results in the maryland/german variant, whereas substitution of serine for isoleucine at position 84 of transthyretin (i84s) results in the indiana/swiss variant. the maryland/german variant is further distinguished from the indiana/swiss variant by a lack of vitreous opacities.

  • Familial Amyloid Polyneuropathy Type IV|AGel Amyloidosis|Familial Amyloidosis of Finnish Type|Familial amyloid neuropathy, Finnish type|Finnish Hereditary Amyloidosis|Hereditary Gelsolin Amyloidosis|Meretoja Syndrome

    an autosomal dominant inherited form of familial amyloid neuropathy caused by mutation(s) in the gsn gene, encoding gelsolin. it is characterized by lattice corneal dystrophy, cranial neuropathy, bulbar signs, and skin changes.

  • Mixed Sensory-Motor Polyneuropathy|Mixed sensory-motor polyneuropathy

    a congenital or acquired condition where multiple peripheral nerves are damaged causing individuals to experience both sensory disturbances and motor difficulties.

  • Parkinsonism with Polyneuropathy|PKNPY

    an autosomal dominant subtype of parkinson disease, caused by mutation(s) in the uqcrc1 gene, encoding cytochrome b-c1 complex subunit 1, mitochondrial.

  • Polyneuropathy, Hearing Loss, Ataxia, Retinitis Pigmentosa, and Cataract|PHARC

    an autosomal recessive condition caused by mutation(s) in the abhd12 gene, encoding lysophosphatidylserine lipase abhd12. it is characterized by polyneuropathy, hearing loss, ataxia, retinitis pigmentosa and cataract.

  • Alcoholic Polyneuropathy|Alcoholic polyneuropathy

    any disease affecting more than one nerve.

  • Chronic Inflammatory Demyelinating Polyneuropathy|CIDP|Chronic Inflammatory Demyelinating Polyneuritis|Chronic Inflammatory Demyelinating Polyradiculoneuropathy

    an immunologic inflammatory disorder characterized by loss of myelin in the peripheral nerves. patients present with progressive weakness and loss of sensory function in the legs and arms.

  • Chronic Polyneuropathy

    polyneuropathy that is persistent or long-standing in nature.

  • Critical Illness Polyneuromyopathy|Critical illness polyneuropathy/myopathy

    polyneuropathy and myopathy arising in intensive care unit patients.

  • Critical Illness Polyneuropathy|Critical illness polyneuropathy

    polyneuropathy arising in intensive care unit patients. it is a common complication of severe sepsis and is thought to represent a neurologic manifestation of systemic inflammatory response syndrome (sirs).

  • Demyelinating Polyneuropathy

    polyneuropathy that is characterized by demyelination of axons.

  • Diabetes Mellitus due to Underlying Condition with Diabetic Autonomic Polyneuropathy|Diabetes mellitus due to underlying condition with diabetic autonomic (poly)neuropathy

    evidence of diabetes mellitus due to underlying condition with diabetic autonomic polyneuropathy.

  • Diabetes Mellitus due to Underlying Condition with Diabetic Polyneuropathy|Diabetes mellitus due to underlying condition with diabetic polyneuropathy

    evidence of diabetes mellitus due to underlying condition with diabetic polyneuropathy.

  • Drug or Chemical Induced Diabetes Mellitus with Neurological Complication with Diabetic Autonomic Polyneuropathy|Drug or chemical induced diabetes mellitus with neurological complications with diabetic autonomic (poly)neuropathy

    evidence of drug or chemical induced diabetes mellitus with neurological complication with diabetic autonomic polyneuropathy.

  • Drug or Chemical Induced Diabetes Mellitus with Neurological Complication with Diabetic Polyneuropathy|Drug or chemical induced diabetes mellitus with neurological complications with diabetic polyneuropathy

    evidence of drug or chemical induced diabetes mellitus with neurological complication with diabetic polyneuropathy.

  • Familial Amyloid Neuropathy|Amyloid Neuropathies, Familial|Familial Amyloid Polyneuropathy

    a rare inherited neuropathy characterized by deposition of amyloid in the peripheral nerves.

  • Hereditary Transthyretin Amyloidosis with Polyneuropathy|ATTRv-PN|Hereditary Amyloidogenic Transthyretin Amyloidosis with Polyneuropathy|TTR-FAP|Transthyretin Familial Amyloid Polyneuropathy|Variant Transthyretin Amyloidosis with Polyneuropathy|hATTR-PN

    a rare, progressive, autosomally dominant inherited peripheral neuropathy caused by mutations in the ttr gene encoding transthyretin (prealbumin). it is characterized by deposition of amyloid fibrils in the peripheral nervous system.

  • Other Specified Diabetes Mellitus with Diabetic Autonomic Polyneuropathy|Other specified diabetes mellitus with diabetic autonomic (poly)neuropathy

    evidence of other specified diabetes mellitus with diabetic autonomic polyneuropathy not specified elsewhere.

  • Other Specified Diabetes Mellitus with Diabetic Polyneuropathy|Other specified diabetes mellitus with diabetic polyneuropathy

    evidence of other specified diabetes mellitus with diabetic polyneuropathy not specified elsewhere.

  • Paraneoplastic Polyneuropathy

    a diffuse or multifocal peripheral neuropathy caused by the effects of a distant neoplasm. it may be attributed, in part, to the immune response to neoplasm-elaborated proteins. the neuropathy may be sensory, motor, mixed or autonomic. it may be the initial presentation of an occult neoplasm. detection and resection of the neoplasm may result in cure.

  • Polyneuropathy

    a disease or disorder affecting more than one nerve.

  • Rheumatoid Polyneuropathy with Rheumatoid Arthritis of Left Ankle and Foot|Rheumatoid polyneuropathy with rheumatoid arthritis of left ankle and foot

    evidence of rheumatoid polyneuropathy with rheumatoid arthritis of left ankle and foot.

  • Rheumatoid Polyneuropathy with Rheumatoid Arthritis of Left Elbow|Rheumatoid polyneuropathy with rheumatoid arthritis of left elbow

    evidence of rheumatoid polyneuropathy with rheumatoid arthritis of left elbow.

  • Rheumatoid Polyneuropathy with Rheumatoid Arthritis of Left Hand|Rheumatoid polyneuropathy with rheumatoid arthritis of left hand

    evidence of rheumatoid polyneuropathy with rheumatoid arthritis of left hand.

  • Rheumatoid Polyneuropathy with Rheumatoid Arthritis of Left Hip|Rheumatoid polyneuropathy with rheumatoid arthritis of left hip

    evidence of rheumatoid polyneuropathy with rheumatoid arthritis of left hip.

  • Rheumatoid Polyneuropathy with Rheumatoid Arthritis of Left Knee|Rheumatoid polyneuropathy with rheumatoid arthritis of left knee

    evidence of rheumatoid polyneuropathy with rheumatoid arthritis of left knee.

  • Rheumatoid Polyneuropathy with Rheumatoid Arthritis of Left Shoulder|Rheumatoid polyneuropathy with rheumatoid arthritis of left shoulder

    evidence of rheumatoid polyneuropathy with rheumatoid arthritis of left shoulder.

  • Rheumatoid Polyneuropathy with Rheumatoid Arthritis of Left Wrist|Rheumatoid polyneuropathy with rheumatoid arthritis of left wrist

    evidence of rheumatoid polyneuropathy with rheumatoid arthritis of left wrist.

  • Rheumatoid Polyneuropathy with Rheumatoid Arthritis of Multiple Sites|Rheumatoid polyneuropathy with rheumatoid arthritis of multiple sites

    evidence of rheumatoid polyneuropathy with rheumatoid arthritis of multiple sites.

  • Rheumatoid Polyneuropathy with Rheumatoid Arthritis of Right Ankle and Foot|Rheumatoid polyneuropathy with rheumatoid arthritis of right ankle and foot

    evidence of rheumatoid polyneuropathy with rheumatoid arthritis of right ankle and foot.

  • Rheumatoid Polyneuropathy with Rheumatoid Arthritis of Right Elbow|Rheumatoid polyneuropathy with rheumatoid arthritis of right elbow

    evidence of rheumatoid polyneuropathy with rheumatoid arthritis of right elbow.

  • Rheumatoid Polyneuropathy with Rheumatoid Arthritis of Right Hand|Rheumatoid polyneuropathy with rheumatoid arthritis of right hand

    evidence of rheumatoid polyneuropathy with rheumatoid arthritis of right hand.

  • Rheumatoid Polyneuropathy with Rheumatoid Arthritis of Right Hip|Rheumatoid polyneuropathy with rheumatoid arthritis of right hip

    evidence of rheumatoid polyneuropathy with rheumatoid arthritis of right hip.

  • Rheumatoid Polyneuropathy with Rheumatoid Arthritis of Right Knee|Rheumatoid polyneuropathy with rheumatoid arthritis of right knee

    evidence of rheumatoid polyneuropathy with rheumatoid arthritis of right knee.

  • Rheumatoid Polyneuropathy with Rheumatoid Arthritis of Right Shoulder|Rheumatoid polyneuropathy with rheumatoid arthritis of right shoulder

    evidence of rheumatoid polyneuropathy with rheumatoid arthritis of right shoulder.

  • Rheumatoid Polyneuropathy with Rheumatoid Arthritis of Right Wrist|Rheumatoid polyneuropathy with rheumatoid arthritis of right wrist

    evidence of rheumatoid polyneuropathy with rheumatoid arthritis of right wrist.

  • Rheumatoid Polyneuropathy with Rheumatoid Arthritis of Unspecified Ankle and Foot|Rheumatoid polyneuropathy with rheumatoid arthritis of unspecified ankle and foot

    evidence of rheumatoid polyneuropathy with rheumatoid arthritis of unspecified ankle and foot.

  • Rheumatoid Polyneuropathy with Rheumatoid Arthritis of Unspecified Elbow|Rheumatoid polyneuropathy with rheumatoid arthritis of unspecified elbow

    evidence of rheumatoid polyneuropathy with rheumatoid arthritis of unspecified elbow.

  • Rheumatoid Polyneuropathy with Rheumatoid Arthritis of Unspecified Hand|Rheumatoid polyneuropathy with rheumatoid arthritis of unspecified hand

    evidence of rheumatoid polyneuropathy with rheumatoid arthritis of unspecified hand.

  • Rheumatoid Polyneuropathy with Rheumatoid Arthritis of Unspecified Hip|Rheumatoid polyneuropathy with rheumatoid arthritis of unspecified hip

    evidence of rheumatoid polyneuropathy with rheumatoid arthritis of unspecified hip.

  • Rheumatoid Polyneuropathy with Rheumatoid Arthritis of Unspecified Knee|Rheumatoid polyneuropathy with rheumatoid arthritis of unspecified knee

    evidence of rheumatoid polyneuropathy with rheumatoid arthritis of unspecified knee.

  • Rheumatoid Polyneuropathy with Rheumatoid Arthritis of Unspecified Shoulder|Rheumatoid polyneuropathy with rheumatoid arthritis of unspecified shoulder

    evidence of rheumatoid polyneuropathy with rheumatoid arthritis of unspecified shoulder.

  • Rheumatoid Polyneuropathy with Rheumatoid Arthritis of Unspecified Site|Rheumatoid polyneuropathy with rheumatoid arthritis of unspecified site

    evidence of rheumatoid polyneuropathy with rheumatoid arthritis of unspecified site.

  • Rheumatoid Polyneuropathy with Rheumatoid Arthritis of Unspecified Wrist|Rheumatoid polyneuropathy with rheumatoid arthritis of unspecified wrist

    evidence of rheumatoid polyneuropathy with rheumatoid arthritis of unspecified wrist.

  • Systemic Sclerosis with Polyneuropathy|Systemic sclerosis with polyneuropathy

    evidence of systemic sclerosis with polyneuropathy.

  • Toxic Polyneuropathy

    polyneuropathy that is caused by exposure to toxins.

  • Type 1 Diabetes Mellitus with Diabetic Polyneuropathy|Type 1 diabetes mellitus with diabetic polyneuropathy

    evidence of type 1 diabetes mellitus with diabetic polyneuropathy.

  • Type 2 Diabetes Mellitus with Diabetic Autonomic Polyneuropathy|Type 2 diabetes mellitus with diabetic autonomic (poly)neuropathy

    evidence of type 2 diabetes mellitus with diabetic autonomic polyneuropathy.

  • Type 2 Diabetes Mellitus with Diabetic Polyneuropathy|Type 2 diabetes mellitus with diabetic polyneuropathy

    evidence of type 2 diabetes mellitus with diabetic polyneuropathy.

  • Congenital Facial Nerve Palsy

    partial or complete paralysis of the facial muscles of one side of an individual's face that is present at birth. it is caused by damage to the seventh cranial nerve.

  • Acute Motor and Sensory Axonal Neuropathy|Acute Motor And Sensory Axonal Neuropathy|Acute Motor-Sensory Axonal Neuropathy|Acute Motor-Sensory Axonal Neuropathy

    a subtype of guillain-barre syndrome that targets sensory motor axons, and is characterized by acute onset of quadriparesis, distal sensory loss, areflexia, and respiratory insufficiency.

  • Acute Motor Axonal Neuropathy|AMAN

    a subtype of guillain-barre syndrome that targets motor axons, and is characterized by symmetric limb weakness, diffuse areflexia, facial and oropharyngeal muscle weakness, and respiratory insufficiency.

  • Axonal Neuropathy

    any nerve disorder affecting the axon of a nerve.

  • GAN wt Allele|GAN1|Giant Axonal Neuropathy (Gigaxonin) Gene|Gigaxonin wt Allele|KLHL16

    human gan wild-type allele is located in the vicinity of 16q24.1 and is approximately 65 kb in length. this allele, which encodes gigaxonin protein, is involved in both ubiquitination and neurofilament structure. mutation of the gene is associated with giant axonal neuropathy.

  • Giant Axonal Neuropathy

    a rare inherited disorder affecting the neurofilaments. it is caused by mutations in the gan gene. it is characterized by the presence of abnormally large nerve cell axons. signs and symptoms include difficulty walking, sensory disturbances, lack of motor coordination and abnormal reflexes in the limbs.

  • Spinocerebellar Ataxia, Autosomal Recessive, with Axonal Neuropathy 2|AOA2|Ataxia with Oculomotor Apraxia Type 2|SCAN2

    an autosomal recessive condition caused by mutation(s) in the setx gene, encoding probable helicase senataxin. it is characterized by juvenile onset progressive cerebellar ataxia, axonal sensorimotor peripheral neuropathy, and increased concentrations of serum alpha-fetoprotein. oculomotor apraxia is common, but is not always present.

  • Acute Inflammatory Demyelinating Polyradiculoneuropathy|AIDP|Acute Inflammatory Demyelinating Polyradiculopathy|Acute Inflammatory Demyelinating Polyradiculopathy

    a subtype of guillain-barre syndrome that targets the myelin sheath, and is characterized by progressive weakness, distal paresthesia and autonomic dysfunction.

  • Polyradiculopathy

    a radiculopathy that is present in more than one nerve.

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 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About G62.9Overview

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, 2025 through September 30, 2026.

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.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.