2026 ICD-10-CM Diagnosis Code G25.0Essential tremor

ICD-10-CM Codes›G00–G99›G20-G26›G25

ICD-10-CM G25.0
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

G25.0 is a billable ICD-10-CM diagnosis code for essential tremor. 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 Other nervous system disorders (often hereditary or degenerative).

Code Identity

ICD-10-CM Code
G25.0
Billable Status
Yes — Valid for Submission
Code Describes
Essential tremor
Short Description
Essential tremor
Same as the full description in the CMS dataset.
Parent Code
G25
Other extrapyramidal and movement disorders

Code Classification

ChapterG00–G99Diseases of the nervous system
SectionG20-G26Extrapyramidal and movement disorders
CategoryG25Other extrapyramidal and movement disorders
This CodeG25.0Essential tremor

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Essential tremor
  • Fragile X associated tremor ataxia syndrome
  • Hereditary essential tremor
  • Isolated facial tremor
  • Isolated head tremor
  • Isolated vocal tremor
  • Premature canities
  • Progressive essential tremor, speech impairment, facial dysmorphism, intellectual disability, abnormal behavior syndrome
  • Sensorineural hearing loss, early graying, essential tremor syndrome
  • Tremor, nystagmus, duodenal ulcer syndrome

Tabular List NotesGuidance

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

Inclusion Terms

  • Familial tremor

Type 1 Excludes

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.

    • Tremor(s)
      • essential (benign)
    • Tremor(s)
      • familial
    • Tremor(s)
      • hereditary

Clinical ClassificationClinical

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

CCSR NVS006
Other nervous system disorders (often hereditary or degenerative)
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Essential Tremor

    a relatively common disorder characterized by a fairly specific pattern of tremors which are most prominent in the upper extremities and neck, inducing titubations of the head. the tremor is usually mild, but when severe may be disabling. an autosomal dominant pattern of inheritance may occur in some families (i.e., familial tremor). (mov disord 1988;13(1):5-10)

  • Essential Tremor

    a movement disorder characterized by involuntary and rhythmic shaking of parts of the body, most often the hands or arms, that can be triggered or worsened by physical or environmental stressors. essential tremor may be progressive and can be inherited in an autosomal dominant manner.

Patient EducationClinical

Tremor

A tremor is a neurological condition that includes shaking or trembling movements in one or more parts of your body. It most often affects the hands. But it can also affect the arms, legs, head, vocal cords, and torso (trunk). A tremor is involuntary, meaning that you cannot control it. It happens because of muscle contractions.

The full article covers:

  • What is a tremor?
  • What are the types of tremor?
  • What causes tremor?
  • Who is at risk for tremor?
  • What are the symptoms of tremor?
  • How is tremor diagnosed?
  • What are the treatments for tremor?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert G25.0 to ICD-9-CMHistory

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

ICD-9-CM
333.1 Tremor NEC
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 G25.0Overview

Is G25.0 (Other extrapyramidal and movement disorders) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report essential tremor on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What is the ICD-9 equivalent of G25.0?

Under the General Equivalence Mappings, essential tremor converts to ICD-9-CM 333.1 (tremor NEC). 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.