ICD-10-CM Code R25.1

Tremor, unspecified

Version 2020 Billable Code No Valid Principal Dx

Valid for Submission

R25.1 is a billable code used to specify a medical diagnosis of tremor, unspecified. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code R25.1 might also be used to specify conditions or terms like aspergillus clavatus tremors, chronic tremor, coarse tremor, continuous tremor, enhanced physiological tremor, fine tremor, etc

According to ICD-10-CM guidelines this code should not to be used as a principal diagnosis code when a related definitive diagnosis has been established.

Short Description:Tremor, unspecified
Long Description:Tremor, unspecified

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code R25.1:

Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code R25.1 are found in the index:


The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Aspergillus clavatus tremors
  • Chronic tremor
  • Coarse tremor
  • Continuous tremor
  • Enhanced physiological tremor
  • Fine tremor
  • Intermittent tremor
  • Massive tremor
  • O/E - coarse tremor - flapping
  • O/E - fine tremor
  • O/E - tremor of tongue
  • O/E - tremor outstretched hands
  • Passive tremor
  • Persistent tremor
  • Physiological tremor
  • Trembles
  • Tremor
  • Tremor due to central nervous system disease
  • Tremor due to orthostatic hypotension

Clinical Information

  • ATAXIA-. impairment of the ability to perform smoothly coordinated voluntary movements. this condition may affect the limbs trunk eyes pharynx larynx and other structures. ataxia may result from impaired sensory or motor function. sensory ataxia may result from posterior column injury or peripheral nerve diseases. motor ataxia may be associated with cerebellar diseases; cerebral cortex diseases; thalamic diseases; basal ganglia diseases; injury to the red nucleus; and other conditions.
  • TREMOR-. cyclical movement of a body part that can represent either a physiologic process or a manifestation of disease. intention or action tremor a common manifestation of cerebellar diseases is aggravated by movement. in contrast resting tremor is maximal when there is no attempt at voluntary movement and occurs as a relatively frequent manifestation of parkinson disease.
  • 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;131:5 10

Convert R25.1 to ICD-9

  • 781.0 - Abn involun movement NEC (Approximate Flag)

Code Classification

  • Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00–R99)
    • Symptoms and signs involving the nervous and musculoskeletal systems (R25-R29)
      • Abnormal involuntary movements (R25)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients


Tremors are unintentional trembling or shaking movements in one or more parts of your body. Most tremors occur in the hands. You can also have arm, head, face, vocal cord, trunk, and leg tremors. Tremors are most common in middle-aged and older people, but anyone can have them.

The cause of tremors is a problem in the parts of the brain that control muscles in the body or in specific parts of the body, such as the hands. They commonly occur in otherwise healthy people. They may also be caused by problems such as

  • Parkinson's disease
  • Dystonia
  • Multiple sclerosis
  • Stroke
  • Traumatic brain injury
  • Alcohol abuse and withdrawal
  • Certain medicines

Some forms are inherited and run in families. Others have no known cause.

There is no cure for most tremors. Treatment to relieve them depends on their cause. In many cases, medicines and sometimes surgical procedures can reduce or stop tremors and improve muscle control. Tremors are not life-threatening. However, they can be embarrassing and make it hard to perform daily tasks.

NIH: National Institute of Neurological Disorders and Stroke

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