Valid for Submission
G25.1 is a billable diagnosis code used to specify a medical diagnosis of drug-induced tremor. The code G25.1 is valid during the fiscal year 2022 from October 01, 2021 through September 30, 2022 for the submission of HIPAA-covered transactions.
The ICD-10-CM code G25.1 might also be used to specify conditions or terms like halothane shakes, medication-induced postural tremor, tremor due to substance abuse or tremor opiophagorum.
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 coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code G25.1:
Use Additional CodeUse Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
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 G25.1 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:
- Halothane shakes
- Medication-induced postural tremor
- Tremor due to substance abuse
- Tremor opiophagorum
Convert G25.1 to ICD-9 Code
The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code G25.1 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.
Information for Patients
What is a tremor?
A tremor is a rhythmic shaking movement in one or more parts of your body. It is involuntary, meaning that you cannot control it. This shaking happens because of muscle contractions.
A tremor is most often in your hands, but it could also affect your arms, head, vocal cords, trunk, and legs. It may come and go, or it may be constant. Tremor can happen on its own or be caused by another disorder.
What are the types of tremor?
There are several types of tremor, including
- Essential tremor, sometimes called benign essential tremor. This is the most common type. It usually affects your hands, but it can also affect your head, voice, tongue, legs, and trunk.
- Parkinsonian tremor, which is a common symptom in people who have Parkinson's disease. It is usually affects one or both hands when they are at rest, but it can affect the chin, lips, face, and legs.
- Dystonic tremor, which happens in people who have dystonia. Dystonia is a movement disorder in which you have involuntary muscle contractions. The contractions cause you to have twisting and repetitive movements. It can affect any muscle in the body.
What causes tremor?
Generally, tremor is caused by a problem in the deep parts of the brain that control movements. For most types, the cause is unknown. Some types are inherited and run in families. There can also be other causes, such as
- Neurologic disorders, including multiple sclerosis, Parkinson's disease, stroke, and traumatic brain injury
- Certain medicines, such as asthma medicines, amphetamines, caffeine, corticosteroids, and medicines used for certain psychiatric and neurological disorders
- Alcohol use disorder or alcohol withdrawal
- Mercury poisoning
- Hyperthyroidism (overactive thyroid)
- Liver or kidney failure
- Anxiety or panic
Who is at risk for tremor?
Anyone can get tremor, but it is most common in middle-aged and older adults. For certain types, having a family history raises your risk of getting it.
What are the symptoms of tremor?
Symptoms of tremor may include
- Rhythmic shaking in the hands, arms, head, legs, or torso
- Shaky voice
- Difficulty writing or drawing
- Problems holding and controlling utensils, such as a spoon
How is tremor diagnosed?
Your health care provider may use many tools to make a diagnosis:
- A medical history, which includes asking about your symptoms
- A physical exam, which includes checking
- Whether the tremor happens when the muscles are at rest or in action
- The location of the tremor
- How often you have the tremor and how strong it is
- A neurological exam, including checking for
- Problems with balance
- Problems with speech
- Increased muscle stiffness
- Blood or urine tests to look for the cause
- Imaging tests to help figure out if the cause is damage in your brain
- Tests which check your abilities to do daily tasks such as handwriting and holding a fork or cup
- An electromyogram, a test which measures involuntary muscle activity and how your muscles respond to nerve stimulation
What are the treatments for tremor?
There is no cure for most forms of tremor, but there are treatments to help manage symptoms. In some cases, the symptoms may be so mild that you do not need treatment.
Finding the right treatment depends on getting the right diagnosis of the cause. Tremor caused by another medical condition may get better or go away when you treat that condition. If your tremor is caused by a certain medicine, stopping that medicine usually makes the tremor go away.
Treatments for tremor where the cause is not found include
- Medicines. There are different medicines for the specific types of tremor. Another option is Botox injections, which can treat several different types.
- Surgery may be used for severe cases that do not get better with medicines. The most common type is deep brain stimulation (DBS).
- Physical, speech-language, and occupational therapy, which may help to control tremor and deal with the daily challenges caused by the tremor
If you find that caffeine and other stimulants trigger your tremors, it may be helpful to cut them from your diet.
NIH: National Institute of Neurological Disorders and Stroke
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