ICD-10: G90

Disorders of autonomic nervous system

Additional Information

Treatment Guidelines

Disorders of the autonomic nervous system (ANS), classified under ICD-10 code G90, encompass a range of conditions that affect the involuntary functions of the body, including heart rate, blood pressure, digestion, and temperature regulation. The management of these disorders can be complex and often requires a multidisciplinary approach. Below, we explore standard treatment strategies for G90 disorders, including pharmacological, non-pharmacological, and supportive therapies.

Overview of Autonomic Nervous System Disorders

The autonomic nervous system is divided into three main components: the sympathetic, parasympathetic, and enteric nervous systems. Disorders in this system can lead to symptoms such as orthostatic hypotension, abnormal heart rates, gastrointestinal dysmotility, and temperature regulation issues. Common conditions under this classification include:

  • Autonomic neuropathy
  • Postural orthostatic tachycardia syndrome (POTS)
  • Neurogenic bladder
  • Multiple system atrophy (MSA)

Standard Treatment Approaches

1. Pharmacological Treatments

Pharmacotherapy is often the first line of treatment for managing symptoms associated with autonomic disorders. The choice of medication depends on the specific symptoms and underlying conditions:

  • Fludrocortisone: This mineralocorticoid is commonly used to increase blood volume and help manage orthostatic hypotension, particularly in conditions like POTS[1].
  • Midodrine: An alpha-agonist that helps raise blood pressure by constricting blood vessels, useful for patients experiencing severe orthostatic hypotension[2].
  • Beta-blockers: These may be prescribed to manage tachycardia and improve heart rate variability in patients with POTS[3].
  • Antidepressants: Certain antidepressants, such as SSRIs, can help manage symptoms of autonomic dysfunction, particularly in cases where anxiety or depression is present[4].
  • Gastrointestinal agents: Medications like prokinetics may be used to address gastrointestinal dysmotility, a common issue in autonomic disorders[5].

2. Non-Pharmacological Treatments

In addition to medications, various non-pharmacological strategies can be beneficial:

  • Physical Therapy: Tailored exercise programs can improve cardiovascular fitness and help manage symptoms of orthostatic intolerance. Gradual increases in activity levels are often recommended[6].
  • Dietary Modifications: Increased salt and fluid intake can help expand blood volume and improve blood pressure stability. Patients are often advised to consume a high-salt diet if not contraindicated[7].
  • Compression Garments: Wearing compression stockings can help prevent blood pooling in the legs, thereby alleviating symptoms of orthostatic hypotension[8].
  • Lifestyle Changes: Patients are encouraged to avoid prolonged standing, stay hydrated, and engage in regular physical activity to enhance overall autonomic function[9].

3. Supportive Therapies

Supportive care is crucial for managing chronic symptoms and improving quality of life:

  • Patient Education: Educating patients about their condition and self-management strategies is essential. Understanding triggers and symptom management can empower patients[10].
  • Psychological Support: Counseling or support groups can help patients cope with the emotional and psychological impacts of living with chronic autonomic disorders[11].
  • Multidisciplinary Care: Collaboration among specialists, including neurologists, cardiologists, and physical therapists, can provide comprehensive care tailored to individual patient needs[12].

Conclusion

The treatment of disorders of the autonomic nervous system (ICD-10 code G90) requires a multifaceted approach that combines pharmacological interventions, lifestyle modifications, and supportive therapies. By addressing both the physiological and psychological aspects of these disorders, healthcare providers can significantly improve patient outcomes and quality of life. Ongoing research and clinical trials continue to explore new treatment modalities, offering hope for more effective management strategies in the future.


References

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  8. [9]
  9. [10]
  10. [11]
  11. [12]

Description

The ICD-10 code G90 pertains to Disorders of the Autonomic Nervous System. This classification encompasses a variety of conditions that affect the autonomic nervous system (ANS), which is responsible for regulating involuntary bodily functions, including heart rate, blood pressure, respiration, digestion, and sexual arousal. Below is a detailed overview of the clinical description, types of disorders, symptoms, and diagnostic considerations related to G90.

Clinical Description

The autonomic nervous system is divided into three main components: the sympathetic nervous system, the parasympathetic nervous system, and the enteric nervous system. Disorders classified under G90 can arise from various etiologies, including genetic factors, autoimmune diseases, infections, and neurodegenerative conditions. These disorders can lead to significant impairment in the regulation of autonomic functions, resulting in a wide range of clinical manifestations.

Types of Disorders

  1. Autonomic Neuropathy: This condition involves damage to the nerves that control involuntary bodily functions. It can be associated with diabetes, leading to symptoms such as gastrointestinal issues, orthostatic hypotension, and sexual dysfunction.

  2. Postural Orthostatic Tachycardia Syndrome (POTS): Characterized by an excessive increase in heart rate upon standing, POTS can cause dizziness, lightheadedness, and fatigue.

  3. Neurogenic Bladder: This disorder affects bladder control due to nerve damage, leading to urinary retention or incontinence.

  4. Multiple System Atrophy (MSA): A progressive neurodegenerative disorder that affects the autonomic nervous system and can lead to severe orthostatic hypotension, bladder dysfunction, and other autonomic failures.

  5. Pure Autonomic Failure: A rare condition characterized by a gradual failure of autonomic functions, leading to symptoms such as severe orthostatic hypotension and syncope.

Symptoms

Symptoms of autonomic nervous system disorders can vary widely depending on the specific condition and the systems affected. Common symptoms include:

  • Cardiovascular Symptoms: Orthostatic hypotension, tachycardia, and syncope.
  • Gastrointestinal Symptoms: Nausea, vomiting, diarrhea, constipation, and gastroparesis.
  • Genitourinary Symptoms: Urinary incontinence, retention, and sexual dysfunction.
  • Sweating Abnormalities: Hyperhidrosis (excessive sweating) or anhidrosis (lack of sweating).
  • Temperature Regulation Issues: Difficulty in maintaining body temperature.

Diagnostic Considerations

Diagnosing disorders of the autonomic nervous system typically involves a combination of clinical evaluation, patient history, and specialized tests. Key diagnostic tools include:

  • Autonomic Function Tests: These tests assess the autonomic nervous system's response to various stimuli, including heart rate variability, blood pressure response to standing, and sweat production.
  • Tilt Table Test: This test evaluates how the body responds to changes in position, particularly in patients with suspected orthostatic hypotension or POTS.
  • Blood Tests and Imaging: To rule out underlying conditions that may contribute to autonomic dysfunction.

Conclusion

Disorders of the autonomic nervous system, classified under ICD-10 code G90, represent a diverse group of conditions that can significantly impact a patient's quality of life. Early diagnosis and management are crucial for alleviating symptoms and improving functional outcomes. Healthcare providers should consider a comprehensive approach that includes patient history, clinical evaluation, and appropriate diagnostic testing to effectively address these complex disorders.

Clinical Information

Disorders of the autonomic nervous system (ANS) encompass a range of conditions that can significantly impact a patient's quality of life. The ICD-10 code G90 is used to classify these disorders, which can manifest through various clinical presentations, signs, symptoms, and patient characteristics. Below is a detailed overview of these aspects.

Clinical Presentation

Patients with disorders of the autonomic nervous system may present with a variety of symptoms that can affect multiple organ systems. The clinical presentation often varies depending on the specific type of autonomic dysfunction, which can include:

  • Orthostatic Hypotension: A significant drop in blood pressure upon standing, leading to dizziness or fainting.
  • Gastrointestinal Symptoms: These may include constipation, diarrhea, or gastroparesis, which is delayed gastric emptying.
  • Cardiovascular Symptoms: Patients may experience palpitations, abnormal heart rates, or syncope (loss of consciousness).
  • Thermoregulatory Issues: Difficulty in regulating body temperature, leading to excessive sweating or anhidrosis (lack of sweating).
  • Urinary Symptoms: This can include urinary incontinence or retention.

Signs and Symptoms

The signs and symptoms associated with G90 disorders can be quite diverse and may include:

  • Dizziness or Lightheadedness: Often related to orthostatic hypotension.
  • Fatigue: Chronic fatigue is common among patients with autonomic dysfunction.
  • Nausea and Vomiting: Particularly in cases involving gastrointestinal dysmotility.
  • Dry Mouth or Eyes: Indicative of autonomic dysfunction affecting salivary and lacrimal glands.
  • Erectile Dysfunction: In males, this can be a significant symptom of autonomic neuropathy.
  • Skin Changes: Such as changes in color or temperature of the extremities.

Patient Characteristics

Certain patient characteristics may predispose individuals to autonomic nervous system disorders. These can include:

  • Age: Older adults are more frequently affected, as age-related changes can impact autonomic function.
  • Underlying Conditions: Patients with diabetes mellitus, autoimmune diseases, or neurodegenerative disorders (like Parkinson's disease) are at higher risk for developing autonomic dysfunction.
  • Gender: Some studies suggest that women may be more likely to experience certain types of autonomic disorders, particularly autoimmune forms.
  • Lifestyle Factors: Sedentary lifestyle, obesity, and smoking can contribute to the development of autonomic dysfunction.

Conclusion

Disorders of the autonomic nervous system, classified under ICD-10 code G90, present a complex array of clinical symptoms that can significantly affect daily living. Understanding the clinical presentation, signs, symptoms, and patient characteristics is crucial for accurate diagnosis and effective management. Early recognition and intervention can help improve patient outcomes and quality of life. If you suspect autonomic dysfunction, it is essential to consult healthcare professionals for comprehensive evaluation and tailored treatment strategies.

Approximate Synonyms

The ICD-10 code G90 pertains to "Disorders of the autonomic nervous system," which encompasses a variety of conditions affecting the autonomic nervous system (ANS). This system regulates involuntary bodily functions, including heart rate, blood pressure, digestion, and respiratory rate. Below are alternative names and related terms associated with G90 and its subcategories.

Alternative Names for G90

  1. Autonomic Nervous System Disorders: This is a direct synonym for G90, emphasizing the dysfunctions of the ANS.
  2. Dysautonomia: A term often used to describe a range of conditions that result from the malfunction of the autonomic nervous system.
  3. Autonomic Dysfunction: This term highlights the impaired functioning of the ANS, which can manifest in various symptoms and conditions.
  4. Autonomic Neuropathy: Refers specifically to nerve damage affecting the autonomic nervous system, often seen in conditions like diabetes.

The G90 code includes several specific subcategories that further define the types of autonomic disorders:

  1. G90.0 - Postural Orthostatic Tachycardia Syndrome (POTS): A condition characterized by an abnormal increase in heart rate upon standing.
  2. G90.1 - Neurogenic Bladder: A disorder affecting bladder control due to nerve damage.
  3. G90.2 - Neurogenic Bowel: A condition where nerve damage affects bowel control.
  4. G90.3 - Other Disorders of Autonomic Nervous System: This includes various unspecified disorders affecting the ANS.
  5. G90.8 - Other Specified Disorders of Autonomic Nervous System: This code is used for specific conditions that do not fall under the other categories.
  6. G90.9 - Unspecified Disorder of Autonomic Nervous System: This code is used when the specific disorder is not identified.

Common Conditions Associated with G90

  • Diabetic Autonomic Neuropathy: A complication of diabetes that affects the autonomic nerves.
  • Multiple System Atrophy (MSA): A progressive neurodegenerative disorder that affects the autonomic nervous system.
  • Familial Dysautonomia: A genetic disorder that affects the development and function of the autonomic nervous system.

Conclusion

Understanding the alternative names and related terms for ICD-10 code G90 is crucial for healthcare professionals involved in diagnosing and treating autonomic nervous system disorders. These terms not only facilitate better communication among medical practitioners but also enhance patient understanding of their conditions. If you need further details on specific disorders or their management, feel free to ask!

Diagnostic Criteria

The diagnosis of disorders of the autonomic nervous system, classified under ICD-10 code G90, involves a comprehensive evaluation of clinical symptoms, medical history, and specific diagnostic tests. Below is a detailed overview of the criteria and processes typically used for diagnosing these disorders.

Overview of Autonomic Nervous System Disorders

The autonomic nervous system (ANS) regulates involuntary bodily functions, including heart rate, blood pressure, digestion, and respiratory rate. Disorders of the ANS can lead to a variety of symptoms, including but not limited to:

  • Abnormal heart rate or blood pressure
  • Dizziness or fainting
  • Gastrointestinal issues
  • Sweating abnormalities
  • Temperature regulation problems

Diagnostic Criteria

1. Clinical Evaluation

A thorough clinical evaluation is essential for diagnosing autonomic nervous system disorders. This includes:

  • Medical History: Gathering information about the patient's symptoms, duration, and any potential triggers or exacerbating factors. A detailed family history may also be relevant, as some autonomic disorders can be hereditary.
  • Physical Examination: A comprehensive physical examination to assess vital signs, neurological function, and any signs of autonomic dysfunction.

2. Symptom Assessment

Specific symptoms that may indicate autonomic dysfunction include:

  • Orthostatic Hypotension: A significant drop in blood pressure upon standing, leading to dizziness or fainting.
  • Tachycardia or Bradycardia: Abnormal heart rates that may indicate dysregulation of autonomic control.
  • Gastrointestinal Symptoms: Such as constipation, diarrhea, or gastroparesis, which can indicate autonomic involvement in digestive processes.
  • Sweating Abnormalities: Either excessive sweating (hyperhidrosis) or lack of sweating (anhidrosis).

3. Autonomic Function Testing

To confirm a diagnosis, healthcare providers may conduct specific tests to evaluate autonomic function, including:

  • Tilt Table Test: This test assesses how the body responds to changes in position, particularly in relation to blood pressure and heart rate.
  • Heart Rate Variability Testing: Measures the variation in time between heartbeats, which can indicate autonomic regulation.
  • Sweat Testing: Evaluates the ability to sweat in response to stimuli, helping to assess sympathetic nervous system function.
  • Gastrointestinal Motility Studies: Tests that measure how well food moves through the digestive tract.

4. Laboratory Tests

In some cases, laboratory tests may be necessary to rule out other conditions that could mimic autonomic dysfunction, such as:

  • Blood tests to check for metabolic or endocrine disorders.
  • Imaging studies to assess for structural abnormalities affecting the nervous system.

5. Differential Diagnosis

It is crucial to differentiate autonomic nervous system disorders from other conditions that may present with similar symptoms. This may involve:

  • Neurological evaluations to rule out central nervous system disorders.
  • Cardiovascular assessments to exclude heart-related issues.

Conclusion

Diagnosing disorders of the autonomic nervous system (ICD-10 code G90) requires a multifaceted approach that includes a detailed clinical evaluation, symptom assessment, specialized autonomic function testing, and possibly laboratory investigations. The complexity of these disorders necessitates a thorough understanding of both the symptoms and the underlying mechanisms involved in autonomic regulation. Proper diagnosis is essential for effective management and treatment of these conditions, which can significantly impact a patient's quality of life.

Related Information

Treatment Guidelines

  • Fludrocortisone increases blood volume
  • Midodrine constricts blood vessels
  • Beta-blockers manage tachycardia
  • Antidepressants address anxiety/depression
  • Gastrointestinal agents improve motility
  • Physical Therapy improves cardiovascular fitness
  • Dietary Modifications expand blood volume
  • Compression Garments prevent blood pooling
  • Lifestyle Changes enhance overall autonomic function
  • Patient Education empowers patients
  • Psychological Support addresses emotional impacts

Description

  • Autonomic nervous system regulates involuntary functions
  • Disorders can arise from genetic factors or infections
  • Autonomic neuropathy causes gastrointestinal issues
  • Postural orthostatic tachycardia syndrome causes heart rate increase
  • Neurogenic bladder affects bladder control due to nerve damage
  • Multiple system atrophy is a progressive neurodegenerative disorder
  • Pure autonomic failure is a rare condition with severe symptoms
  • Cardiovascular symptoms include orthostatic hypotension and syncope
  • Gastrointestinal symptoms include nausea, vomiting, and gastroparesis
  • Genitourinary symptoms include urinary incontinence and retention
  • Sweating abnormalities include hyperhidrosis and anhidrosis
  • Temperature regulation issues cause difficulty maintaining body temperature
  • Autonomic function tests assess heart rate variability and blood pressure response
  • Tilt table test evaluates body's response to changes in position

Clinical Information

  • Orthostatic hypotension causes dizziness
  • Gastrointestinal symptoms include constipation diarrhea
  • Cardiovascular symptoms involve palpitations syncope
  • Thermoregulatory issues cause excessive sweating
  • Urinary symptoms include incontinence retention
  • Dizziness lightheadedness is common symptom
  • Chronic fatigue affects daily life
  • Nausea vomiting occur with gastrointestinal dysmotility
  • Dry mouth eyes indicate autonomic dysfunction
  • Erectile dysfunction affects men
  • Skin changes occur with temperature color changes
  • Age related changes increase risk of autonomic dysfunction
  • Diabetes autoimmune diseases predispose to autonomic dysfunction
  • Women are more likely affected by certain types
  • Sedentary lifestyle obesity contribute to autonomic dysfunction

Approximate Synonyms

  • Autonomic Nervous System Disorders
  • Dysautonomia
  • Autonomic Dysfunction
  • Autonomic Neuropathy
  • Postural Orthostatic Tachycardia Syndrome
  • Neurogenic Bladder
  • Neurogenic Bowel
  • Diabetic Autonomic Neuropathy
  • Multiple System Atrophy (MSA)
  • Familial Dysautonomia

Diagnostic Criteria

  • Comprehensive medical history
  • Thorough physical examination
  • Assess vital signs and neurological function
  • Symptoms: orthostatic hypotension, tachycardia/bradycardia, gastrointestinal issues, sweating abnormalities
  • Autonomic function testing: tilt table test, heart rate variability testing, sweat testing, gastrointestinal motility studies
  • Laboratory tests: blood tests, imaging studies to rule out other conditions
  • Differential diagnosis: neurological and cardiovascular assessments

Coding Guidelines

Excludes 1

  • dysfunction of the autonomic nervous system due to alcohol (G31.2)

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