Disorder of the autonomic nervous system, unspecified
ICD-10 G90.9 is a billable code used to indicate a diagnosis of disorder of the autonomic nervous system, unspecified.
Disorders of the autonomic nervous system (ANS) encompass a range of conditions that affect the involuntary functions of the body, including heart rate, blood pressure, digestion, and temperature regulation. The ANS is divided into the sympathetic and parasympathetic systems, which work together to maintain homeostasis. When these systems are disrupted, patients may experience a variety of symptoms, including orthostatic hypotension, gastrointestinal dysmotility, and abnormal sweating. The unspecified nature of G90.9 indicates that the specific type of autonomic disorder has not been clearly defined, which can complicate diagnosis and treatment. Commonly associated conditions include pain syndromes, where dysregulation of autonomic functions can exacerbate pain perception, and hydrocephalus, which may lead to autonomic dysfunction due to increased intracranial pressure. Accurate diagnosis often requires a comprehensive evaluation, including patient history, physical examination, and possibly autonomic testing. The complexity of these disorders necessitates a multidisciplinary approach for effective management.
Detailed neurological examination findings, patient history, and results from autonomic testing.
Patients presenting with unexplained syncope, orthostatic hypotension, or gastrointestinal dysmotility.
Consideration of comorbid conditions that may affect autonomic function, such as diabetes or multiple sclerosis.
Comprehensive pain assessments, including pain scales and descriptions of pain characteristics.
Patients with chronic pain syndromes where autonomic dysfunction may exacerbate pain symptoms.
Documentation should clearly link autonomic symptoms to pain management strategies.
Used when specific autonomic testing is performed but not listed under a specific CPT code.
Detailed report of the procedure and rationale for testing.
Neurology specialists should ensure that the procedure aligns with the diagnosis.
To support the use of G90.9, document all relevant symptoms, patient history, and any diagnostic tests performed. Ensure that the clinical rationale for the diagnosis is clear and that it aligns with the treatment provided.
