Other disorders of nervous system in diseases classified elsewhere
Chapter 6:Diseases of the nervous system
ICD-10 G99 is a billable code used to indicate a diagnosis of other disorders of nervous system in diseases classified elsewhere.
The G99 code encompasses a variety of disorders affecting the nervous system that are classified under other diseases. This includes pain syndromes such as neuropathic pain, which can arise from conditions like diabetes or post-herpetic neuralgia. Autonomic disorders, which affect involuntary bodily functions, may also fall under this code, including conditions like dysautonomia. Hydrocephalus, characterized by an accumulation of cerebrospinal fluid within the ventricles of the brain, can lead to increased intracranial pressure and neurological deficits. Other nervous system disorders that may be coded under G99 include conditions resulting from systemic diseases, infections, or trauma that do not have a specific code in the ICD-10 classification. Accurate coding requires a thorough understanding of the underlying conditions and their manifestations, as well as the documentation provided by healthcare providers.
Detailed neurological examination findings, history of present illness, and any diagnostic imaging results.
Patients presenting with chronic pain syndromes, autonomic dysfunction, or post-surgical complications.
Ensure that the primary condition is clearly documented to support the use of G99.
Comprehensive pain assessments, treatment plans, and response to therapies.
Management of neuropathic pain or complex regional pain syndrome.
Document the relationship between pain syndromes and any underlying conditions to justify the use of G99.
Used for follow-up visits for patients with chronic pain syndromes.
Detailed history, examination, and medical decision-making.
Neurology and pain management specialties should ensure comprehensive documentation to support the visit level.
G99 should be used when a nervous system disorder is a consequence of a disease classified elsewhere, and the primary diagnosis is clearly documented.
