Other drug induced secondary parkinsonism
ICD-10 G21.19 is a billable code used to indicate a diagnosis of other drug induced secondary parkinsonism.
Other drug induced secondary parkinsonism refers to a form of parkinsonism that is caused by the use of certain medications, particularly those that affect dopaminergic pathways in the brain. This condition is characterized by symptoms similar to Parkinson's disease, including tremors, rigidity, bradykinesia, and postural instability. Unlike primary Parkinson's disease, which is idiopathic, drug-induced parkinsonism is a secondary condition that arises from the pharmacological effects of specific drugs, particularly antipsychotics, antiemetics, and certain antidepressants. The pathophysiology involves the blockade of dopamine receptors, leading to an imbalance in the dopaminergic and cholinergic systems. Clinicians must carefully evaluate the patient's medication history and consider the timing of symptom onset in relation to drug exposure. Management typically involves discontinuation or adjustment of the offending medication, and in some cases, the use of anticholinergic agents or dopaminergic medications may be warranted to alleviate symptoms. Accurate diagnosis and coding are essential to ensure appropriate treatment and reimbursement.
Detailed history of neurological symptoms, medication history, and response to treatment.
Patients presenting with new-onset parkinsonism after starting antipsychotic medications.
Neurologists must differentiate between primary and secondary causes of parkinsonism.
Thorough documentation of psychiatric medications prescribed and their dosages.
Patients experiencing parkinsonism symptoms while on antipsychotic medications.
Psychiatrists should monitor for extrapyramidal side effects and adjust medications accordingly.
Used for follow-up visits to assess medication effects and adjust treatment.
Document the patient's medication history, symptoms, and treatment response.
Neurologists and psychiatrists should ensure comprehensive notes on medication management.
Common medications include antipsychotics like haloperidol and risperidone, antiemetics like metoclopramide, and certain antidepressants. It's crucial to review the patient's medication history to identify potential causes.
