ICD-9-CM 332.1 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 332.1 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
2015/16 ICD-10-CM G21.19 Other drug induced secondary parkinsonism
Or:
2015/16 ICD-10-CM G21.8 Other secondary parkinsonism
Approximate Synonyms
Drug induced parkinsonism
Neuroleptic induced parkinsonism
Neuroleptic-induced Parkinsonism
Parkinsonism due to drug
Parkinsonism due to drugs
Parkinsonism, postencephalitic
Parkinsons disease, secondary
Postencephalitic Parkinsonism
Secondary parkinsons disease
Clinical Information
Conditions which feature clinical manifestations resembling primary parkinson disease that are caused by a known or suspected condition. Examples include parkinsonism caused by vascular injury, drugs, trauma, toxin exposure, neoplasms, infections and degenerative or hereditary conditions. Clinical features may include bradykinesia, rigidity, parkinsonian gait, and masked facies. In general, tremor is less prominent in secondary parkinsonism than in the primary form. (from Joynt, Clinical Neurology, 1998, ch38, pp39-42)