Specific code 2012 ICD-9-CM Diagnosis Code 332.1
Secondary parkinsonism
  • 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).
  • You are viewing the 2012 version of ICD-9-CM 332.1.
  • More recent version(s) of ICD-9-CM 332.1: 2013 2014 2015.
Convert to ICD-10-CM: 332.1 converts approximately to:
  • 2015/16 ICD-10-CM G21.11 Neuroleptic induced parkinsonism
  • 2015/16 ICD-10-CM G21.19 Other drug induced secondary parkinsonism
  • 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
332.1 Excludes
  • Parkinsonism (in):
    • Huntington's disease (333.4)
    • progressive supranuclear palsy (333.0)
    • Shy-Drager syndrome (333.0)
    • syphilitic (094.82)
Applies To
  • Neuroleptic-induced Parkinsonism
  • Parkinsonism due to drugs
Use Additional
  • Use additional E code to identify drug, if drug-induced
ICD-9-CM Volume 2 Index entries containing back-references to 332.1:
  • Parkinsonism (arteriosclerotic) (idiopathic) (primary) 332.0
    • due to drugs 332.1
    • neuroleptic-induced 332.1
    • secondary 332.1
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 332.1 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2012 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.