2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Nervous System And Sense Organs 320-389 > Hereditary And Degenerative Diseases Of The Central Nervous System 330-337 > Parkinson's Disease 332.* >  2008 ICD-9-CM Diagnosis 332.1
Secondary parkinsonism- 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)
- 332.1 is a specific code that can be used to specify a diagnosis
- 332.1 contains 3 index entries
- View the ICD-9-CM Volume 1 332.* hierarchy
332.1 also known as:- Neuroleptic-induced Parkinsonism
- Parkinsonism due to drugs
Use additional E code to identify drug, if drug-induced 332.1 excludes: - Parkinsonism (in):
- Huntington's disease (333.4)
- progressive supranuclear palsy (333.0)
- Shy-Drager syndrome (333.0)
- syphilitic (094.82)
Index entries containing 332.1:- Parkinsonism (arteriosclerotic) (idiopathic) (primary) 332.0
- due to drugs
 332.1
- neuroleptic-induced 332.1
- secondary 332.1
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