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G21.11 - Neuroleptic induced parkinsonism


The ICD 10 Code for Neuroleptic induced parkinsonism is listed as G21.11.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: G21.11
Description: Neuroleptic induced parkinsonism
  • Use additional code for adverse effect, if applicable, to identify drug (T43.3X5, T43.4X5, T43.505, T43.595)
  • Excludes1: malignant neuroleptic syndrome (G21.0)
Diagnostic Related Groups
(MS-DRG v30.0)
056 - Degenerative Nervous System Disorders W Mcc
057 - Degenerative Nervous System Disorders W/o Mcc
Chapter Diseases of the nervous system (G00-G99)
Block Extrapyramidal and movement disorders (G20-G26)
Parent G21.1 - Other drug-induced secondary parkinsonism
ICD-9-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD 9 Dx Code: 332.1 - Secondary parkinsonism (approximate)
ICD-10-CM Siblings (same level / similar specificity) of G21.11:
G21.19 - Other drug induced secondary parkinsonism