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ICD-10-CM Codes G00-G99 G20-G26 G21 G21.11
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ICD-10-CM Diagnosis Code G21.11

Effective Date: 10/01/2015 To 09/30/2025

Neuroleptic induced parkinsonism

CMS-HCC-V24 CMS-HCC-V28 RxHCC Age Gender Maternity Acute or Chronic MCC
78 -- 161 -- -- -- Acute No
Use Additional for G21.11:

  • code for adverse effect, if applicable, to identify drug (T43.3X5, T43.4X5, T43.505, T43.595)

Excludes-1 for G21.11:

  • malignant neuroleptic syndrome (G21.0)

Back-references to G21.11
  • Parkinsonism(idiopathic) (primary) G20.C
    • due to
      • drugs NEC G21.19
        • neuroleptic G21.11
      • neuroleptic induced G21.11
        • secondary G21.9
          • due to
            • drugs NEC G21.19
              • neuroleptic G21.11
          • Chapter, Section and Diagnosis Prefix for G21.11
            G00-G99 :

            Diseases of the nervous system

            G20-G26 :

            Extrapyramidal and movement disorders

            G21 :

            Secondary parkinsonism