ICD-10-CM 2027
ICD-10 code for neuroleptic induced parkinsonism
From the official ICD-10-CM alphabetic index entry “Parkinsonism (idiopathic) (primary) › neuroleptic induced”. Page updated September 29, 2026.
About coding neuroleptic induced parkinsonism
The ICD-10-CM code for neuroleptic induced parkinsonism is G21.11 (Neuroleptic induced parkinsonism).
Within G21.1 (other drug-induced secondary parkinsonism), G21.11 is specifically for neuroleptic induced parkinsonism. Related codes cover other drug induced secondary parkinsonism (G21.19).
Don't report G21.11 together with the conditions in its Excludes1 note: malignant neuroleptic syndrome (G21.0).
Use an additional code for adverse effect, if applicable, to identify drug (T43.3X5, T43.4X5, T43.505, T43.595).
Don't confuse with (Excludes1 for G21.11)
- malignant neuroleptic syndrome (G21.0)
Common questions about neuroleptic induced parkinsonism ICD-10 codes
What is the ICD-10 code for neuroleptic induced parkinsonism?
- G21.11 — Neuroleptic induced parkinsonism.
Is G21.11 billable?
- Yes. G21.11 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can G21.11 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict G21.11 as a principal diagnosis.
Is G21.11 a CC or MCC?
- G21.11 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.