ICD-10-CM > G00-G99 > G20-G26 > G21 > G21.0 G21.0 Malignant neuroleptic syndrome Billable/Specific Copy Code Copy Description Use Additional code for adverse effect, if applicable, to identify drug (T43.3X5, T43.4X5, T43.505, T43.595) Type 1 Excludes neuroleptic induced parkinsonism (G21.11)
ICD-10 Fast ICD-10 Fast