G21.0 Billable Code
Malignant neuroleptic syndrome
Effective From: 10/01/2016
Chapter Classification
Chapter 6
Diseases of the nervous system (G00-G99)
Section Detail
G20-G26
Extrapyramidal and movement disorders (G20-G26)
Code Hierarchy
This code is a child of G21.
Coding Guidelines & Notes
excludes1
- neuroleptic induced parkinsonism (G21.11)
useAdditionalCode
- code for adverse effect, if applicable, to identify drug (T43.3X5, T43.4X5, T43.505, T43.595)
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