G21.0 - Malignant neuroleptic syndrome

  • Applicable to Malignant neuroleptic syndrome
  • The 2025 edition of ICD10-CM G21.0 became effective on October 1, 2024.
  • This is the American ICD10-CM version of G21.0 - other international versions of ICD10 G21.0 may differ.
  • G21.0 is a Billable / Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

Code Additional Code

  • 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)

The following codes above G21.0 contain annotation back-references that may be applicable to G21.0:

Chapter: G00-G99 Diseases of the nervous system

Section: G20-G26 Extrapyramidal and movement disorders

Category: G21 Secondary parkinsonism

syndrome icd 10
 
malignant icd 10
 
neuroleptic icd 10
 
Billable/Specific Code

Browse other similar CM codes

G21.0
 
G21.1
 
G21.11
 
G21.19
 
G21.2
 
G21.3
 
G21.4
 
G21.8
 
G21.9
 

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