2018 ICD-10-CM Diagnosis Code F21

Schizotypal disorder

Applicable To
  • Borderline schizophrenia
  • Latent schizophrenia
  • Latent schizophrenic reaction
  • Prepsychotic schizophrenia
  • Prodromal schizophrenia
  • Pseudoneurotic schizophrenia
  • Pseudopsychopathic schizophrenia
  • Schizotypal personality disorder
Type 2 Excludes
Type 2 Excludes Help
A type 2 excludes note represents "not included here". A type 2 excludes note indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. When a type 2 excludes note appears under a code it is acceptable to use both the code (F21) and the excluded code together.
  • Asperger's syndrome (
    ICD-10-CM Diagnosis Code F84.5

    Asperger's syndrome

      2016 2017 2018 Billable/Specific Code
    Applicable To
    • Asperger's disorder
    • Autistic psychopathy
    • Schizoid disorder of childhood
    F84.5
    )
  • schizoid personality disorder (
    ICD-10-CM Diagnosis Code F60.1

    Schizoid personality disorder

      2016 2017 2018 Billable/Specific Code
    Type 2 Excludes
    • Asperger's syndrome (F84.5)
    • delusional disorder (F22)
    • schizoid disorder of childhood (F84.5)
    • schizophrenia (F20.-)
    • schizotypal disorder (F21)
    F60.1
    )
The following code(s) above F21 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to F21:
  • F01-F99
    2018 ICD-10-CM Range F01-F99

    Mental, Behavioral and Neurodevelopmental disorders

    Includes
    • disorders of psychological development
    Type 2 Excludes
    • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)
    Mental, Behavioral and Neurodevelopmental disorders
Approximate Synonyms Clinical Information ICD-10-CM F21 is grouped within Diagnostic Related Group(s) (MS-DRG v35.0):

Convert F21 to ICD-9-CM

Code History
Code annotations containing back-references to F21:

Diagnosis Index entries containing back-references to F21:

ICD-10-CM Codes Adjacent To F21
F20 Schizophrenia
F20.0 Paranoid schizophrenia
F20.1 Disorganized schizophrenia
F20.2 Catatonic schizophrenia
F20.3 Undifferentiated schizophrenia
F20.5 Residual schizophrenia
F20.8 Other schizophrenia
F20.81 Schizophreniform disorder
F20.89 Other schizophrenia
F20.9 Schizophrenia, unspecified
F21 Schizotypal disorder
F22 Delusional disorders
F23 Brief psychotic disorder
F24 Shared psychotic disorder
F25 Schizoaffective disorders
F25.0 Schizoaffective disorder, bipolar type
F25.1 Schizoaffective disorder, depressive type
F25.8 Other schizoaffective disorders
F25.9 Schizoaffective disorder, unspecified
F28 Other psychotic disorder not due to a substance or known physiological condition
F29 Unspecified psychosis not due to a substance or known physiological condition

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.