ICD-10-CM Code F21

Schizotypal disorder

Version 2021 Billable Code

Valid for Submission

F21 is a billable code used to specify a medical diagnosis of schizotypal disorder. The code is valid for the fiscal year 2021 for the submission of HIPAA-covered transactions. The ICD-10-CM code F21 might also be used to specify conditions or terms like acute exacerbation of chronic latent schizophrenia, acute exacerbation of subchronic latent schizophrenia, borderline schizophrenia, chronic latent schizophrenia, latent schizophrenia, latent schizophrenia in remission, etc

ICD-10:F21
Short Description:Schizotypal disorder
Long Description:Schizotypal disorder

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code F21:

Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Borderline schizophrenia
  • Latent schizophrenia
  • Latent schizophrenic reaction
  • Prepsychotic schizophrenia
  • Prodromal schizophrenia
  • Pseudoneurotic schizophrenia
  • Pseudopsychopathic schizophrenia
  • Schizotypal personality disorder

Type 2 Excludes

Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
  • Asperger's syndrome F84.5
  • schizoid personality disorder F60.1

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code F21 are found in the index:


Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Acute exacerbation of chronic latent schizophrenia
  • Acute exacerbation of subchronic latent schizophrenia
  • Borderline schizophrenia
  • Chronic latent schizophrenia
  • Latent schizophrenia
  • Latent schizophrenia in remission
  • Schizophrenic prodrome
  • Schizotypal personality disorder
  • Subchronic latent schizophrenia
  • Subchronic schizophrenia with acute exacerbations

Convert F21 to ICD-9

  • 301.22 - Schizotypal person dis

Code Classification

  • Mental and behavioural disorders (F00–F99)
    • Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders (F20-F29)
      • Schizotypal disorder (F21)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021

Information for Patients


Personality Disorders

Personality disorders are a group of mental illnesses. They involve long-term patterns of thoughts and behaviors that are unhealthy and inflexible. The behaviors cause serious problems with relationships and work. People with personality disorders have trouble dealing with everyday stresses and problems. They often have stormy relationships with other people.

The cause of personality disorders is unknown. However, genes and childhood experiences may play a role.

The symptoms of each personality disorder are different. They can mild or severe. People with personality disorders may have trouble realizing that they have a problem. To them, their thoughts are normal, and they often blame others for their problems. They may try to get help because of their problems with relationships and work. Treatment usually includes talk therapy and sometimes medicine.

  • Antisocial personality disorder (Medical Encyclopedia)
  • Avoidant personality disorder (Medical Encyclopedia)
  • Borderline personality disorder (Medical Encyclopedia)
  • Dependent personality disorder (Medical Encyclopedia)
  • Histrionic personality disorder (Medical Encyclopedia)
  • Narcissistic personality disorder (Medical Encyclopedia)
  • Obsessive-compulsive personality disorder (Medical Encyclopedia)
  • Paranoid personality disorder (Medical Encyclopedia)
  • Personality disorders (Medical Encyclopedia)
  • Schizoid personality disorder (Medical Encyclopedia)
  • Schizotypal personality disorder (Medical Encyclopedia)

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