F21

ICD-10Billable

Schizotypal disorder

Official ICD-10-CM descriptor (FY2026)

Schizotypal disorder

F21 is valid for submission on a claim — CMS flags it as a billable, specific code.

Inclusion terms

  • Borderline schizophrenia
  • Latent schizophrenia
  • Latent schizophrenic reaction
  • Prepsychotic schizophrenia
  • Prodromal schizophrenia
  • Pseudoneurotic schizophrenia
  • Pseudopsychopathic schizophrenia
  • Schizotypal personality disorder

Excludes2

Not included here. The condition is not part of this code, but a patient may have both, and both codes may be reported together.

  • Asperger's syndrome (F84.5)
  • schizoid personality disorder (F60.1)

Where this code sits

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.

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