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F20.0

✓ Billable

Paranoid schizophrenia

Mental, Behavioral and Neurodevelopmental disorders (F01-F99)

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Also Known As

Paraphrenic schizophrenia

❌ Excludes1

direct

Cannot be coded with F20.0

  • • involutional paranoid state (F22)
  • • paranoia (F22)

❌ Excludes1

inherited from F20

Rules from parent category F20: Schizophrenia

  • • brief psychotic disorder (F23)
  • • cyclic schizophrenia (F25.0)
  • • mood [affective] disorders with psychotic symptoms (F30.2, F31.2, F31.5, F31.64, F32.3, F33.3)
  • • schizoaffective disorder (F25.-)
  • • schizophrenic reaction NOS (F23)

⚠️ Excludes2

inherited from F20

Rules from parent category F20: Schizophrenia

  • • schizophrenic reaction in:
  • • alcoholism (F10.15-, F10.25-, F10.95-)
  • • brain disease (F06.2)
  • • epilepsy (F06.2)
  • • psychoactive drug use (F11-F19 with .15. .25, .95)
  • • schizotypal disorder (F21)

📋 Code Instructions

from F20
  • • code, if applicable, to identify:
  • • other specified cognitive deficit (R41.84-)

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Code Information

CodeF20.0
BillableYes
ParentF20
CategoryMental, Behavioral and Neurodevelopmental disorders (F01-F99)
Excludes17 rule(s)
Excludes26 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)