2025 ICD-10-CM Diagnosis Code F20.0

Paranoid schizophrenia

• F20.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
• The 2025 edition of ICD-10-CM F20.0 became effective on October 1, 2024.
• This is the American ICD-10-CM version of F20.0 – other international versions of ICD-10 F20.0 may differ.

Applicable To

• Paraphrenic schizophrenia

Type 1 Excludes

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

The following code(s) above F20.0 contain annotation back-references

 that may be applicable to F20.0:

• F01-F99  Mental, Behavioral and Neurodevelopmental disorders
• F20  Schizophrenia

Approximate Synonyms

• Acute exacerbation of chronic paranoid schizophrenia
• Acute exacerbation of subchronic paranoid schizophrenia
• Chronic paranoid schizophrenia
• Schizophrenia with acute exacerbation
• Schizophrenia, paranoid
• Schizophrenia, paranoid, chronic
• Schizophrenia, paranoid, subchronic
• Subchronic paranoid schizophrenia

Clinical Information

• A chronic form of schizophrenia characterized primarily by the presence of persecutory or grandiose delusions, often associated with hallucination.
• A subtype of schizophrenia characterized by prominent delusions (typically persecutory or grandiose) or hallucinations in the context of a relative preservation of cognitive functioning and affect.
• Psychotic behavior accompanied simultaneously by persecutory or grandiose delusions (paranoia) and hallucinations (schizophrenia); delusional jealousy may be present.
• Type of schizophrenia characterized by grandiosity, suspiciousness, and delusions of persecution, often with hallucinations.

ICD-10-CM F20.0 is grouped within Diagnostic Related Group(s) (MS-DRG v42.0):

• 885 Psychoses

Convert F20.0 to ICD-9-CMCode History

• 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
• 2017 (effective 10/1/2016): No change
• 2018 (effective 10/1/2017): No change
• 2019 (effective 10/1/2018): No change
• 2020 (effective 10/1/2019): No change
• 2021 (effective 10/1/2020): No change
• 2022 (effective 10/1/2021): No change
• 2023 (effective 10/1/2022): No change
• 2024 (effective 10/1/2023): No change
• 2025 (effective 10/1/2024): No change

Code annotations containing back-references to F20.0:

• Type 1 Excludes: F22
• Type 2 Excludes: F60.0

Diagnosis Index entries containing back-references to F20.0:

• Paranoid
  • schizophrenia F20.0
• Paraphrenia, paraphrenic (late) F22
  • schizophrenia F20.0
• Psychosis, psychoticF29
  • paranoid (climacteric) (involutional) (menopausal) F22
    • schizophrenic F20.0
• Schizophrenia, schizophrenicF20.9
  • paranoid F20.0 (type)
  • paraphrenic F20.0