2025 ICD-10-CM Diagnosis Code F28

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Other psychotic disorder not due to a substance or known physiological condition

  • F28 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Oth psych disorder not due to a sub or known physiol cond
  • The 2025 edition of ICD-10-CM F28 became effective on October 1, 2024.
  • This is the American ICD-10-CM version of F28 – other international versions of ICD-10 F28 may differ.

Applicable To

  • Chronic hallucinatory psychosis
  • Other specified schizophrenia spectrum and other psychotic disorder

The following code(s) above F28 contain annotation back-references

 that may be applicable to F28:

  • F01-F99  Mental, Behavioral and Neurodevelopmental disorders

Approximate Synonyms

  • Persistent auditory hallucinations

ICD-10-CM F28 is grouped within Diagnostic Related Group(s) (MS-DRG v42.0):

  • 885 Psychoses
  • 974 Hiv with major related condition with mcc
  • 975 Hiv with major related condition with cc
  • 976 Hiv with major related condition without cc/mcc

Convert F28 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

Diagnosis Index entries containing back-references to F28:

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