ICD-10-CM Code F28

Valid for Submission

F28 is a billable code used to specify a medical diagnosis of other psychotic disorder not due to a substance or known physiological condition. The code is valid for the fiscal year 2021 for the submission of HIPAA-covered transactions. The ICD-10-CM code F28 might also be used to specify conditions or terms like hallucinosis.

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 F28:

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.

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

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 F28 are found in the index:

• - Disorder (of) - See Also: Disease;
  • - schizophrenia spectrum and other psychotic disorder - F29
    • - specified NEC - F28

• - Hallucinosis (chronic) - F28

• - Insanity, insane - See Also: Psychosis;
  • - confusional - F28

• - Menopause, menopausal (asymptomatic) (state) - Z78.0
  • - psychosis NEC - F28

• - Psychosis, psychotic - F29
  • - hallucinatory, chronic - F28
  • - involutional - F28
  • - nonorganic - F29
    • - specified NEC - F28

• - Schizophrenia, schizophrenic - F20.9
  • - spectrum and other psychotic disorder - F29
    • - specified NEC - F28

Synonyms

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

• Hallucinosis

Convert F28 to ICD-9

• 298.9 - Psychosis NOS (Approximate Flag)

Code Classification

• Mental and behavioural disorders (F00–F99)
  • Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders (F20-F29)
    • Oth psych disorder not due to a sub or known physiol cond (F28)

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

Tools

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• Convert F28 to ICD-9