ICD-10-CM 2027 diagnosis code
F20Schizophrenia
F20 is a header code, so it can't be reported by itself. Choose one of the 7 more specific codes beneath it.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About F20
F20 is the ICD-10-CM diagnosis code for schizophrenia. It belongs to block F20-F29 (schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders) and chapter 5 (mental, Behavioral and Neurodevelopmental disorders). It is a header code, so it can't be reported by itself; one of its 7 subcodes must be used instead.
To report this condition, pick the subcode that matches the documentation: F20.0 (schizophrenia), F20.1 (schizophrenia), F20.2 (schizophrenia), F20.3 (schizophrenia), F20.5 (schizophrenia), F20.8 (schizophrenia) and F20.9 (unspecified).
Don't report F20 together with the conditions in its Excludes1 note: 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.-) and 1 more.
The conditions in its Excludes2 note aren't part of F20, but may be coded alongside it if the patient has both: alcoholism (F10.15-, F10.25-, F10.95-), brain disease (F06.2), epilepsy (F06.2), psychoactive drug use (F11-F19 with .15. .25, .95) and 1 more.
Use an additional code, if applicable, to identify: other specified cognitive deficit (R41.84-).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under F20
Coding notes
- code, if applicable, to identify:
- other specified cognitive deficit (R41.84-)
Notes that apply from higher levels
Instructions written at a parent level also apply to F20.
Broader instructions also apply from Chapter 5: Mental, Behavioral and Neurodevelopmental disorders.
Codes whose notes reference F20
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about F20
Is F20 billable?
- No. F20 is a header code. Report one of its more specific subcodes instead.