2027 ICD-10-CM Diagnosis Code F20Schizophrenia

ICD-10-CM Codes›F01–F99›F20-F29›F20

ICD-10-CM F20
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

F20 is a non-billable ICD-10-CM category code for schizophrenia, so it cannot be submitted on claims. Use a more specific code from this category instead, such as F20.0, F20.1, F20.2, and F20.3.

Code Identity

ICD-10-CM Code
F20
Billable Status
No — Non-Billable Category
Code Describes
Schizophrenia
Short Description
Schizophrenia
Same as the full description in the CMS dataset.
Chapter
F20-F29
Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders

Code Classification

ChapterF01–F99Mental and behavioural disorders
SectionF20-F29Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders
CategoryF20Schizophrenia
This CodeF20Schizophrenia

Specific Coding for SchizophreniaOverview

Non-specific codes like F20 require more characters. Use one of these billable codes instead:

  • Use F20.0 for Paranoid schizophrenia

  • Use F20.1 for Disorganized schizophrenia

  • Use F20.2 for Catatonic schizophrenia

  • Use F20.3 for Undifferentiated schizophrenia

  • Use F20.5 for Residual schizophrenia

  • F20.8 for Other schizophrenia

  • Use F20.81 for Schizophreniform disorder

  • Use F20.89 for Other schizophrenia

  • Use F20.9 for Schizophrenia, unspecified

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to F20: its own notes plus those printed at Chapter 5. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From Chapter 5 (F01-F99) Mental and behavioural disorders applies to 872 codes
  • disorders of psychological development

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

On F20 itself
From Chapter 5 (F01-F99) Mental and behavioural disorders applies to 872 codes
  • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

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

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name F20, its category, or a range that includes it.

Excludes1 4

These codes carry an Excludes1 note naming F20: they are not reported together with it, unless the two conditions are unrelated.

  • F25 Schizoaffective disorders
    schizophrenia (F20.-)
  • F53 Mental and behavioral disorders associated with the puerperium, not elsewhere classified
    psychosis in schizophrenia, schizotypal, delusional, and other psychotic disorders (F20-F29)
  • R44 Other symptoms and signs involving general sensations and perceptions
    hallucinations in schizophrenia, schizotypal and delusional disorders (F20-F29)
  • R46 Symptoms and signs involving appearance and behavior
    appearance and behavior in schizophrenia, schizotypal and delusional disorders (F20-F29)

Excludes2 8

These codes carry an Excludes2 note naming F20: its condition is not part of those codes, and both may be reported when the patient has both.

  • F06.0 Psychotic disorder with hallucinations due to known physiological condition
    schizophrenia (F20.-)
  • F06.2 Psychotic disorder with delusions due to known physiological condition
    schizophrenia (F20.-)
  • F42 Obsessive-compulsive disorder
    obsessive-compulsive symptoms occurring in schizophrenia (F20.-)
  • F60.1 Schizoid personality disorder
    schizophrenia (F20.-)
  • F63.1 Pyromania
    schizophrenia (F20.-)
  • F90 Attention-deficit hyperactivity disorders
    schizophrenia (F20.-)
  • F91 Conduct disorders
    schizophrenia (F20.-)
  • F94.0 Selective mutism
    schizophrenia (F20.-)

Code First 1

These codes say to code first a condition named in the note, and F20 is one of the conditions named.

  • R41.84 Other specified cognitive deficit
    schizophrenia (F20.-)

Clinical InformationClinical

  • Schizophrenia

    a severe emotional disorder of psychotic depth characteristically marked by a retreat from reality with delusion formation, hallucinations, emotional disharmony, and regressive behavior.

Patient EducationClinical

Schizophrenia

Schizophrenia is a serious brain illness. People who have it may hear voices that aren't there. They may think other people are trying to hurt them. Sometimes they don't make sense when they talk. The disorder makes it hard for them to keep a job or take care of themselves.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About F20Overview

What is the ICD-10 code for schizophrenia?

F20 is the ICD-10-CM category for schizophrenia, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is F20 (Schizophrenia) a billable code?

No. This is a category header that groups the codes for schizophrenia, and headers cannot be submitted on claims. Claims for schizophrenia need a more specific code from this category, such as F20.0, F20.1, and F20.2.

Can F20 be reported with F23?

Not as a rule. The Excludes1 note on F20 lists "brief psychotic disorder (F23)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).

Does F20 need an additional code?

When the condition applies, yes. The Use Additional Code note reads: code, if applicable, to identify: other specified cognitive deficit (R41.84-). The additional code is reported after F20.