2026 ICD-10-CM Diagnosis Code F20Schizophrenia
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
Code Classification
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
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Use Additional Code
- code, if applicable, to identify:
- other specified cognitive deficit R41.84
Type 1 Excludes
- 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
- schizophrenic reaction NOS F23
Type 2 Excludes
- schizophrenic reaction in:
- alcoholism F10.15 F10.25 F10.95
- brain disease F06.2
- epilepsy F06.2
- psychoactive drug use F11 F19
- schizotypal disorder F21
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
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.Schizophrenia Spectrum and Other Psychotic Disorders
marked disorders of thought (delusions, hallucinations, or other thought disorder accompanied by disordered affect or behavior), and deterioration from a previous level of functioning. individuals have one o more of the following symptoms: delusions, hallucinations, and disorganized speech. (from dsm-5)Schizophrenia, Catatonic
a type of schizophrenia characterized by abnormality of motor behavior which may involve particular forms of stupor, rigidity, excitement or inappropriate posture.Schizophrenia, Childhood
an obsolete concept, historically used for childhood mental disorders thought to be a form of schizophrenia. it was in earlier versions of dsm but is now included within the broad concept of pervasive development disorders.Schizophrenia, Disorganized
a type of schizophrenia characterized by frequent incoherence; marked loosening of associations, or grossly disorganized behavior and flat or grossly inappropriate affect that does not meet the criteria for the catatonic type; associated features include extreme social withdrawal, grimacing, mannerisms, mirror gazing, inappropriate giggling, and other odd behavior. (dorland, 27th ed)Schizophrenia, Paranoid
a chronic form of schizophrenia characterized primarily by the presence of persecutory or grandiose delusions, often associated with hallucination.Schizophrenia, Treatment-Resistant
a subset of schizophrenia with an inadequate response in target symptoms following treatment with two or more antipsychotics.Schizotypal Personality Disorder
a personality disorder in which there are oddities of thought (magical thinking, paranoid ideation, suspiciousness), perception (illusions, depersonalization), speech (digressive, vague, overelaborate), and behavior (inappropriate affect in social interactions, frequently social isolation) that are not severe enough to characterize schizophrenia.Hallucinations
subjectively experienced sensations in the absence of an appropriate stimulus, but which are regarded by the individual as real. they may be of organic origin or associated with mental disorders.
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.
