F20
Non-Billable

Schizophrenia

Non-Billable / Non-Specific Code

What is Schizophrenia?

ICD-10-CM F20 is the diagnosis code for Schizophrenia. This code falls under the section "Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders" within Chapter 5 — Mental, Behavioral and Neurodevelopmental disorders (F01-F99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

⛔ Excludes1
â„šī¸ Excludes2

Coding Guidelines for F20

⛔ Type 1 Excludes (Never code together)

The following conditions should never be coded at the same time as F20. They are mutually exclusive:

  • 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)

â„šī¸ Type 2 Excludes (Code separately if applicable)

The following conditions are not included in F20. If the patient has both, code each condition separately:

  • schizophrenic reaction in:
  • alcoholism (F10.15-, F10.25-, F10.95-)
  • brain disease (F06.2)
  • epilepsy (F06.2)
  • psychoactive drug use (F11-F19 with .15. .25, .95)
  • schizotypal disorder (F21)

ICD-10-CM Code Hierarchy

Understanding where F20 sits in the ICD-10-CM classification helps ensure proper coding:

Sub-Codes 7 entries
F20.0Paranoid schizophreniaBillableF20.1Disorganized schizophreniaBillableF20.2Catatonic schizophreniaBillableF20.3Undifferentiated schizophreniaBillableF20.5Residual schizophreniaBillableF20.8Other schizophreniaNon-BillableF20.81Schizophreniform disorderBillableF20.89Other schizophreniaBillableF20.9Schizophrenia, unspecifiedBillable
Related Codes

Frequently Asked Questions

Is F20 a billable ICD-10-CM code?

No, F20 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does F20 mean?

F20 is the ICD-10-CM diagnosis code for "Schizophrenia". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What section is F20 in?

F20 is located in Section F20-F29 — "Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders" within Chapter 5 of the ICD-10-CM Tabular List.

What are the sub-codes of F20?

F20 has 7 sub-code(s) that provide more specific detail: F20.0, F20.1, F20.2, F20.3, F20.5 and more.

When should I use F20?

Use F20 when the patients documented diagnosis matches "Schizophrenia" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Schizophrenia?

The ICD-10-CM code for Schizophrenia is F20.

Can F20 be used for primary diagnosis?

No, F20 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is F20 in?

F20 is in Chapter 5 of the ICD-10-CM Tabular List.

What conditions are excluded from F20?

Type 1 Excludes for F20 include: 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) and more.

Is F20 valid for 2026?

Yes, F20 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousF19.99Other psychoactive substance use, unspecified with unspecified psychoactive substance-induced disorderNext →F20.0Paranoid schizophrenia
Code Details
F20
Schizophrenia
Non-Billable / Non-Specific Code
5 — Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
F20-F29 — Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders
2026 ICD-10-CM