Is ICD-10-CM code F20 billable?

No, F20 (Schizophrenia) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code F20 belong to?

F20 belongs to Chapter 5 of the ICD-10-CM tabular list: F01–F99 (Mental, Behavioral and Neurodevelopmental Disorders).

F20

Non-Billable

ChapterF01–F99

Rankcategory

Description

Schizophrenia

About ICD-10-CM code F20

F20 is the ICD-10-CM diagnosis code for Schizophrenia. It sits in F01-F99 Mental, Behavioral and Neurodevelopmental Disorders, within Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders (F20-F29). F20 is not billable on its own, coders must choose one of its more specific child codes instead.

Use a more specific code (6 billable, 1 non-billable)

F20.0Paranoid schizophrenia F20.1Disorganized schizophrenia F20.2Catatonic schizophrenia F20.3Undifferentiated schizophrenia F20.5Residual schizophrenia F20.8Other schizophreniahas subcodes F20.9Schizophrenia, unspecified

Metadata & Insights

•Non-billable category (requires more specific sub-code).
•Chapter 5: Mental, Behavioral and Neurodevelopmental Disorders (F01-F99).

CH5 Parent Instructions

Includes

disorders of psychological development

Excludes2(Not included here. Code separately if applicable.)

symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)

Instructional Notes

Excludes1(Not coded here. Use a different code.)

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)

Excludes2(Not included here. Code separately if applicable.)

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)

Use Additional Code

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

Clinical Hierarchy

BillableHas subcodes

CH5Mental, Behavioral and Neurodevelopmental disorders (F01-F99)

F20-F29Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders (F20-F29)

F20SchizophreniaNot billable

F20.0Paranoid schizophreniaBillable

F20.1Disorganized schizophreniaBillable

F20.2Catatonic schizophreniaBillable

F20.3Undifferentiated schizophreniaBillable

F20.5Residual schizophreniaBillable

F20.8Other schizophreniaSubcodes

F20.9Schizophrenia, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to F20:

chapterCH5

Mental, Behavioral and Neurodevelopmental disorders (F01-F99)

View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

Find Procedures (ICD-10-PCS)

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