U.S. ICD-10-CM · FY 2027

F20.81 ICD-10-CM Code: Schizophreniform disorder

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

F20.81

Schizophreniform disorder

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where F20.81 sits

  1. 1

    Chapter 5

    Mental, Behavioral and Neurodevelopmental disorders (F01-F99)

  2. 2

    Section

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

  3. 3

    Category F20

    Schizophrenia

  4. 4

    Subcategory F20.8

    Other schizophrenia

  5. 5

    Code F20.81

    Schizophreniform disorder

Documentation details

Notes for this code

Inclusion terms

  • Schizophreniform psychosis NOS

Code first

No “code first” instruction is listed for F20.81.

Use additional code

No “use additional code” instruction is listed for F20.81.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for F20.81.

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for F20.81.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code F20.81 mean?

F20.81 is the FY 2027 U.S. ICD-10-CM code for “Schizophreniform disorder.”

Is F20.81 a billable or specific ICD-10-CM code?

Yes. In the FY 2027 reference data used on this page, F20.81 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.

Where is F20.81 located in ICD-10-CM?

F20.81 is listed in Chapter 5, Mental, Behavioral and Neurodevelopmental disorders (F01-F99), within Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders (F20-F29) (F20–F29), under category F20, Schizophrenia and subcategory F20.8, Other schizophrenia.

What coding notes are listed for F20.81?

Its listed inclusion terms are Schizophreniform psychosis NOS. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.

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