U.S. ICD-10-CM · FY 2027

F42 ICD-10-CM Code: Obsessive-compulsive 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

F42

Obsessive-compulsive disorder

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

Classification

Where F42 sits

  1. 1

    Chapter 5

    Mental, Behavioral and Neurodevelopmental disorders (F01-F99)

  2. 2

    Section

    Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (F40-F48)

  3. 3

    Category F42

    Obsessive-compulsive disorder

  4. 4

    Code F42

    Obsessive-compulsive disorder

More specific choices

Codes under F42

F42 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for F42.

Code first

No “code first” instruction is listed for F42.

Use additional code

No “use additional code” instruction is listed for F42.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for F42.

Excludes2

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

  • obsessive-compulsive personality (disorder) (F60.5)
  • obsessive-compulsive symptoms occurring in depression (F32.-, F33.-)
  • obsessive-compulsive symptoms occurring in schizophrenia (F20.-)

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 F42 mean?

F42 is the FY 2027 U.S. ICD-10-CM code for “Obsessive-compulsive disorder.”

Is F42 a billable or specific ICD-10-CM code?

No. F42 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is F42 located in ICD-10-CM?

F42 is listed in Chapter 5, Mental, Behavioral and Neurodevelopmental disorders (F01-F99), within Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (F40-F48) (F40–F48), under category F42, Obsessive-compulsive disorder.

What coding notes are listed for F42?

No inclusion terms are listed for F42 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. Excludes2 notes: obsessive-compulsive personality (disorder) (F60.5); obsessive-compulsive symptoms occurring in depression (F32.-, F33.-); obsessive-compulsive symptoms occurring in schizophrenia (F20.-).

Ready to transform your clinical documentation?

Join Vero and see how effortless documentation can be.

  • No credit card required

  • Cancel anytime