ICD-10-CM Code F42

Obsessive-compulsive disorder

Version 2021 Replaced Code Non-Billable Code

Not Valid for Submission

F42 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of obsessive-compulsive disorder. The code is NOT valid for the year 2021 for the submission of HIPAA-covered transactions.

ICD-10:F42
Short Description:Obsessive-compulsive disorder
Long Description:Obsessive-compulsive disorder

Consider the following ICD-10 codes with a higher level of specificity:

  • F42.2 - Mixed obsessional thoughts and acts
  • F42.3 - Hoarding disorder
  • F42.4 - Excoriation (skin-picking) disorder
  • F42.8 - Other obsessive-compulsive disorder
  • F42.9 - ... unspecified

Replaced Code

This code was replaced in the 2021 ICD-10 code set with the code(s) listed below. The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2020. This code was replaced for the FY 2021 (October 1, 2020 - September 30, 2021).

  • F42.2 - Mixed obsessional thoughts and acts
  • F42.2 - Mixed obsessional thoughts and acts
  • F42.3 - Hoarding disorder
  • F42.3 - Hoarding disorder
  • F42.8 - Other obsessive-compulsive disorder
  • F42.8 - Other obsessive-compulsive disorder
  • F42.9 - Obsessive-compulsive disorder, unspecified
  • F42.9 - Obsessive-compulsive disorder, unspecified

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code F42:

Type 2 Excludes

Type 2 Excludes
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.
  • obsessive-compulsive personality disorder F60.5
  • obsessive-compulsive symptoms occurring in depression F32 F33
  • obsessive-compulsive symptoms occurring in schizophrenia F20

Clinical Information

  • OBSESSIVE COMPULSIVE DISORDER-. an anxiety disorder characterized by recurrent persistent obsessions or compulsions. obsessions are the intrusive ideas thoughts or images that are experienced as senseless or repugnant. compulsions are repetitive and seemingly purposeful behavior which the individual generally recognizes as senseless and from which the individual does not derive pleasure although it may provide a release from tension.

Code Classification

  • Mental and behavioural disorders (F00–F99)
    • Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (F40-F48)
      • Obsessive-compulsive disorder (F42)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021

Information for Patients


Obsessive-Compulsive Disorder

Also called: OCD

Obsessive-compulsive disorder (OCD) is a type of anxiety disorder. If you have OCD, you have frequent, upsetting thoughts called obsessions. To try to control the thoughts, you feel an overwhelming urge to repeat certain rituals or behaviors. These are called compulsions.

Examples of obsessions are a fear of germs or a fear of being hurt. Compulsions include washing your hands, counting, checking on things, or cleaning. With OCD, the thoughts and rituals cause distress and get in the way of your daily life.

Researchers think brain circuits may not work properly in people who have OCD. It tends to run in families. The symptoms often begin in children or teens. Treatments include therapy, medicines, or both. One type of therapy, cognitive behavioral therapy, is useful for treating OCD.

NIH: National Institute of Mental Health

  • Obsessive-compulsive disorder (Medical Encyclopedia)

[Learn More]

Obsessive-compulsive disorder Obsessive-compulsive disorder (OCD) is a mental health condition characterized by features called obsessions and compulsions. Obsessions are intrusive thoughts, mental images, or urges to perform specific actions. While the particular obsessions vary widely, they often include fear of illness or contamination; a desire for symmetry or getting things "just right;" or intrusive thoughts involving religion, sex, or aggression. Compulsions consist of the repetitive performance of certain actions, such as checking or verifying, washing, counting, arranging, acting out specific routines, or seeking assurance. These behaviors are performed to relieve anxiety, rather than to seek pleasure as in other compulsive behaviors like gambling, eating, or sex.While almost everyone experiences obsessive feelings and compulsive behaviors occasionally or in particular contexts, in OCD they take up more than an hour a day and cause problems with work, school, or social life. People with OCD generally experience anxiety and other distress around their need to accommodate their obsessions or compulsions.About half the time, OCD becomes evident in childhood or adolescence, and most other cases appear in early adulthood. It is unusual for OCD to start after age 40. It tends to appear earlier in males, but by adulthood it is slightly more common in females. Affected individuals can experience periods when their symptoms increase or decrease in severity, but the condition usually does not go away completely.Some people with OCD have additional mental health disorders such as generalized anxiety, depression, phobias, panic disorders, or schizophrenia. OCD can also occur in people with other neurological conditions such as Tourette syndrome and similar disorders, traumatic brain injury, stroke, or dementia.
[Learn More]