F42: Obsessive-compulsive disorder
F42.9: Obsessive-compulsive disorder, unspecified
Obsessive-compulsive disorder is a mental illness. Obsessive-compulsive disorder is where a person thinks or does things compulsively over and over again. These thoughts or actions cannot be avoided. They can be unpleasant and appear nonsensical.
Obsessive-compulsive disorder can affect what a person thinks and does, and how they act with other people. This condition has a range of different physical and mental causes.
Patient Disclaimer
The information provided on this page is for general educational purposes only. It is not intended for self-diagnosis and does not replace professional medical advice. Always consult your doctor or a qualified healthcare provider with any questions or concerns about your health.
If you see an ICD diagnosis code (e.g., on a medical report), be aware that doctors may also include additional indicators to express diagnostic certainty. Only a healthcare professional can interpret these codes accurately in the context of your individual case.
For a complete understanding of your condition and what the diagnosis means for you, please speak directly with your doctor.