OCD ICD-10-CM codes

The alphabetic index sends obsessive-compulsive disorder to F42.9 (obsessive-compulsive disorder, unspecified), so that is the code for OCD documented without further detail. F42.2 (mixed obsessional thoughts and acts) is the DSM-5 crosswalk and is appropriate when the provider documents both obsessions and compulsions. F42.8 (other obsessive-compulsive disorder) is where obsessive-compulsive neurosis or reaction indexes.

Two related disorders have their own codes in F42: hoarding disorder (F42.3) and excoriation or skin-picking disorder (F42.4). Trichotillomania is coded to F63.3 in the impulse disorders category, and body dysmorphic disorder is F45.22. These are separate diagnoses and are reported with an F42 code only when both conditions are documented.

Obsessive-compulsive personality disorder is F60.5 in the personality disorder category and should not be coded to F42. Obsessive-compulsive symptoms caused by a medical condition are F06.8 with the physiological condition coded first. Tic disorders that occur with OCD, such as Tourette's disorder (F95.2), are coded in addition.