F48.1 ICD-10-CM

ICD-10-CM code F48.1 describes depersonalization/derealization disorder. Persistent or recurrent experiences of unreality or detachment from self or surroundings. It is a billable, specific code valid for claim submission. It is grouped under the “Anxiety, Trauma & Stress-Related Disorders” section of the mental, behavioral, and neurodevelopmental disorders chapter.

When to use F48.1

Use this group for phobias, panic, generalized anxiety, OCD, PTSD, acute and adjustment disorders, and dissociative and somatic symptom disorders. Match the code to the specific syndrome and document the precipitating trigger where relevant. For F48.1 specifically, persistent or recurrent experiences of unreality or detachment from self or surroundings.

Documentation & billing

Document the specific syndrome, severity or frequency, and for trauma- or stress-related codes the precipitating event. For somatic symptom and pain disorders, note the psychological factors involved.

Common pitfalls

• Using unspecified anxiety (F41.9) when criteria for a specific disorder are met.
• Coding PTSD under a generic anxiety or stress code.
• Failing to specify the phobia type (animal, situational, or blood-injection-injury).

Common search terms for F48.1

Clinicians often look up F48.1 using plain-language terms. This code maps to:

Frequently asked questions