F48.1 — Depersonalization-derealization syndrome
F48.1 is a billable, specific ICD-10-CM code for depersonalization-derealization syndrome. It is valid for submission on a claim.
Risk adjustment
F48.1 risk-adjusts. Under the CMS-HCC V28 model it maps to these categories:
- HCC 153 Personality Disorders; Anorexia/Bulimia Nervosa0.396 RAF
- HCC 153 Personality Disorders; Anorexia/Bulimia Nervosa0.396 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.
Medicare coverage
F48.1 is named in 9 Medicare coverage policies — 8 listing it as supporting medical necessity, and 1 listing it as NOT covered. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A52434Health and Behavior Assessment/Intervention – Medical Policy Articlenot covered
- A56756Billing and Coding: Home Health - Psychiatric Care
- A56937Billing and Coding: Psychiatry and Psychology Services
- A57065Billing and Coding: Outpatient Psychiatry and Psychology Services
How F48.1 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to F48.1.
- Depersonalization(in neurotic state) (neurotic) (syndrome)
- Derealization(neurotic)
- Disorder›depersonalization
- Episode›depersonalization(in neurotic state)
- Neurosis, neurotic›depersonalization
- Psychoneurosis, psychoneurotic›depersonalization
- Syndrome›depersonalization(-derealization)
- Neurosis, neurotic›state›with depersonalization episode
- Reaction›psychoneurotic›depersonalization
- State›neurotic›with depersonalization
Related codes at this level
Codes that share F48. If F48.1 is not quite right, the correct code is usually one of these.
Questions about F48.1
- Is F48.1 a billable ICD-10-CM code?
- Yes. F48.1 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does F48.1 sit in the tabular list?
- Mental, Behavioral and Neurodevelopmental disorders (F01-F99), in the block Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (F40-F48).