CPT 90834 + ICD-10 F50.02: Anorexia nervosa, binge-eating/purging type
Psychotherapy, 45 minutes billed with Anorexia nervosa, binge-eating/purging type — documentation requirements, denial reasons, modifiers, and reimbursement context.
CPT Code
90834
Psychotherapy, 45 minutes
ICD-10 Code
F50.02
Anorexia nervosa, binge-eating/purging type
Compatibility Notes
Used for 45-minute sessions for anorexia nervosa binge-eating/purging subtype. Medical monitoring is critical given purging-related cardiac and electrolyte risks. Prior authorization required. Treatment team coordination essential.
Documentation Required
- ✓Session start and stop times confirming 38–52 minutes
- ✓AN binge-eating/purging type diagnosis
- ✓Medical stability confirmed (labs, EKG if purging active)
- ✓Treatment team coordination with physician/dietitian
- ✓Prior authorization number
Common Denial Reasons
- ✗Missing medical monitoring for purging behaviors
- ✗No prior authorization
- ✗Level of care insufficient for active purging
Applicable Modifiers
Reimbursement Notes
OON UCR $100–$165. Eating disorder parity protections apply. Purging type often requires more intensive documentation of medical safety.
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