CPT 90853 + ICD-10 F50.02: Anorexia nervosa, binge-eating/purging type
Group psychotherapy billed with Anorexia nervosa, binge-eating/purging type — documentation requirements, denial reasons, modifiers, and reimbursement context.
CPT Code
90853
Group psychotherapy
ICD-10 Code
F50.02
Anorexia nervosa, binge-eating/purging type
Common Modifiers
Compatibility Notes
Group therapy for AN binge-eating/purging type in structured programs. Medical monitoring is critical given purging-related risks. Prior authorization required. Per-participant billing with individual diagnosis and medical status documentation.
Documentation Required
- ✓Per-participant attendance and AN binge-eating/purging type diagnosis
- ✓Medical safety monitoring per participant
- ✓Group eating disorder content
- ✓Prior authorization per participant
Common Denial Reasons
- ✗Missing medical monitoring
- ✗No prior authorization
- ✗Group billed as single claim
Applicable Modifiers
Reimbursement Notes
OON UCR $50–$90 per participant. Eating disorder parity laws in many states protect against disproportionate benefit restrictions for group eating disorder treatment.
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