Completeness
Verify TRD/MDD diagnosis support, failed medication trials, rating-scale baseline and trend, auth dates, authorized session count, REMS setting status, observation documentation, discharge note, drug code, NDC, unit, and payer-required service code.
Contradictions
Flag session ledgers that do not match 90867/90868/90869 usage, Spravato dose and billable units that disagree, REMS monitoring missing from the billing record, or an auth approved under a retired or payer-specific drug code.
Payer approvability
Evaluate treatment-resistant depression criteria, prior therapy expectations, rating-scale severity, induction/maintenance cadence, reauthorization triggers, REMS requirements, and site-of-care rules before high-cost visits are scheduled.