Accepted answer
Model the cost across the whole route, including the parts that are not the drug: consultation fees, laboratory monitoring, shipping, and the tests you will pay for yourself.
503A and 503B differ in what they are permitted to do and what they must demonstrate. A 503A pharmacy compounds against individual prescriptions, is exempt from current good manufacturing practice requirements, and is regulated primarily at state level with USP chapter compliance as the operative standard. A 503B outsourcing facility registers federally, must comply with cGMP, may prepare without patient-specific prescriptions, and is subject to FDA inspection. The practical consequence is that a 503B preparation carries release testing and a 503A preparation generally does not.
Stated carefully, denials come in two flavours and it is worth identifying which you have. A criteria denial means the submission did not evidence something the criteria require, and it is fixed by supplying the evidence. A formulary exclusion means the plan does not cover the drug at any level for any indication, and no amount of clinical documentation changes it — the route there is a formulary exception request or an employer-level appeal.
External review of health-plan denials in the United States operates under the Affordable Care Act’s appeal provisions and, for employer self-funded plans, under ERISA; the practical significance is that an independent reviewer applies the plan’s own criteria without the plan’s involvement.
The caveat is jurisdictional. Almost everything in this area is specific to a country and often to a sub-national jurisdiction, and a confident answer that does not name a jurisdiction should be treated as describing somewhere else.
Ask for the written criteria before you submit. Everything else in the process is easier once you have them.
5I tested this on two lots and got the same answer, so at least it reproduces. – swab_stopper 8 months ago 4The timing signature is the useful part. Everything else is confounded. – u100_marks 7 months ago add a comment