Case file: a copay on a visit the plan covers in full

A $40 copay collected at check in for an annual wellness visit. Routine, plausible, and paid without a second thought.

The plan's preventive row priced that visit at no charge. The claim carried an inherently preventive code with no diagnostic component. The correct patient share was zero.

Forty dollars is not the point. The point is that this is exactly the size of error that survives, because nobody questions a small number that looks ordinary. It also tends to repeat annually.

One honest caveat, because it matters for whether you win. A wellness visit that becomes diagnostic because you mentioned a symptom can legitimately be billed differently. Argue the clean ones, where the code itself is preventive or a preventive modifier is attached, and let the genuinely ambiguous ones go.

What to ask for: a refund of the copay, citing the preventive code on the claim and your plan's preventive language.

Check your last physical. It takes two minutes.

Case files describe common billing patterns. Details are simplified and figures are for illustration. General information, not legal, medical or financial advice. Every plan is different, so check the details against your own plan documents.