Depth by Round 2028 category,
and why that is the whole argument.

We work one product category at a time, and the categories are the ones Medicare reprices in Round 2028. Each is a bounded list of HCPCS codes, small enough for one person to hold in their head, and that is the reason this is a product of its own rather than a saved filter on a market-wide index.

The case for going narrow is easiest to see in a single fact. A4297 and A4353 share one 200-unit monthly ceiling, and that ceiling did not double when the January 2026 hydrophilic split created a second kit code. An index built to store a rate against a code has nowhere to put that, because it is not a rate. It is a rule about two rates, and it only gets modelled by somebody looking at one category instead of at five million codes.

That same split is the second reason. A4295, A4296 and A4297 came into being in January 2026, and a split like that changes what you may bill, what you have to document, and which fee-schedule line applies, all in one quarter. A product indexing the whole market sees three new rows appear. A product built category by category sees an event, and can say what it means for the codes you actually ship.

The third reason is where the evidence lives. One real question about one of these codes is answered across four places, which are the coverage database CMS publishes, the classification guidance PDAC publishes, the documentation article the DME MAC publishes, and the quarterly DMEPOS fee schedule. None of the four agrees with the others about where the answer is.

Two of those four resist software. The coverage database blocks automated tools. One MAC publishes its guidance as a PDF that will not parse. Breadth is no help with either. Somebody has to sit with each source, for each code, and keep sitting with it as the sources change, and that is only affordable when the work is done one category at a time.

The commercial half comes from the national payers named on the payer pages, which publish machine-readable files under the Transparency in Coverage rule. They are not the market. They are the set whose files are read for the codes we serve, and each one is named on its own page with the figures it reports about itself.

Round 2028 is why the categories are these ones. Medicare will set a single payment amount for each of them, and the commercial rates read today are the before picture that repricing will be measured against. So the whole argument is depth in the categories nobody has bothered to model, rather than breadth across a market where these codes are a rounding error. It is written down here so you can judge it before you talk to us.