What to do
Get your procedure codes first
Ask the surgeon's billing office for the CPT codes for your surgical plan. Without the codes the files are unusable.
Find your insurer's transparency index
Insurers publish an index page linking the machine-readable files. It is usually reachable from the plan's public site rather than the member portal.
Expect the files to be enormous
These are not spreadsheets. They are very large structured files, often split by plan and region, and working with one usually means filtering it rather than opening it.
Pull the in-network rates for your codes
What you want is what the plan pays in-network surgeons in your region for the same codes. That is your comparison number.
Use it as a negotiation number, not an entitlement
The rate a plan pays in-network is not what it owes out-of-network. It is evidence about what the service is worth to this plan, which is what a single case agreement negotiation turns on.
Give the number to whoever is negotiating
Often that is the surgeon's billing office rather than you. A concrete comparable rate changes that conversation more than anything you can say about fairness.
If you find nothing, that is a result
Read this before you conclude your search failed. The rules let an out-of-network file OMIT any item that falls below a claim-count threshold, and for gender-affirming surgery codes a great many plan-and-provider combinations sit under it. The absence is built into the format.
So an empty result has two readings and only one of them is right. It does NOT mean the plan pays nobody for this, and it does not mean you filtered wrongly. What it is consistent with is almost nobody in network billing these codes — which is corroboration for the network-adequacy argument the rest of this site is built on. A null result here is evidence for that page, not a dead end.
Say it that way if you use it: the plan's own published file contains no in-network rate for this code in my area, which is what you would expect if no participating provider performs it.
When this is worth the effort
It is worth it when a single case agreement is being negotiated and the plan's offer looks arbitrary, or when an out-of-network allowed amount leaves you with a very large balance. It is not worth it for a medical-necessity denial, where rates are irrelevant.
The honest difficulty
This is the most technical page on the site. The files are designed for machines, and doing this well usually means someone comfortable with large data files. If that is not you, the same argument can be made more loosely by asking the plan directly what it pays in-network for the codes, and noting in writing when it refuses to say.
Common questions
- Does the published rate mean my plan has to pay that out of network?
- No. It is evidence for a negotiation, not an entitlement. Out-of-network payment is set by your plan terms or by an agreement.
- Is there an easier version of this?
- Yes. Ask the plan in writing what it pays in-network for your procedure codes in your area. A refusal to answer is itself useful on the record.
Where to go next
Sources for the legal points on this page
- Transparency in Coverage machine-readable files
Federal · effective ongoing
45 CFR 147.212(b) — three machine-readable files; omission below 20 claims at (b)(1)(ii)(C)
Status: settled · source-checked 2026-08-06 · primary source verified: 2026-08-06