Wyoming's external review covers one kind of denial

Medical necessity, and only medical necessity

Wyoming draws the boundary more narrowly than most states. External review is available for insurance claims denied for medical necessity; it is not a general appeal route for every kind of refusal. Before anything else, read what the carrier actually said it was denying for — a coding rejection, a benefit exclusion or an eligibility problem does not become a medical-necessity dispute because the care was necessary.

The request goes to the carrier

Unlike states that route external review through the regulator, Wyoming has the covered person or their assigned representative submit the request to the health insurer after the insurer's final denial. The Department licenses the review organizations and receives the outcome, but the request itself starts at the carrier — so the carrier's own instructions on the denial notice are the operative ones.

• Filing window: no later than 120 days from the date of the carrier's final denial.
• Precondition: all levels of internal appeal or grievance exhausted.
• Filed with: the health insurance carrier.
• Cost to the covered person: none.

45 days, and three people get told

Within 45 days after the date of receipt of the request for external review, the assigned independent review organization must provide written notice of its decision to uphold or reverse the insurer's decision — and that notice goes to the claimant, to the insurer, and to the Commissioner. The regulator sees the outcome as a matter of course, not on request.

Exhaust everything first

Wyoming is explicit that all levels of internal appeal or grievance with the carrier must be exhausted before external review is available. Where a plan offers more than one internal level, stopping at the first is what makes a request ineligible — and the 120 days run from the final denial, so working through the levels does not cost the window.

The reviewer is licensed, and it is free

The external review is performed by an independent review organization licensed with the Wyoming Department of Insurance and separate from the insurer, and it is free of charge for the covered person. Cost is therefore not a reason to skip escalation on a medical-necessity denial in this state.

How the sequence runs

1. 1

   Close every internal level

   All levels of internal appeal or grievance with the carrier must be exhausted before external review becomes available.

2. 2

   Date the final denial

   The 120 days run from the date of the carrier's final denial, so that letter is what starts the clock.

3. 3

   Send the written request to the carrier

   The covered person or their assigned representative submits the request to the insurer — not to the Department.

4. 4

   Confirm the denial reason is medical necessity

   External review reaches medical-necessity denials. Other grounds do not qualify for this route.

5. 5

   Expect the decision within 45 days

   The assigned review organization notifies the claimant, the insurer and the Commissioner in writing, either upholding or reversing.

Federal enforcement sits closer here

Wyoming is one of the states in which CMS exercises direct enforcement of federal insurance requirements, alongside Alabama, Missouri, Oklahoma, Tennessee and Texas. The federal obligation arises under sections 2723 and 2799B-4 of the Public Health Service Act, which require CMS to enforce any provision a state does not substantially enforce, with federal market conduct examinations available under 45 CFR 150.313. That matters when the problem is a federal protection rather than a state one.

For Wyoming practices

Two checks before drafting. Confirm the denial reason is medical necessity, because the state route does not reach other grounds. Then confirm every internal level is closed, since a partly exhausted appeal is ineligible no matter how strong the clinical case. With 120 days from the final denial and no fee, the constraint here is eligibility rather than time or cost.

Sufficient knowledge, current license, no prior involvement

Wyoming's Ensuring Transparency in Prior Authorization Act, at Wyo. Stat. ch. 26-55, requires every adverse determination to be made by a physician or appropriately licensed provider who has sufficient medical knowledge in the applicable area or specialty, knows the coverage criteria being applied, holds a current unrestricted license, and carries no disqualifying conflict — including having had no involvement in the initial adverse determination.

Wyoming also defines the standard the reviewer is applying. Under Wyo. Stat. 26-40-102 a medically necessary service is one that is medically appropriate for the symptoms, diagnosis or treatment, provides for the diagnosis and the direct care and treatment of the condition, accords with professional evidence-based medicine and recognized standards of good medical practice, and is not primarily for anyone's convenience.