What is external review?
External reviewmeans an independent medical reviewer—not your insurance company—looks at a denial after you have gone through the plan's internal appeal process (with some urgent exceptions). Under Idaho's Health Carrier External Review Act (Idaho Code Title 41, Chapter 59), the Idaho Department of Insurance (DOI) assigns your case to an approved independent review organization (IRO). For eligible cases, the IRO decision is binding on the health carrier—the insurer must generally follow it (I.C. § 41-5910).
This is not a lawsuit and not a government benefit program. It is a structured appeal path for certain medical coverage disputes on regulated Idaho health plans.
Start with Idaho internal appeals & grievances. Background: Appeals roadmap.
When you can use it
External review usually applies when the plan denied care because:
- The treatment is not medically necessary or appropriate;
- The service is experimental or investigational; or
- Similar medical-judgment reasons listed in your final denial.
It generally does notapply when the only issue is whether you were eligible for coverage, whether the benefit exists in the contract, or how much the plan pays for an already-covered service—DOI's materials describe those as coverage issues, not external review cases (DOI — external review questions).
You can usually request external review when:
- You completed the carrier's internal grievance and received a final adverse benefit determination with a notice of external review rights (I.C. § 41-5905), or
- You are treated as having exhausted internal appeal because the carrier missed deadlines (I.C. § 41-5907), or
- You qualify for urgent / expedited external review (see below).
File within 4 months (120 days) of the date on the final denial letter (DOI — external review; I.C. § 41-5908(1)).
How to request it (step by step)
- Finish internal appeal unless an exception in § 41-5907 applies.
- Read the final denial.It should include a "Notice of Your Right to an Independent External Review" and forms. If forms are missing, download them from DOI — external review.
- Complete the External Review Request Form and the HIPAA medical release (required before DOI can proceed—the process is paused until DOI receives a signed release per § 41-5905).
- Gather supporting documents: final denial, insurance card copy, policy or certificate of coverage, clinical records, and treating provider letter.
- Mail or deliver to DOI (standard review):
Idaho Department of Insurance, Attn: External Review, P.O. Box 83720, Boise, ID 83720-0043 (street address: 700 W. State Street, 3rd Floor, Boise). - DOI reviews eligibility and assigns an IRO. The carrier—not the patient—generally pays the cost of standard external review.
- Receive binding written decision from the IRO through DOI.
Questions: 800-721-3272 or 208-334-4250 (coveragerights.org — Idaho).
How long it takes
- Standard external review: IRO decision within 42 days after DOI receives the request (I.C. § 41-5908(20); DOI — external review)
- Expedited external review: generally within 72 hours after the IRO receives the expedited request from DOI (I.C. § 41-5909)
When it does not apply
- Self-funded ERISA employer plans (unless the plan administrator voluntarily opts into Idaho external review—see I.C. § 41-5904(2))
- Medicare and Medicare Advantage — CMS appeal paths
- Idaho Medicaid — MCO grievance, then IDHW fair hearing (different forms and deadlines)
- Dental-only, vision-only, and some limited-benefit plans excluded by Chapter 59
Urgent cases
If standard timelines would seriously jeopardize life, health, or ability to regain maximum function, you may file expedited internal review and expedited external review at the same time (I.C. § 41-5907(2)(c)). Contact DOI for expedited submission instructions; you may need a treating provider certification form in the expedited packet.
For urgent PA denials, see Idaho prior authorization law and expedited appeals.