How to appeal an IVF insurance denial in Washington

Washington currently has no law requiring insurers, the state employee (PEBB/SEBB) plans, or Apple Health (Medicaid) to cover infertility diagnosis, treatment, or IVF. Two consecutive attempts at a broad mandate — HB 1151/SB 5204 (2023-24) and HB 1129/SB 5121 (2025-26, the 'Washington State Building Families Act') — both died before reaching the Governor.

How to appeal a denial

1. Internal appeal — you have 180 days from the denial to file. The plan must decide within 30 days (before service) or 60 days (after service); 72 hours if urgent.
2. External review — available for at least 4 months after the final internal denial, for medical-necessity and "experimental" denials (PGT-A, ICSI, step therapy). An independent reviewer decides within 45 days. Contractual exclusions are not eligible for external review — those go to the regulator as a complaint.
3. Regulator — Washington State Office of the Insurance Commissioner. Washington independent review organization process (RCW 48.43.535; RCW 48.43.537) File a complaint. Copy the regulator on every appeal letter; clinics report it speeds things up.

If your plan is self-funded, skip the state regulator: your appeal runs under ERISA and complaints go to the U.S. Department of Labor's Employee Benefits Security Administration.

Common denial reasons and what to argue

• Step therapy / prior-treatment requirements — check your plan's own Summary Plan Description or clinical policy for its step-therapy criteria and ask the payer for its bypass criteria (age 38+, tubal factor, stage III–IV endometriosis, severe male factor are common).
• Benefit limits — if your employer voluntarily covers fertility care, the denial is governed entirely by the plan document, not state law; ask for the exact clause the denial relied on.
• 'Experimental' (PGT-A, ERA, ICSI without male factor) — eligible for external review; ask the clinic for a medical-necessity letter. Success is limited for PGT-A.
• Medication routing — many denials are the wrong pharmacy or a missing prior auth, not a coverage decision. Ask the specialty pharmacy to re-run with prior auth.
• AI-only review — several states now bar insurers from denying on medical necessity without a physician's individualized review; ask in writing whether AI was the sole basis.

Where people get surprised

• Nothing is required of any Washington plan today — fully insured, self-funded, or individual-market. RCW 48.43.072 requires coverage of contraception and other reproductive health services but expressly excludes infertility treatment from that definition.
• Washington's Reproductive Privacy Act (RCW 9.02.100) and 2023 Shield Law (ch. 7.115 RCW) protect the legal right to access IVF and other reproductive care in Washington and shield providers from out-of-state legal action — but neither one requires any insurer to pay for it. Don't confuse this legal-access protection with an insurance mandate.
• HB 1129 / SB 5121 (2025-26, 'Building Families Act') would have required group health plans (other than small-group), PEBB/SEBB state and school-employee plans, and Apple Health Medicaid to cover standard fertility preservation starting 2026-01-01 and infertility diagnosis/treatment (two oocyte retrievals, unlimited embryo transfers, ASRM guidelines) starting 2027-01-01. HB 1129 passed the House Health Care & Wellness Committee but its companion SB 5121 died in a Senate fiscal committee during the 2026 session; a near-identical predecessor (HB 1151/SB 5204) died in the House in February 2024.
• At least one Apple Health managed-care plan's published benefit grid lists diagnosis and treatment of infertility as a noncovered service.

What may change

• WA HB 1129 / SB 5121 (2025-26, 'Washington State Building Families Act') — Would have required group health plans (excluding small-group), PEBB and SEBB state/school employee plans, and Washington Apple Health (Medicaid) to cover standard fertility preservation services for plans issued or renewed on or after 2026-01-01, and diagnosis/treatment of infertility (two completed oocyte retrievals, unlimited embryo transfers, ASRM guidelines, single-embryo transfer preferred when medically appropriate) for plans issued or renewed on or after 2027-01-01, at parity with other pregnancy-related benefits, with no separate deductible/copay/limitation. Status: HB 1129 passed out of House Health Care & Wellness (substitute bill, 'do pass', Jan 2026) and was referred to House Appropriations; companion SB 5121 died in a Senate fiscal committee during the 2026 session, reportedly over its fiscal note. Neither bill reached the Governor's desk.. Would take effect 2026-01-01.
• WA HB 1151 / SB 5204 (2023-24) — Predecessor bill limited to large-group health plans (including public-employee plans); would have required coverage of diagnosis/treatment of infertility and standard fertility preservation, phased in similarly to the 2025-26 bill (four retrievals in the House committee substitute, later reduced to two in the Appropriations version). Status: Died; last recorded status 'Engrossed - Dead' as of 2024-02-20..

Sources

• Washington State Legislature HB 1129/SB 5121 bill text and history (app.leg.wa.gov, lawfilesext.leg.wa.gov); Washington State Standard, 'More dead bills stack up in WA Legislature' (2026-02-10); HB 1151 House Appropriations committee report (2023-24 biennium); RCW 48.43.072 (Justia/app.leg.wa.gov); WA Attorney General consumer alert on IVF legal protections; ReproductiveFacts.org Washington state page — effective 1900-01-01, verified 2026-09-06
• HHS — internal claims and appeals / external review
• KFF — AI in prior authorization and claims review

This page explains public coverage rules and typical prices as of the dates shown. It is an estimate and an interpretation, not a coverage decision by your plan, and not legal, medical, tax, or insurance advice. Your plan documents control. We never store what you enter here unless you choose to save a plan.