Strong State Parity LawOR

Aetna Behavioral Health Appeals in Oregon

Appealing an Aetna behavioral health denial in Oregon means tracking two separate clocks: Aetna's own 30-day Level-1 appeal window, and Oregon's 30-day prompt-payment statute (ORS 743.823) for clean-claim payment. This guide covers both, plus Aetna's filing address and Oregon's parity protections.

Where to file your Aetna appeal

Appeal Address
Aetna Appeals Department
P.O. Box 14463
Lexington, KY 40512
Level-1 Response Window

30 calendar days

External Review Deadline

60 days from Level-1 denial

Provider Portal
File online
Fax

1-860-754-2985

Oregon's prompt-payment window

In Oregon, state-regulated (fully-insured) plans — including many Aetna plans — generally must pay or formally respond to a clean claim within 30 calendar days under ORS 743.823. This deadline does not bind self-funded ERISA plans. This is a claim-payment deadline, not the appeal-decision deadline. If Aetna missed this window on your claim, cite it as a separate payment violation alongside your Aetna appeal — not as the deadline for the appeal decision itself.

30 days EFT / 45 days paper for clean claims. Oregon SB 819 (2021) strengthened MHPAEA enforcement and requires parity analysis disclosure on request.

MHPAEA parity for Aetna in Oregon

Oregon adds state-level parity protection

Oregon SB 819 (2021) strengthened state MHPAEA enforcement, requiring payers to produce NQTL comparative analyses on request and authorizing the Oregon Insurance Division to conduct parity compliance examinations. Oregon's standards track the 2024 MHPAEA Final Rule requirements even as federal enforcement is paused. The Insurance Division enforces independently of federal action.

Statute: ORS 743A.168; ORS 743.823 (OR SB 819, 2021)

Aetna's parity posture: Aetna publishes MHPAEA comparative analyses on request; behavioral health benefits are administered through Aetna Behavioral Health. Document parity violation in detail — Aetna's internal process requires a specific MHPAEA flag in the appeal routing system.

When appealing an Aetna denial in Oregon on a state-regulated, fully-insured plan, cite both federal MHPAEA (29 CFR § 2590.712) and ORS 743A.168; ORS 743.823 (OR SB 819, 2021) together — the state statute remains in force regardless of the 2025 federal non-enforcement of the 2024 MHPAEA Final Rule. Self-funded ERISA plans are preempted from state insurance law, so rely on federal MHPAEA alone there.

Common Aetna denial codes

The most common Aetna denial codes for behavioral health are: CO-4, CO-97, CO-50, CO-45. Each has a dedicated guide with the denial explanation and appeal strategy.

Oregon's insurance commissioner

If your internal Aetna appeal is denied, Oregon's Department of Insurance can help with a complaint or external review for fully-insured plans. Look up the official contact via the NAIC consumer locator.

Note: self-funded ERISA plans are generally exempt from state insurance regulation. If your patient's Aetna plan is employer-sponsored and self-funded, your remedies run through the U.S. Department of Labor (EBSA) rather than Oregon's commissioner.

Generate your Aetna appeal letter

AppealWin generates a complete, editable appeal letter with the correct regulatory citations for Oregon and Aetna in minutes. Therapists get 5 free letters every month; a one-time $19 patient letter is also available.

Generate my appeal letter →

Frequently asked questions

How long does Aetna have to respond to an appeal in Oregon?

Aetna generally has 30 calendar days to respond to a Level-1 appeal. If denied, you have 60 days to request external review. Separately, Oregon's prompt-payment statute gives payers 30 days to respond to a clean claim (ORS 743.823) — a different deadline governing claim payment, not the appeal decision.

Does MHPAEA apply to Aetna in Oregon?

Generally, yes — for Aetna's group health plans. Federal MHPAEA applies to Aetna's group health plans in Oregon. ORS 743A.168; ORS 743.823 (OR SB 819, 2021) additionally applies for state-regulated, fully-insured plans — self-funded ERISA plans are preempted from state insurance law and rely on federal MHPAEA alone; where it applies, Oregon's state law remains in force regardless of the 2025 federal non-enforcement announcement.

Where do I mail or fax a Aetna appeal?

Mail to Aetna Appeals Department, P.O. Box 14463, Lexington, KY 40512. You can also fax to 1-860-754-2985. This address is the same nationally, including for Oregon providers.