Humana Behavioral Health Appeals in Colorado
Appealing a Humana behavioral health denial in Colorado means tracking two separate clocks: Humana's own 30-day Level-1 appeal window, and Colorado's 30-day prompt-payment statute (C.R.S. § 10-16-106.5) for clean-claim payment. This guide covers both, plus Humana's filing address and Colorado's parity protections.
Where to file your Humana appeal
P.O. Box 14601
Lexington, KY 40512
Colorado's prompt-payment window
In Colorado, state-regulated (fully-insured) plans — including many Humana plans — generally must pay or formally respond to a clean claim within 30 calendar days under C.R.S. § 10-16-106.5. This deadline does not bind self-funded ERISA plans. This is a claim-payment deadline, not the appeal-decision deadline. If Humana missed this window on your claim, cite it as a separate payment violation alongside your Humana appeal — not as the deadline for the appeal decision itself.
30 days EFT / 45 days paper.
MHPAEA parity for Humana in Colorado
Colorado adds state-level parity protection
Colorado HB19-1269 (2019), the Behavioral Health Care Coverage Modernization Act, amended C.R.S. § 10-16-104(5.5) so that coverage of behavioral, mental health, and substance use disorders under state-regulated health benefit plans must comply with MHPAEA. It also bars carriers from applying nonquantitative treatment limitations to behavioral health benefits that are not applied to medical/surgical benefits in the same classification, and requires carriers to file annual parity compliance reports with the Colorado Division of Insurance (C.R.S. § 10-16-147). It applies to fully insured, state-regulated plans, not self-funded ERISA plans.
Statute: C.R.S. § 10-16-104(5.5) (verify current section); Colorado HB19-1269 (2019) (confirm the current section before citing)
Humana's parity posture: Federal MHPAEA parity does not apply to Humana Medicare Advantage plans — the parity argument on this page applies only to Humana commercial/ERISA plans. Humana administers behavioral health through an internal BH team. Strong Medicare Advantage presence — MA plans follow Medicare appeals rules (42 CFR § 422), which differ from commercial ERISA rules.
When appealing a Humana denial in Colorado on a state-regulated, fully-insured plan, cite both federal MHPAEA (29 CFR § 2590.712) and C.R.S. § 10-16-104(5.5) (verify current section); Colorado HB19-1269 (2019) (confirm the current section before citing) 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 Humana denial codes
Colorado's insurance commissioner
If your internal Humana appeal is denied, Colorado'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 Humana plan is employer-sponsored and self-funded, your remedies run through the U.S. Department of Labor (EBSA) rather than Colorado's commissioner.
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Generate my appeal letter →Frequently asked questions
How long does Humana have to respond to an appeal in Colorado?
Humana generally has 30 calendar days to respond to a Level-1 appeal. Separately, Colorado's prompt-payment statute gives payers 30 days to respond to a clean claim (C.R.S. § 10-16-106.5) — a different deadline governing claim payment, not the appeal decision.
Does MHPAEA apply to Humana in Colorado?
Generally, yes — for Humana's group health plans. Federal MHPAEA applies to Humana's group health plans in Colorado. C.R.S. § 10-16-104(5.5) (verify current section); Colorado HB19-1269 (2019) (confirm the current section before citing) 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, Colorado's state law remains in force regardless of the 2025 federal non-enforcement announcement.
Where do I mail or fax a Humana appeal?
Mail to Humana Medical Appeals, P.O. Box 14601, Lexington, KY 40512. You can also fax to 1-800-832-4651. This address is the same nationally, including for Colorado providers.