Appealing a Tricare CO-119 Denial
A Tricare CO-119 denial (benefit maximum reached) is one of the most common claim rejections behavioral health therapists face. This guide explains exactly what caused the denial and the most effective appeal strategy for behavioral health practices.
What this denial means
The payer is saying the patient has hit the maximum number of visits, days, or dollar amount allowed for this benefit under their plan. For mental health services, benefit maximums are frequently the most direct form of MHPAEA parity violation.
Your appeal strategy
Tricare is not subject to the federal MHPAEA mental health parity requirement, so do not raise a parity argument on this claim. Support the appeal with the treating clinician's clinical documentation and base your argument on Tricare's own coverage criteria and appeal process (see "What Tricare requires" below).
What Tricare requires
P.O. Box 7933
Madison, WI 53707
60 calendar days (Level-1 appeal)
90 days from Level-1 denial
Tricare is a federal program (10 U.S.C. § 1071 et seq.); state insurance law does not apply. Tricare administers its own mental-health and SUD benefit rules under 32 CFR Part 199 and its own appeal process — do not rely on the commercial MHPAEA framework (29 CFR § 2590.712). Verify the current benefit rule and appeal deadline with the regional contractor (Humana Military East / TriWest West) before filing.
Generate your Tricare CO-119 appeal letter
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Generate my appeal letter →Frequently asked questions
How long does Tricare have to respond to a CO-119 appeal?
Under federal regulations, Tricare must respond to a Level-1 internal appeal within 60 calendar days. State insurance law, including your state's prompt-payment statute, does not apply to this federal program — confirm the current response-window rules directly with the program administrator before filing. If you receive an adverse determination, you typically have 90 calendar days from the date of the Level-1 denial to request external review. Send the appeal via certified mail or through the payer's portal and keep documentation of the submission date.
Does MHPAEA apply to CO-119 denials?
No. The federal Mental Health Parity and Addiction Equity Act (MHPAEA) does not apply to Tricare. Tricare is governed by separate program rules rather than the federal MHPAEA standard (29 CFR § 2590.712). Base your appeal on the program's own coverage rules and appeal process — do not demand a 29 CFR § 2590.712 NQTL comparative analysis from this program. Tricare is a federal program (10 U.S.C. § 1071 et seq.); state insurance law does not apply. Tricare administers its own mental-health and SUD benefit rules under 32 CFR Part 199 and its own appeal process — do not rely on the commercial MHPAEA framework (29 CFR § 2590.712). Verify the current benefit rule and appeal deadline with the regional contractor (Humana Military East / TriWest West) before filing.
Can I appeal a CO-119 denial more than once?
Yes. Most payers, including Tricare, allow at least two levels of internal appeal (Level-1 and Level-2 or "expedited" review). Keep copies of every appeal, submission confirmation, and payer response. After exhausting the regional contractor's internal reconsideration, TRICARE appeals escalate to the Defense Health Agency under 32 CFR 199.10. Your state insurance commissioner has no authority over TRICARE — it is a federal program administered by the Department of Defense.
What documentation do I need to appeal a CO-119 denial from Tricare?
At minimum: the original Explanation of Benefits (EOB) or Remittance Advice (RA) showing the CO-119 denial, the original claim details (CPT code, date of service, NPI, charge amount), and any clinical documentation supporting medical necessity. Submit everything in one packet with a cover letter citing the specific denial code, the date of service, and the claim number.