How to appeal a behavioral-health denial: build the packet

What goes into a behavioral-health appeal packet?

Everything a second reviewer needs to reverse the decision without calling you: what is being appealed, why the plan said no, the facts that answer each reason, the clinician's reasoning, and the supporting records. Order matters. Reviewers read the first pages most carefully, so put the request and the crosswalk first and the records last.

1. 01Cover letter: member, plan, claim or authorization numbers, level of care, dates and units disputed, and the decision you want.
2. 02The denial notice and any earlier authorization letters, so the reviewer sees what was approved and what was not.
3. 03A one- or two-page crosswalk: each reason in the notice, the criterion it refers to, and the record pages that answer it.
4. 04The treating clinician's statement, signed and dated.
5. 05Record excerpts in date order, each page labelled to match the crosswalk.
6. 06Any criteria request, claim-file request or parity request you sent, with its date, and the plan's reply.

Who is the appellant, and who should sign?

For most plan appeals the patient is the claimant and the provider acts as authorized representative, which may require a signed form. Network contracts often add a separate provider appeal or reconsideration. Use the route the notice names, and make sure the signer matches it, or the appeal can be rejected as filed by the wrong party.

Under the ERISA claims rule, plans may set reasonable procedures for confirming that someone is authorized to act for the claimant, but for urgent care a health care professional with knowledge of the patient's condition may act as the authorized representative. In Medicaid managed care, a provider can file an appeal for the enrollee with the enrollee's written consent where State law permits, but a provider cannot ask for benefits to continue during the appeal.

How should the clinician's statement be written?

In the clinician's own words, tied to the dates and reasons in dispute. It should state the diagnosis and current presentation, the specific risks or impairments that require this level of care, what happened at lower levels, and the plan for stepping down. It should not repeat the chart; it should explain it.

• Name the reason in the notice and answer it directly, one paragraph per reason.
• Refer to dated record facts, such as a safety assessment on a given day, rather than general descriptions.
• Explain why a lower level of care would not be safe or effective now.
• State the expected length of the requested care and the conditions for step-down.
• Sign, date and list credentials. A letter written for the clinician must be reviewed and adopted by them.

How do you protect sensitive records in the packet?

Send only what answers the stated reasons. HIPAA's minimum necessary standard applies to disclosures for payment, including appeals. Psychotherapy notes kept separately from the medical record generally need the patient's specific authorization and are rarely needed. Substance use treatment records from federally assisted programs carry extra protections under 42 CFR Part 2.

HHS updated the Part 2 rule in 2024 to align more closely with HIPAA, including a single patient consent for treatment, payment and health care operations; the compliance date was February 16, 2026. Check your consent forms against the current rule before including SUD records in an appeal.

Should the packet raise mental health parity?

Add it when there is a concrete reason, not as boilerplate. If the plan applied criteria, review frequency or documentation demands to behavioral-health care that it does not apply to comparable medical care, say so and request the plan's comparative analysis. Keep the clinical argument as the main argument either way.

Employer plans must disclose mental health and substance use medical-necessity criteria on request, and the Department of Labor's September 2026 enforcement bulletin lists medical-necessity standards in prior, concurrent and retrospective review as an enforcement priority. The parity warning-sign checker helps decide whether a parity paragraph belongs in the packet.

How do you submit and track the appeal?

Use the channel the notice names, keep proof of what was sent and when, and calendar both the plan's decision deadline and your next-level deadline. A packet that cannot be shown to have arrived on time is the most avoidable loss in appeals work.

1. 01Confirm the address, fax number or portal from the notice or the payer's provider manual, not from an old template.
2. 02Number the pages and keep an exact copy of the packet as sent.
3. 03Save the fax confirmation, portal receipt or tracking record with the case.
4. 04Calendar the plan's decision due date: 30 or 60 days for most standard appeals, 72 hours for expedited ones.
5. 05Calendar the next-level deadline, such as external review or a State fair hearing, from the decision date.