When the coverage is a job-based plan at a private employer, the appeal you file is governed by one federal rule: the Department of Labor's claims-procedure regulation, 29 CFR 2560.503-1, issued under section 503 of ERISA.1 That makes it the most consequential regulation most billing staff have never read. In KFF's 2025 employer survey, 67 percent of covered workers were in plans the employer self-funds3 — plans where state insurance law, state external-review statutes, and the state insurance commissioner generally cannot reach. For those claims, this regulation is not one layer of protection among several. It is the floor, and most of the ceiling.
The statute behind it is one sentence long and gives the piece its name:
“…afford a reasonable opportunity to any participant whose claim for benefits has been denied for a full and fair review by the appropriate named fiduciary of the decision denying the claim.”4
ERISA § 503, 29 U.S.C. § 1133(2)
The regulation defines what “full and fair” must mean in practice. Below, each operative clause is quoted verbatim from the current eCFR text and translated. Everything here belongs to the claimant — the patient — but a provider who is designated as the patient's authorized representative exercises every one of these rights directly.
How a provider stands in the patient's shoes
The authorized representative
29 CFR 2560.503-1(b)(4)
The regulation says
“The claims procedures do not preclude an authorized representative of a claimant from acting on behalf of such claimant in pursuing a benefit claim or appeal of an adverse benefit determination.”1
In plain English
A plan cannot refuse to deal with you because you are the practice rather than the patient. It may require a reasonable designation procedure — usually a signed form from the patient — so build that signature into intake. DOL's guidance adds that once a representative is clearly designated, the plan should direct all notices and claim information to the representative.25
One exception needs no form at all: on an urgent-care claim, the same clause requires that a health care professional with knowledge of the patient's condition “shall be permitted” to act as the representative.1
The rights, clause by clause
At least 180 days to appeal
29 CFR 2560.503-1(h)(3)(i)
The regulation says
“Provide claimants at least 180 days following receipt of a notification of an adverse benefit determination within which to appeal the determination”1
In plain English
For group health claims, the general 60-day ERISA minimum does not apply — the floor is 180 days from receipt of the denial. A plan document or EOB that gives you less is out of compliance on its face. The window runs from the notification, not the date of service.
You may submit new evidence
29 CFR 2560.503-1(h)(2)(ii)
The regulation says
“Provide claimants the opportunity to submit written comments, documents, records, and other information relating to the claim for benefits”1
In plain English
The appeal is not limited to what was in the original claim file. Chart notes, imaging, a letter of medical necessity, published literature — the plan must accept all of it. This is why an appeal letter can win where the bare claim lost: the record on review is allowed to be bigger.
The claim file is yours, free
29 CFR 2560.503-1(h)(2)(iii)
The regulation says
“Provide that a claimant shall be provided, upon request and free of charge, reasonable access to, and copies of, all documents, records, and other information relevant to the claimant's claim for benefits.”1
In plain English
“Relevant” is defined broadly at paragraph (m)(8): anything relied on in the decision, anything submitted, considered, or generated in making it — whether or not it was relied on — and the plan's policy or guidance on the denied treatment for this diagnosis.1 In practice: you can demand the reviewer's notes and the criteria that killed the claim before you write a word of the appeal.
Everything you submit must be considered
29 CFR 2560.503-1(h)(2)(iv)
The regulation says
“Provide for a review that takes into account all comments, documents, records, and other information submitted by the claimant relating to the claim, without regard to whether such information was submitted or considered in the initial benefit determination.”1
In plain English
The reviewer cannot skim the original file and stop. Material you add on appeal must be taken into account even though the first decision never saw it. A denial upheld without engaging the new evidence is a procedural failure — which matters under §7 below.
Fresh eyes, no deference
29 CFR 2560.503-1(h)(3)(ii)
The regulation says
“Provide for a review that does not afford deference to the initial adverse benefit determination and that is conducted by an appropriate named fiduciary of the plan who is neither the individual who made the adverse benefit determination that is the subject of the appeal, nor the subordinate of such individual”1
In plain English
The appeal is a new decision, not a rubber stamp of the old one. It must be decided by a named fiduciary — someone who owes legal duties to the plan — and that person cannot be the original decision-maker or anyone who reports to them.
A specialist must review medical judgments
29 CFR 2560.503-1(h)(3)(iii)–(v)
The regulation says
“…in deciding an appeal of any adverse benefit determination that is based in whole or in part on a medical judgment, including determinations with regard to whether a particular treatment, drug, or other item is experimental, investigational, or not medically necessary or appropriate, the appropriate named fiduciary shall consult with a health care professional who has appropriate training and experience in the field of medicine involved in the medical judgment”1
In plain English
A medical-necessity or experimental-treatment denial cannot be resolved on appeal without consulting a clinician trained in the relevant field — and under (h)(3)(v), not the same consultant used the first time, nor that person's subordinate.1 The plan must also identify, on request, the experts whose advice it obtained, whether or not it followed that advice.
The internal criteria must be disclosed
29 CFR 2560.503-1(g)(1)(v)(A)
The regulation says
“If an internal rule, guideline, protocol, or other similar criterion was relied upon in making the adverse determination … a copy of such rule, guideline, protocol, or other criterion will be provided free of charge to the claimant upon request”1
In plain English
If the denial rests on an internal guideline, the denial notice must either quote it or offer it free on request; if it rests on medical necessity or an experimental-treatment limit, the plan owes an explanation of the scientific or clinical judgment as applied to this patient.1 Ask for the criterion, then write the appeal to its own terms.
The clocks, verified against the text
The regulation runs on fixed clocks, and they are asymmetric by design: the plan's deadlines to decide are measured in days or hours, while your window to appeal is measured in months. Two structural rules sit underneath the table. A group health plan may not require more than two levels of appeal before you can sue under ERISA § 502(a)1, and the plan's review clock starts when the appeal is filed — “without regard to whether all the information necessary” has arrived.1 Deadlines across other plan types work differently; see appeal deadlines by plan type.
| Clock | Urgent care | Pre-service | Post-service |
|---|---|---|---|
| Plan decides the initial claim | 72 hours | 15 days + one 15-day extension | 30 days + one 15-day extension |
| Your window to appeal | 180 days minimum | 180 days minimum | 180 days minimum |
| Plan decides the appeal — one mandatory level | 72 hours | 30 days | 60 days |
| Plan decides the appeal — two mandatory levels, per level | 72 hours | 15 days | 30 days |
Verbatim deadlines from 29 CFR 2560.503-1(f)(2), (h)(3)(i), and (i)(2) (source 1). Unlike the initial-claim clocks, the appeal-decision clocks for group health plans carry no special-circumstances extension. Urgent appeals may be requested orally under the expedited process at (h)(3)(vi).
If the plan breaks its own rules, you are done exhausting
29 CFR 2560.503-1(l)(1)
The regulation says
“…in the case of the failure of a plan to establish or follow claims procedures consistent with the requirements of this section, a claimant shall be deemed to have exhausted the administrative remedies available under the plan and shall be entitled to pursue any available remedies under section 502(a) of the Act…”1
In plain English
This is the enforcement clause for everything above. A plan that blows its decision deadline, ignores submitted evidence, or withholds the claim file has not just been rude — it has forfeited the exhaustion defense, and the claimant may go straight to federal court. Documenting the plan's procedural failures in the appeal letter is therefore not decoration; it is preserved leverage.
Scope, stated precisely
This regulation governs employee benefit plans under ERISA — job-based coverage at private employers, whether the employer buys insurance or pays claims from its own funds. The distinction matters for what else applies. When the plan is self-funded, ERISA preemption means state insurance law does not reach it: no state external-review statute, no state prompt-pay law, no complaint to the state insurance department. The remedies are this regulation, the ACA's federal external-review process for non-grandfathered plans, and ERISA § 502(a) itself. When the employer plan is fully insured, the insurance policy underneath is also subject to state insurance regulation, so both frameworks apply. Government and church plans sit outside ERISA entirely, and individual marketplace policies follow ACA and state rules instead. Identifying which kind of plan issued the denial is step one of any appeal — see how ERISA plans work and the step-by-step ERISA appeals guide.
Sources
- 1eCFR — 29 CFR § 2560.503-1, Claims procedure (current text) · retrieved July 2026
- 2U.S. Department of Labor, EBSA — Benefit Claims Procedure Regulation FAQs · current
- 3KFF — 2025 Employer Health Benefits Survey (67% of covered workers in self-funded plans) · 2025
- 429 U.S.C. § 1133 — ERISA § 503, Claims procedure (statutory text) · current
- 5U.S. Department of Labor, EBSA — Information Letter 02-27-2019 (authorized representatives in benefit claims) · Feb 2019