They say you weren't covered that day. You were.
Your insurer calls this “Member not covered”. This page is about what that actually means and what you can do about it.
Almost always a data error — an enrolment file that didn't transmit, a premium posted late, a start date recorded wrong. It is a fact problem, not an opinion problem.
Is this your denial? Look for these words on your letter
“not eligible on date of service”“coverage terminated”“no active coverage”“member not found”
Not sure? Work out which denial you have →
The first thing to do. Get proof you were enrolled on the day you were treated, and chase your employer's HR or the Marketplace at the same time as the insurer. They often fix it faster.
You are not a rare case
2,540,844
claims denied for this reason in the federal data — 4.1% of all categorised denials. This happens constantly, and it is beaten constantly.
Reason to keep going. If your coverage was cancelled backwards, that is a rescission — which is tightly restricted, and always qualifies for independent external review.
What to do about this denial
- Get the exact wording. Ask for the specific plan provision and clinical criteria relied on. The plan must supply it free of charge on request.
- Answer the reason given, not the diagnosis. An appeal that argues the wrong point fails even when the claim is good.
- Get your treating clinician to write the counter. Their letter carries far more weight than yours alone.
- Internal appeal first, then external review. Internal generally within 180 days of the denial; external generally within 4 months of the final internal denial.
Important for this denial type: external review covers denials involving medical judgement, experimental/investigational determinations, and rescission of coverage. A purely administrative or eligibility denial may not qualify for external review. That is not bad news — administrative denials are usually the easiest to reverse at the internal stage, because you are correcting a record rather than winning an argument. If the plan's reasoning turns out to involve medical judgement, external review is back on the table.
Insurers recording the most "member not covered" denials
| Insurer | State | Claims |
|---|---|---|
| Blue Cross and Blue Shield of Alabama | Alabama | 309,443 |
| Blue Cross and Blue Shield of NC | North Carolina | 302,754 |
| Blue Cross and Blue Shield of South Carolina | South Carolina | 232,338 |
| Ambetter of Peach State Inc. | Georgia | 130,775 |
| Celtic Insurance Company | Florida | 79,003 |
| Blue Care Network of Michigan | Michigan | 70,947 |
| BlueCross BlueShield of Tennessee | Tennessee | 68,205 |
| Ambetter of Magnolia Inc. | Mississippi | 66,842 |
| AvMed, Inc. | Florida | 66,716 |
| Celtic Insurance Company | Missouri | 62,416 |
| Molina Healthcare of Ohio, Inc. | Ohio | 61,882 |
| Blue Cross Blue Shield of Illinois | Illinois | 60,399 |
Everything you need for a "member not covered" denial: your two deadlines, the argument that fits your denial reason, an evidence checklist, and the external review request. Opens on screen the moment you pay.
This page presents federal statistics and a general description of appeal rights created by federal law. It is not legal, medical, or insurance advice, and no outcome is guaranteed. Your denial letter and plan documents govern your specific case. Free help is available from your state's Consumer Assistance Program and from the federal Marketplace at HealthCare.gov.