When insurance says no

Coverage for addiction treatment is almost never denied because the plan excludes it. It is denied on medical necessity — the insurer's position that the level of care being delivered is more intensive than the patient's condition requires.

That sounds subjective. It largely is not. Most commercial insurers assess medical necessity for substance use treatment against The ASAM Criteria, published by the American Society of Addiction Medicine. If you understand what the criteria ask, you understand what the denial is really saying.

The six dimensions the decision is made on

ASAM assesses a patient across six dimensions, and the required level of care follows from how severe those dimensions are together:

1. Withdrawal potential — is intoxication or withdrawal happening, and how dangerous is it?
2. Biomedical conditions — other physical health problems and complications.
3. Emotional, behavioral, or cognitive conditions — co-occurring mental health conditions, suicidality, cognitive impairment.
4. Readiness to change — engagement with treatment, insight, motivation.
5. Relapse or continued use potential — how likely is continued use without this level of structure, based on history.
6. Recovery environment — what does the person go home to? Housing, family, employment, whether the home contains the substance or the people attached to it.

Why denials actually happen

In practice the most common cause is not that the patient is doing well. It is that the clinical notes do not establish the need in the language the criteria use. Typical patterns:

• The notes read like progress. "Patient is engaged, attending groups, in good spirits" is excellent care and a terrible utilization-review document. It reads as evidence the person no longer needs this level of care.
• Not all six dimensions are documented. If dimensions 5 and 6 are thin, there is nothing in the record explaining why going home now would fail.
• No documented failure at a lower level. Insurers want to see why outpatient or a less intensive setting is not sufficient. If prior attempts exist, they must be in the record.
• Generic or copy-pasted notes. Reviewers see thousands of these and recognize a template instantly.

This is why the appeal is usually winnable. The clinical reality often justifies the stay; the paperwork failed to say so.

The three kinds of review

The appeal sequence

Deadlines are real and they are short. Start on the day you are told.

1. Get the denial in writing, with the criteria

Request the written denial, the specific clinical criteria applied, and the credentials of the reviewer who made the decision. You are entitled to know the basis of an adverse determination. A verbal denial from the facility's billing office is not a denial you can appeal — get the document.

2. Ask for a peer-to-peer review

A peer-to-peer is a direct conversation between the facility's physician and the insurer's medical director. This is not something you do — it is something the facility does, and the single most useful thing a family can do is insist that it happens and confirm that it happened. Ask for the date, who spoke, and the outcome. Peer-to-peers are frequently skipped when a facility's utilization review staff are stretched, and they reverse denials often enough that skipping one is a real loss.

3. File the internal appeal

The plan must offer an internal appeal. It needs a letter that maps the clinical facts onto the six dimensions explicitly, attaches the records that support each one, and states plainly why a lower level of care would fail. If the person is currently in treatment and a delay would jeopardise their health, ask for an expedited appeal — those run on a much shorter clock.

4. Request external review

If the internal appeal fails, you can generally escalate to an independent external review — a reviewer not employed by the insurer. Your written denial should describe how. Your state insurance department can also tell you, and can take a complaint.

Practical things that matter more than they should

• Keep a call log from day one. Date, time, who you spoke to, reference number, what they said. Insurers and facilities both lose things; a log is why you win the disagreement about what was said.
• Get authorizations in writing every time. "Authorized through the 14th" means nothing without a document and a number.
• Ask the facility who does their utilization review before you admit. A program with a dedicated, experienced UR person loses fewer days. This is a fair question and their answer is revealing.
• Ask what happens if coverage stops. Do they discharge, step down, offer a self-pay rate, or write it off? Get the answer before you need it, not at 4pm on a Friday.
• If the facility is out of network, ask whether they will pursue a single case agreement — a one-off negotiated rate. Many will, and many families never think to ask.
• Do not sign an open-ended financial responsibility form without reading what you are agreeing to owe if coverage is denied.

One thing to be clear about

A denial is not a verdict on whether your family member needs help. It is a determination about a document. People with genuine, dangerous, obvious need get denied because a note was written in the wrong register, and people appeal successfully all the time. Treat it as a paperwork fight, because that is what it is — and paperwork fights are winnable by whoever is more organized and more persistent.

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