Insurance & cost

Insurance utilization review: Why your days are being cut

Published December 5, 2024 · 7 min read · Updated April 2026
Reviewed for accuracy by licensed clinical professionals.

Utilization review (UR) is the process where your insurance company periodically reviews whether continued treatment at the current level is medically necessary. It often results in authorization for fewer days than clinically recommended.

How it works

The treatment facility submits clinical updates to the insurance company every 3-7 days. A UR reviewer evaluates whether continued treatment meets medical necessity criteria. Authorization is granted for additional days or denied, requesting step-down to a lower level.

Why days get cut

Insurance uses standardized criteria that may not match individual clinical needs. Reviewers may not have addiction-specific training. Financial incentives to minimize authorized days. Criteria may not account for fentanyl-era complexity.

Your rights

Right to appeal any reduction in authorized days. Right to peer-to-peer review (your doctor speaks with the insurance reviewer). Right to continue treatment during the appeal process (for in-network facilities). Right to external review if internal appeals fail.

What the facility should do

Your treatment team should fight for appropriate authorization. If they do not advocate for continued stay, that is a red flag about the facility's commitment to clinical care over business considerations.

Authoritative sources

This article references guidelines from: SAMHSA · NIDA · ASAM

Frequently asked questions

What is utilization review?
Insurance company's periodic review of whether continued treatment is medically necessary, determining how many days are authorized.
Why is insurance cutting my treatment short?
Insurance uses standardized criteria that may not match your clinical needs. Appeal decisions you disagree with.
Can I stay in treatment if insurance stops paying?
You can appeal. During appeal, in-network facilities typically must continue care. Self-pay is an option if appeals fail.

Disclaimer: Informational only. Not medical advice. SAMHSA: 1-800-662-4357.