Dealing With Insurance Denial? Christy Carlson Romano’s PET Scan Is a Wake-Up Call for High-Deductible Plan Holders
When actress Christy Carlson Romano, best known for playing Ren Stevens on the Disney Channel series Even Stevens and for voicing the title character in the animated series Kim Possible, told her Instagram followers in February 2026 that her cancer screening came back “not negative” and her insurer wouldn’t cover the PET scan her doctor ordered next, she put a recognizable face on something high-deductible plan holders navigate quietly all the time.
Romano struggled to get her insurance to cover it, and the data behind her situation is striking: a 2026 analysis from BillKarma, which reviewed claims across more than 4,800 hospitals, found 34% of PET scan prior authorization requests are initially denied by commercial insurers, one of the highest denial rates of any imaging test on the market.
If you’re tracking your own screenings, managing your deductible and shopping your options, here’s where the system actually gives you leverage.
The Hospital vs. Freestanding Imaging Center Price Gap
The same PET scan can cost significantly different amounts depending on where it’s performed. BillKarma’s 2026 pricing data shows hospital outpatient departments average $3,000 to $6,000, while freestanding imaging centers often run $1,500 to $2,800 for the identical scan. On a high-deductible plan, that difference comes directly out of your pocket before coverage kicks in.
Before your scan is scheduled, it’s worth asking your ordering physician whether a freestanding in-network center would accept the same prior authorization. Many will and the savings can be significant.
Why CPT Code Mismatches Cause So Many Denials
Common denial reasons include no prior authorization on file, the insurer deciding the scan doesn’t meet its medical necessity criteria, an out-of-network facility and billing code mismatches between what was authorized and what was submitted. Even a single-digit difference between the CPT code on the prior authorization and the code the facility billed can trigger an automatic denial.
This one is often fixable without a formal appeal. Ask your doctor’s billing office to confirm the codes match exactly. A correction and resubmission is faster than working through the full appeals process, and it doesn’t require you to build a case.
What the 2026 Rule Changes Mean for You
A federal CMS rule (CMS-0057-F) took effect January 1, 2026, requiring insurers to respond to standard prior authorization requests within 7 calendar days and urgent requests within 72 hours, down from 14 days previously, per HealthBillCentral’s 2026 prior authorization guide.
Starting March 31, 2026, Medicare Advantage, Medicaid and ACA marketplace insurers are also required to publicly post their prior authorization approval rates, denial rates and appeal outcomes. That’s a new comparison-shopping data point worth checking during open enrollment.
How to Appeal a Denial and Actually Win
The appeal math favors patients who push back. Muni Health’s 2026 guide reports more than 50% of denials are overturned at the peer-to-peer review stage, where your ordering physician speaks directly with the insurer’s medical director. And per KFF’s March 2026 analysis, nearly half of all external review decisions overturn the initial denial.
Per HealthCare.gov, you have 180 days from a denial notice to file an internal appeal, and internal appeals must be decided within 30 days for services not yet received. Here’s the sequence to follow:
- Read the denial letter for the specific reason code: CO-197 means lack of prior authorization, CO-50 means not medically necessary
- Confirm the CPT code on the bill matches the authorization exactly
- Request a peer-to-peer review through your physician’s office
- File a formal internal appeal with your denial letter, physician notes, prior test results and a letter of medical necessity
- Escalate to an independent external review if the internal appeal fails
- Contact your state Department of Insurance if deadlines are missed or the process stalls
Romano’s situation is the visible version of a denial thousands of patients receive each week. The difference between giving up and getting covered is usually knowing which step to take next.
For situation-specific guidance, consult your plan documents, your physician or your state insurance commissioner.
This article was created by content specialists using various tools, including AI.
