Why does my insurer want me to get infusions at home?

Home and office infusions usually cost the plan much less than hospital outpatient infusion. Site-of-care policies try to move stable patients to those settings.

Can my doctor request a hospital infusion exception?

Yes. Most policies allow exceptions for documented clinical reasons such as prior severe reactions or conditions that need hospital monitoring.

Will I pay more if I stay at the hospital?

If the plan denies the hospital setting and you go anyway, you could be billed for the full cost. Confirm authorization before your appointment.

Is a site-of-care denial a medical necessity denial?

It's usually treated as one, which means you can generally use internal appeal and external review rights.

Infusion Site-of-Care Denial: How to Appeal

By AppealFlow editorial•5 min read•Published October 2026

A site-of-care denial means your plan approved the infusion drug but wants it given somewhere cheaper, such as a home infusion service, doctor's office or freestanding center, instead of a hospital outpatient department. Plans usually allow exceptions for safety reasons, such as prior severe reactions, the first few doses, unstable conditions or poor vein access. An appeal works when your doctor documents a specific clinical reason the cheaper setting is unsafe for you.

What Is a Site-of-Care Policy?

Key Takeaway: These policies target cost, not the drug itself.

Hospital outpatient infusion can cost far more than the same drug in other settings, so many insurers have site-of-care policies for drugs such as infliximab, ocrelizumab, IVIG and others. When the policy applies, the plan may approve the drug only at a lower-cost site, or ask for a new authorization for the hospital setting after an initial period.

What Exceptions Do Plans Allow?

Key Takeaway: Common clinical reasons in site-of-care policies.

A previous moderate or severe infusion reaction, or anaphylaxis
The first dose or first few doses of a new drug, or restarting after a long gap
Unstable heart or lung disease, or other conditions needing hospital-level monitoring
Difficult venous access requiring hospital resources
Physical or cognitive limitations that make home infusion unsafe, or no safe home environment
No alternative site within a reasonable distance

How Do I Appeal a Site-of-Care Denial?

Key Takeaway: Get specific and get it in before your next dose.

Ask for the plan's site-of-care policy and the list of approved alternative sites near you.
Have your prescriber document the exception that applies, with dates (for example, the reaction you had and what treatment was needed).
If timing matters, ask for an expedited review; delaying an infusion can cause a flare.
Ask whether the plan will authorize a transition period at the hospital while you switch sites.
File the internal appeal by the deadline and request external review if it's upheld.
The prescription denial appeal generator can help you structure the letter.

Should I Just Switch Sites?

Key Takeaway: Sometimes it's the better choice.

If you have no safety concern, a home or office infusion may cost you less in coinsurance and be more convenient. Ask the new site about nursing, reaction protocols and what happens if a dose is missed. Keep in mind that a different site may use a different specialty pharmacy, so confirm the drug authorization carries over.

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Disclaimer: This article is for educational purposes only and does not constitute medical, legal, or financial advice. Plan terms, state laws, and federal rules vary and change. Check your plan documents and denial notice, and consider a licensed professional or your state consumer assistance program. See our full disclaimer.