Is a rapid strep test covered by insurance?
Usually yes. A rapid strep test is a diagnostic lab test ordered because of symptoms, and nearly every plan covers it. Code 87880 is the in-clinic swab that gives an answer in minutes. On a high deductible plan it still applies to the deductible, and a follow-up culture can arrive later as its own bill.
Usually
Covered as a diagnostic lab test
QW modifier
Medicare and most payers want the waived test modifier on this line. Leave it off and the claim denies over a certificate the clinic already holds.
Reflex culture
A negative rapid test often triggers a send-out throat culture, 87081. That becomes a second charge from a lab the patient never chose.
Symptoms required
Payers want a sore throat or fever in the note. A swab run as a routine add-on with nothing documented reads as screening and tends to deny.
Under a second
The check returns plan status and what is left on the deductible before the swab is opened, so the desk knows if the patient pays for this today.
What would a real check show for this patient's 87880?
Pick a sample plan and type your fee. This is the visibility a real-time check gives the desk for every actual patient, in under a second.
Eligibility readout · 87880
Sample- Coverage
- Active, $40 copay covers the visit and test
- Frequency
- No limit when symptoms are documented
- Patient share
- Type your fee to see it
Estimate from a sample plan. A real check reads the actual plan in under a second.
When 87880 is the right lab code
- Sore throat or fever documented as the reason
- Rapid in-clinic swab, read during the same visit
- Provider ordered it and the result is in the chart
- Waived test modifier added for Medicare and most payers
Documentation payers expect
The note needs the symptoms that justified the swab and the result itself, positive or negative. If a culture follows a negative rapid test, document that too, because the payer will see two strep lines on one patient.
Why a rapid strep test gets denied
What happens after the test
A negative rapid test often goes on to a throat culture, 87081, which leaves the building and returns as a separate lab bill weeks after the visit. A positive usually ends in a prescription, and if the plan wants prior authorization the pharmacy calls the clinic, not the patient. The visit itself bills on its own line, 99213 or 99203. Knowing what is left on the deductible before the swab lets the desk explain all of that once, upfront.
87880, quick answers
Is a strep test free with insurance?
Rarely free. It is a diagnostic test rather than a preventive screening, so it applies to the deductible or coinsurance on most plans. Flat copay plans usually fold it into the visit copay.
Does Medicare cover a rapid strep test?
Yes, under Part B on the clinical lab fee schedule, which normally means no coinsurance or deductible for the test itself. Medicare does expect the waived test modifier on the line or it denies.
Why did I get a second bill for a throat culture?
A negative rapid test is often confirmed with a culture sent to an outside lab. That lab bills your plan on its own claim, which is why the bill arrives later and under a different name.
Do I pay for the test and the visit?
Usually both on a deductible or coinsurance plan. On a flat copay plan the test typically sits inside the visit copay with nothing extra owed.
Can I skip the test and still be seen?
The test is billed on its own line, separate from the visit, so it only reaches the claim if it was actually run. Whether to run it is a conversation with the provider.
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Related: 87651 · 87081 · 87804
CPT is a registered trademark of the American Medical Association. This page is Valian's own plain-English summary for front-desk teams, not official CPT descriptor text, and is not billing or clinical advice. Coverage patterns are common plan behaviors; every plan differs. Verify benefits before the visit.