Rapid flu test cost in Boise City, ID — inpatient
In Boise City, ID, 4 hospitals list a cash price for rapid flu test (influenza antigen) as an inpatient: from $24.70 to $127.00, with a median of $75.85. The lowest listed price is at Saint Alphonsus Regional Medical Center - Boise and 1 other hospital — $51.15 less than the median here. Across Idaho, the median is $74.00 at 9 hospitals.
Cash prices at 4 facilities across 2 cities for code 87804, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Mar 31, 2026 and Mar 31, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Boise City, ID.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Saint Alphonsus Regional Medical Center - Boise lowest Boise, ID · (208) 367-2121 HC Infectious Agent Antigen Immunoassay Direct Optical Observation Influenza | $24.70 | $38.00 | $14.30–$64.56 | 35% | Mar 31, 2026 source file |
| Saint Alphonsus Medical Center - Nampa lowest Nampa, ID · (208) 463-5000 HC Infectious Agent Antigen Immunoassay Direct Optical Observation Influenza | $24.70 | $38.00 | $14.30–$64.56 | 35% | Mar 31, 2026 source file |
| Saint Alphonsus Regional Medical Center - Boise Boise, ID · (208) 367-2121 PR Infectious Agent Antigen Immunoassay Direct Optical Observation Influenza | $38.36 | — | $13.24–$38.36 | — | Mar 31, 2026 source file |
| St Luke's Regional Medical Center Boise, ID · (208) 381-2222 | $127.00 | $127.00 | — | — | — source file |
| St Luke's Nampa Medical Center Nampa, ID · (208) 505-2000 | $127.00 | $127.00 | — | — | — source file |
| Saint Alphonsus Regional Medical Center - Boise Boise, ID · (208) 367-2121 HC Quest 11177 Infectious Agent Antigen Immunoassay Direct Optical Observation Influenza A | $130.00 | $200.00 | $14.30–$200.00 | 35% | Mar 31, 2026 source file |
Inpatient: lowest $24.70, median $75.85, highest $127.00 — a 5.1× difference within the same market.
As an outpatient, the same code is billed by 4 facilities here, median $49.35 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 2 of 2 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at none is it below every plan's rate. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
What it is
A rapid flu test checks a nose or throat swab for influenza within minutes. The code is billed once for each flu type tested, so a test for A and B may be billed twice.
What the price covers
The price usually covers the swab and the test for one flu type; tests for A and B may be billed twice.