TB blood test (IGRA) cost in Seattle, WA
In Seattle-Tacoma-Bellevue, WA, 15 hospitals list a cash price for TB blood test measuring immune response (IGRA, gamma interferon): from $167.77 to $417.20, with a median of $205.68. The lowest listed price is at Saint Clare Hospital — $37.91 less than the median here. Across Washington, the median is $205.68 at 33 hospitals.
Cash prices at 15 facilities across 12 cities for code 86480, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Feb 28, 2026 and Apr 1, 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 Seattle-Tacoma-Bellevue, WA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Saint Clare Hospital lowest Lakewood, WA · (253) 588-1711 HC WHOLE BLOOD TB VIA QUANTIFERON | $167.77 | $582.04 | $61.98–$459.41 | 71% | Feb 28, 2026 source file |
| St Anthony Hospital Gig Harbor, WA · (253) 530-2050 HC WHOLE BLOOD TB VIA QUANTIFERON | $177.03 | $582.04 | $61.98–$459.41 | 70% | Feb 28, 2026 source file |
| Virginia Mason Medical Center Seattle, WA · (206) 223-6600 TB TEST, CELL IMMUN MEASURE | $177.48 | $348.00 | $208.80–$278.40 | 49% | — source file |
| Highline Medical Center Burien, WA · (206) 431-5237 HC WHOLE BLOOD TB VIA QUANTIFERON | $177.73 | $582.04 | $61.98–$523.84 | 69% | Feb 28, 2026 source file |
| St Francis Community Hospital Federal Way, WA · (253) 944-8100 HC WHOLE BLOOD TB VIA QUANTIFERON | $182.66 | $582.04 | $61.98–$459.41 | 69% | Feb 28, 2026 source file |
| Overlake Medical Center & Clinics Bellevue, WA · (425) 688-5000 Hc Tb, Quantiferon Gold | $186.00 | $372.00 | — | 50% | Apr 1, 2026 source file |
| St Joseph Medical Center Tacoma, WA · (253) 627-4101 HC WHOLE BLOOD TB VIA QUANTIFERON | $192.78 | $582.04 | $61.98–$459.41 | 67% | Feb 28, 2026 source file |
| Enumclaw Regional Hospital Association Enumclaw, WA HC WHOLE BLOOD TB VIA QUANTIFERON | $205.68 | $582.04 | $61.98–$523.84 | 65% | Feb 28, 2026 source file |
| Cascade Valley Hospital Arlington, WA · (360) 435-2133 HC QUANTIFERON | $256.80 | $321.00 | $27.29–$288.90 | 20% | — source file |
| Kaiser Permanente Central Hospital Seattle, WA · (206) 326-3000 TUBERCULOSIS TST CELL | $293.60 | $367.00 | $47.00–$167.00 | 20% | Apr 1, 2026 source file |
| Swedish Issaquah Issaquah, WA · (425) 313-4000 HC TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON CDM | $324.48 | $676.00 | — | 52% | Apr 1, 2026 source file |
| Swedish Medical Center / Cherry Hill Seattle, WA · (206) 320-2000 HC TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON LAB | $324.48 | $676.00 | — | 52% | Apr 1, 2026 source file |
| Swedish Medical Center / Cherry Hill Seattle, WA · (206) 320-2000 HC TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON | $324.48 | $676.00 | — | 52% | Apr 1, 2026 source file |
| Swedish Medical Center / Cherry Hill Seattle, WA · (206) 320-2000 HC TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON CDM | $324.48 | $676.00 | — | 52% | Apr 1, 2026 source file |
| Swedish Medical Center / Cherry Hill Seattle, WA · (206) 320-2000 HC TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON LAB | $324.48 | $676.00 | — | 52% | Apr 1, 2026 source file |
| Swedish Medical Center / Cherry Hill Seattle, WA · (206) 320-2000 HC TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON | $324.48 | $676.00 | — | 52% | Apr 1, 2026 source file |
| Swedish Medical Center / Cherry Hill Seattle, WA · (206) 320-2000 HC TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON CDM | $324.48 | $676.00 | — | 52% | Apr 1, 2026 source file |
| Swedish Edmonds Edmonds, WA · (425) 640-4000 HC TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON LAB | $324.48 | $676.00 | — | 52% | Apr 1, 2026 source file |
| Swedish Issaquah Issaquah, WA · (425) 313-4000 HC TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON | $324.48 | $676.00 | — | 52% | Apr 1, 2026 source file |
| Swedish Edmonds Edmonds, WA · (425) 640-4000 HC TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON CDM | $324.48 | $676.00 | — | 52% | Apr 1, 2026 source file |
| Swedish Edmonds Edmonds, WA · (425) 640-4000 HC TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON | $324.48 | $676.00 | — | 52% | Apr 1, 2026 source file |
| Swedish Issaquah Issaquah, WA · (425) 313-4000 HC TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON LAB | $324.48 | $676.00 | — | 52% | Apr 1, 2026 source file |
| Providence Regional Medical Center Everett Everett, WA · (425) 261-2000 HC TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON CDM | $351.52 | $676.00 | — | 48% | Apr 1, 2026 source file |
| Providence Regional Medical Center Everett Everett, WA · (425) 261-2000 HC TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON LAB | $351.52 | $676.00 | — | 48% | Apr 1, 2026 source file |
| Seattle Children's Hospital Seattle, WA · (206) 987-2000 Quantiferon TB Test | $417.20 | $417.20 | $105.13–$400.51 | — | — source file |
Outpatient: lowest $167.77, median $205.68, highest $417.20 — a 2.5× difference within the same market.
As an inpatient, the same code is billed by 14 facilities here, median $199.23. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
Cash or insurance?
At 8 of 10 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 1 it is 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
This blood test, known as an interferon-gamma release assay (IGRA), such as QuantiFERON, checks whether the immune system reacts to tuberculosis proteins. It is used to screen for TB infection, often for work, school or immigration, and replaces the skin test for many people.
What the price covers
The price usually covers the lab test only. The blood draw is often billed separately, and a chest X-ray after a positive result has its own charge.