--- title: COVID-19 Antibody Test Test type: test id: covid-antibody url: "https://www.test-well.com/tests/covid-19-antibody" price_usd: 51.99 lab_fee_usd: 6 all_in_usd: 57.99 category: Immunity & Vaccination sample: Blood draw fasting_required: false results_in: "2–4 business days" labs: - Labcorp orderable: false --- # COVID-19 Antibody Test Test > Detects antibodies from COVID-19 infection or vaccination to assess immune response, measured from a standard blood draw. At TestWell it costs $51.99 plus a $6 lab fee, needs no fasting, and results post in 2–4 business days. Physician-authorized with no doctor's visit or insurance needed; draw at Labcorp. **Not orderable yet.** This test is listed for information; TestWell is finishing lab registration and it cannot be added to a cart today. ## Key facts | Fact | Value | | --- | --- | | Price | $51.99 + $6 lab processing fee per order ($57.99 all-in for this test alone) | | Sample | Blood draw | | Fasting | Not required | | Results | 2–4 business days | | Labs | Labcorp | | Biomarkers measured | 1 | | Physician authorization | Included — no doctor's visit, referral or insurance needed | | Payment | Card, HSA or FSA; cash-pay only (no insurance billing) | ## What does the COVID-19 Antibody Test test tell you? Detects antibodies from COVID-19 infection or vaccination to assess immune response. This test detects IgG antibodies to SARS-CoV-2, indicating a prior infection or immune response to vaccination. It measures antibodies to the spike protein, which are produced by both infection and most vaccines. While the presence of antibodies suggests some level of immunity, the exact level of protection they confer is still being studied. **Clinical use:** Detects IgG antibodies to SARS-CoV-2. Distinguishes past infection from vaccine-only immunity using N-protein (infection-only) vs S-protein (both) antibodies. Useful for assessing prior exposure or vaccine response in immunocompromised patients. ## Who should order it? Anyone curious about past asymptomatic COVID infection, immunocompromised patients evaluating vaccine response, post-COVID convalescent plasma donors, anyone investigating Long COVID symptoms. ## Biomarkers measured - SARS-CoV-2 Spike IgG ## Price by lab | Lab | Test price | All-in (with $6 fee) | Notes | | --- | --- | --- | --- | | Labcorp | $51.99 | $57.99 | Choose at checkout; walk-in patient service centers nationwide (not NY/NJ) | Rhode Island is not served. Prices are identical online and in the lab; no draw fee or physician fee is added. ## How much does a COVID-19 Antibody Test test cost? A COVID-19 Antibody Test test costs $51.99 at TestWell — $57.99 all-in when ordered alone, because the $6 lab processing fee is charged once per order, with no draw fee or physician fee added. Hospital outpatient labs typically bill around $180.00 self-pay for the same test, and often more. With insurance, what you pay depends on your deductible and your plan's negotiated rate; TestWell's price is fixed before the draw and is HSA/FSA-eligible. | Where you order | Price | One test, all-in | Notes | | --- | --- | --- | --- | | TestWell (drawn at Quest or Labcorp) | $51.99 | $57.99 | Includes the one $6 lab processing fee, charged once per order | | Hospital outpatient lab, self-pay (typical) | $180.00 | $180.00 | Reference figure; hospital charges vary widely by facility and are often higher | ## How do you prepare? No fasting required. ## Related conditions - Post COVID-19 condition (U09.9) - History of COVID-19 (Z86.16) - Asymptomatic COVID-19 (U07.1) - Long COVID (U09.9) ## Common questions about the COVID-19 Antibody Test test ### What does the COVID antibody test detect? IgG antibodies to SARS-CoV-2. Most tests measure antibodies to the spike (S) protein, which both natural infection AND vaccines produce. Some tests also measure nucleocapsid (N) protein antibodies, which only develop after natural infection — useful for distinguishing past illness from vaccine-only immunity. ### Does a positive COVID antibody test mean I'm immune? Partially. Antibodies indicate prior exposure (natural or vaccine), and higher levels generally correlate with reduced severity of subsequent infection. But there's no validated cutoff that guarantees immunity, and antibody levels wane over months. Cellular immunity (T-cell memory) provides additional protection that this test doesn't measure. ### How long after infection do antibodies appear? IgG antibodies typically develop 2-3 weeks after symptom onset and peak around 4-6 weeks. They can persist for 6-12 months or longer, often gradually declining. Test at least 3-4 weeks after suspected infection or vaccination for reliable results. ### How much does a COVID antibody test cost without insurance? On TestWell, the COVID Antibody Test is $51.99. Quest Direct lists the same test at $69, walk-in hospital labs typically bill $130-180 without insurance. ### What is the CPT code for COVID antibody testing? The CPT code for SARS-CoV-2 antibody testing is 86769 (qualitative or semi-quantitative IgG). Spike-specific IgG is sometimes billed as 86328. ### Do I need to fast? No fasting required. Any time of day. ### Should I order antibody testing vs an active COVID test? Different uses. Antibody testing detects PAST exposure (infection or vaccine). For active infection, use a PCR or rapid antigen swab test (we don't currently offer these). Antibody testing is most useful for retrospective questions ('did I have COVID last winter?') and for immune-response assessment in immunocompromised patients. ## How to order This test is not orderable yet. Browse orderable tests at https://www.test-well.com/tests. ## Related - [Hepatitis B Immunity Test](https://www.test-well.com/tests/hepatitis-b-immunity) — $31.99 - [Measles Immunity Test](https://www.test-well.com/tests/measles-immunity-test) — $129.99 - [Varicella (Chickenpox) Titer — Quantitative](https://www.test-well.com/tests/varicella-titer-quantitative) — $56.99 - [All Immunity & Vaccination tests](https://www.test-well.com/tests/category/immunity-vaccination) - [Full test directory](https://www.test-well.com/tests/directory) --- Canonical page: https://www.test-well.com/tests/covid-19-antibody Machine-readable catalog: https://www.test-well.com/api/catalog.json · MCP server: https://www.test-well.com/mcp · Overview for agents: https://www.test-well.com/llms.txt Prices are cash-pay, in USD, and include physician authorization; every order adds one flat $6 lab processing fee. Educational content is not a diagnosis — discuss results with a clinician.