Sed Rate Test Cost and Medicare Coverage (CPT 85652)
Also called: ESR · sedimentation rate · SR — all the same test, CPT 85652.
No test-specific policy — general Medicare medical-necessity rules apply what's this?
Medicare has no national or regional policy written for this specific test. The general standard applies instead: it’s covered when your doctor orders it for a medical reason — evaluating symptoms, or monitoring a condition or medication — and not as routine screening.
- Does Medicare cover it?
- Yes — covered
- You pay if covered
- $0 — no deductible, no coinsurance
- Medicare pays the lab
- $2.70
- Information verified
- 2026-09-17
Buy it yourself — what you'd really pay
| Where | Test price | Fee | Total |
|---|---|---|---|
| Jason Health jasonhealth.com | $10 | $18 one fee per order — covers every test on it | $28 |
| Ulta Lab Tests ultalabtests.com Partner link — we earn a commission if you order. No extra cost to you. | $23.95 | $12.95 draw fee — one per order, covers every test on it | $36.90 |
| Personalabs personalabs.com · price includes the draw; not a partner — we earn nothing from this row | $49.70 | — | $49.70 |
Disclosure: the Ulta Lab Tests link above is a partner link. If you order through it, ClaraCover earns a commission. It costs you nothing extra, and it never changes what we tell you about Medicare coverage.
The short answer
Yes — when it’s ordered for a medical reason, which is how this old workhorse is nearly always used. The sed rate has no special Medicare policy; the general rule applies, and evaluating or tracking inflammation easily satisfies it. It’s among the cheapest tests in the entire fee schedule — Medicare pays the lab $2.70 — so it should never be the line that surprises you on a bill.
When Medicare DOES cover it
- Evaluating symptoms of inflammation — unexplained fevers, aches, headaches in older adults (where certain artery inflammation is a concern), and general “something inflammatory is going on” workups
- Diagnosing and tracking inflammatory conditions — polymyalgia rheumatica, temporal arteritis, rheumatoid arthritis, and other autoimmune and inflammatory diseases where the sed rate helps gauge activity
- Monitoring treatment of those conditions over time
When Medicare does NOT cover it
- Routine screening — a sed rate with no symptom or condition behind it (rare in practice for this test).
What you pay if it IS covered: $0
Covered lab tests cost Medicare patients nothing — no deductible, no 20% coinsurance. Medicare pays the lab $2.70, and you owe zero.
What it costs to buy yourself
$10 at Jason Health (jasonhealth.com — add their flat $18 lab-collection fee per order). Quest’s and Labcorp’s consumer sites sell the ESR only inside larger inflammation panels, so Jason is the budget direct option — though at these prices, the covered route through your doctor is the natural path.
What counts as a “normal” sed rate result
Start with the range printed on your own report. There is no single published standard to compare it with. Unlike blood sugar or cholesterol, no major medical body publishes an agreed cut-off for this test, so each laboratory sets its own from its own sample of people on its own equipment. Two labs can report the same blood differently.
The sed rate also rises naturally with age and differs between men and women, and it tells your doctor that inflammation is present somewhere without indicating where or why.
(Where lab ranges and “optimal” ranges come from, and who decides.)
This page can tell you where those numbers came from. It cannot tell you what yours means — that reading belongs to your doctor, alongside your history and your other results.
Quick questions people ask
What’s ESR in a blood test? ESR — erythrocyte sedimentation rate, the formal name for the sed rate — measures how quickly your red blood cells settle in a tube over one hour. Inflammation changes blood proteins in ways that make cells clump and fall faster, so a high ESR is a general “inflammation somewhere” signal. It doesn’t say where — it points your doctor toward more specific testing. On billing paperwork it’s CPT code 85652.
What does “ESR Westergren” mean on my lab order? Just the method: Westergren is the standard technique (a specific tube, measured for one hour) — the name of the inventor, not a different test. “Sed rate by modified Westergren” and “ESR” on an order are the same thing.
Sed rate vs. CRP — why order both? They’re overlapping inflammation markers with different personalities: CRP rises and falls within days, the sed rate moves more slowly. Doctors sometimes order both to time-stamp an inflammatory process. Separate tests, separate codes, both inexpensive.
Do you have to fast for a sed rate test? No. Fasting isn’t required. It’s usually drawn with a CRP and a CBC, none of which need fasting either, but if a fasting test is on the same order, you fast for the visit. Our fasting guide has the details.
Sources and data dates
Medicare payment amount: CMS Clinical Laboratory Fee Schedule, 2026 Q3 file (national rate). Coverage: no test-specific national policy — general Medicare medical-necessity rules apply. Consumer prices and catalogs checked September 2026. Information current as of the date shown above; coverage is always determined by Medicare when your claim is processed.
ClaraCover provides information, not medical, billing, or insurance advice. Talk to your doctor about what tests you need.
Covered diagnoses for CPT 85652
There is no national diagnosis list for CPT 85652. Coverage follows the general "reasonable and necessary" standard and any local coverage determination your Medicare contractor has written, as this page describes; the diagnosis on the order still has to support the test.
Billing office? The full list, a batch check, and no daily limit are what we are building for you: tell us you want it. For why lab tests are the one place Medicare gives a straight answer, see what "reasonable and necessary" means.