Is CPT 85379 overcharged?
85379: D-dimer (blood clot screen) (Lab)
Approximate Medicare national rate
$10.18
Source: CMS Clinical Lab Fee Schedule CY2026 Q4 (national limit). National amount; actual Medicare payment varies by locality.
What's a reasonable charge?
Commercial insurers typically pay roughly 1.5 to 2.5 times Medicare. If you were billed more than $30.54 for 85379, ask for an itemized bill, request the provider's cash price, and dispute the difference.
Check your whole bill
Duplicates and unbundling are often worth more than a single high price. Scan your bill free