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Antithrombin Activity Test

California rates for HCPCS 85300

This blood test measures how well a natural protein that helps regulate blood clotting is working. It is used to help investigate an unexplained tendency to form blood clots.

Rates data updated July 2026.

Facilitymedian $36 · 10th–90th $10$1450%10%10th90th$36Professionalmedian $14 · 10th–90th $8$760%10%20%10th90th$14$2.0$10.0$50.0$200.0$1.0K$5.0K

Distribution of negotiated rates across all payers (price axis is log-scale). Facility and professional rates are different services and are charted separately. Need provider-level prices? Contact us.

Insurance Carrier
Aetna
Setting
Facility
Modifier
Global
Typical Low
$10.00
Median
$45.71
Typical High
$144.54
Aetna
Setting
Professional
Modifier
Global
Typical Low
$8.91
Median
$14.13
Typical High
$77.62
Ambetter
Setting
Professional
Modifier
Global
Typical Low
$7.24
Median
$7.24
Typical High
$8.32
Anthem BCBS
Setting
Facility
Modifier
Global
Typical Low
$6.92
Median
$30.20
Typical High
$58.88
Anthem BCBS
Setting
Professional
Modifier
Global
Typical Low
$5.89
Median
$10.00
Typical High
$38.90
Blue Shield
Setting
Facility
Modifier
Global
Typical Low
$28.18
Median
$79.43
Typical High
$165.96
Blue Shield
Setting
Professional
Modifier
Global
Typical Low
$9.33
Median
$13.49
Typical High
$33.88
Cigna
Setting
Facility
Modifier
Global
Typical Low
$8.91
Median
$20.89
Typical High
$43.65
Cigna
Setting
Professional
Modifier
Global
Typical Low
$6.92
Median
$13.49
Typical High
$30.20
Contra Costa Health
Setting
Professional
Modifier
Global
Typical Low
$10.47
Median
$11.75
Typical High
$19.05
Kaiser Permanente
Setting
Professional
Modifier
Global
Typical Low
$9.55
Median
$11.75
Typical High
$27.54
Lucent Health
Setting
Facility
Modifier
Global
Typical Low
$138.04
Median
$138.04
Typical High
$144.54
Molina
Setting
Professional
Modifier
Global
Typical Low
$7.08
Median
$7.08
Typical High
$14.13
Providence
Setting
Facility
Modifier
Global
Typical Low
$9.77
Median
$14.13
Typical High
$37.15
Providence
Setting
Professional
Modifier
Global
Typical Low
$6.92
Median
$10.96
Typical High
$30.20
Sutter Health Plus
Setting
Professional
Modifier
Global
Typical Low
$41.69
Median
$41.69
Typical High
$41.69
The Alliance
Setting
Professional
Modifier
Global
Typical Low
$9.55
Median
$12.02
Typical High
$19.95
United
Setting
Facility
Modifier
Global
Typical Low
$5.01
Median
$8.71
Typical High
$17.78
United
Setting
Professional
Modifier
Global
Typical Low
$5.01
Median
$7.08
Typical High
$25.12