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Ongoing Blood-Thinner Management, Later Months

Colorado rates for HCPCS 99364

This covers the ongoing work involved in managing a patient's warfarin (a blood-thinning medication) for each additional three-month period after the first, in the outpatient setting. It includes reviewing regular blood clotting test results, adjusting the medication dose as needed, giving the patient instructions, and ordering follow-up testing. This reflects the continued coordination needed to keep the blood-thinning level in a safe range over the long term.

Rates data updated July 2026.

How much does Ongoing Blood-Thinner Management, Later Months cost?

$52.48

Typical facility fee. In Colorado, July 2026.

Insurers have agreed to pay about $52.48 for this service. Most negotiated rates run $44.67 to $63.10.

These are rates insurers have negotiated with providers, not the amount a patient is billed. What you owe depends on your plan's deductible and coinsurance. Based on rates published by 3 insurance carriers under federal price transparency rules.

How much rates vary

Facilitymedian $52 · 10th to 90th $38 to $79Professionalmedian $93 · 10th to 90th $51 to $174
$20.0$50.0$100.0$200.0facility $52professional $93

Distribution of negotiated rates across all payers (price axis is log-scale). Each curve is scaled to its own total: facility and professional rates are different services, shown together to compare where they cluster. Small sample; interpret with caution. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Anthem BCBS
Setting
Professional
Modifier
Global
Typical Low
$41.69
Median
$41.69
Typical High
$51.29
Cigna
Setting
Professional
Modifier
Global
Typical Low
$69.18
Median
$95.50
Typical High
$173.78
Denver HMP
Setting
Facility
Modifier
Global
Typical Low
$38.02
Median
$52.48
Typical High
$79.43

Where Colorado sits

The same service costs 4.8 times more in Tennessee than in New Hampshire. Every bar is a state, most expensive first. Pick one to see its carriers and full range.

Colorado $52.48 · 46th of 49
TN $200NH $41.69

Median negotiated rate in each state, from every insurer that publishes one. States where no insurer publishes a rate for this service are not shown.