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Additional Sedation Time by a Second Provider

Illinois rates for HCPCS 99157

This covers each additional block of time that a separate qualified provider spends administering sedation medication and monitoring a patient during a procedure performed by a different physician. It is used when a procedure runs longer than the initial sedation period already accounted for.

Rates data updated October 2026.

How much does Additional Sedation Time by a Second Provider cost?

$64.57

Typical negotiated rate. In Illinois, October 2026.

Insurers have agreed to pay about $64.57 for this service. The price depends on where it is billed: about $64.57 from a physician practice, and about $91.20 from a hospital or other facility.

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 6 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$64.57$61.66 to $81.28
FacilityA hospital or hospital-owned outpatient department$91.20$60.26 to $468

How much rates vary

Facilitymedian $91 · 10th to 90th $43 to $794Professionalmedian $65 · 10th to 90th $54 to $98
$50$100$200$500$1Kfacility $91professional $65

Distribution of negotiated rates across all payers (price axis is log-scale). Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
None
Typical Low
$64.57
Median
$91.20
Typical High
$100.00
Aetna
Setting
Professional
Modifier
None
Typical Low
$57.54
Median
$64.57
Typical High
$72.44
BCBS Illinois
Setting
Facility
Modifier
None
Typical Low
$40.74
Median
$112.20
Typical High
$870.96
BCBS Illinois
Setting
Professional
Modifier
None
Typical Low
$53.70
Median
$63.10
Typical High
$81.28
Cigna
Setting
Professional
Modifier
None
Typical Low
$57.54
Median
$67.61
Typical High
$93.33
Hally Health
Setting
Professional
Modifier
None
Typical Low
$58.88
Median
$75.86
Typical High
$199.53
Hally Health
Setting
Facility
Modifier
None
Typical Low
$100.00
Median
$100.00
Typical High
$100.00
Hally Health
Setting
Professional
Modifier
None
Typical Low
$67.61
Median
$72.44
Typical High
$77.62
Molina
Setting
Professional
Modifier
None
Typical Low
$33.11
Median
$33.11
Typical High
$33.11
United
Setting
Professional
Modifier
None
Typical Low
$54.95
Median
$70.79
Typical High
$123.03
1 more rate with less common billing modifiers

A modifier changes what was billed, for example a reduced or repeated service. Each of these modifiers carries under 10% of the published rates for this code. Modifier combinations, and modifiers with fewer than 30 rates for a carrier, are not listed.

Insurance Carrier
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$11.75
Median
$12.88
Typical High
$12.88

Where Illinois sits

The same service costs 3.1 times more in Alaska than in New York. Every bar is a state, most expensive first. Touch or drag across it to read any state, then open that state for its carriers and full range.

Illinois· 33rd of 51

$64.57

AK $158NY $51.29

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.