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Extended Electroencephalogram (EEG), Over One Hour

South Carolina rates for HCPCS 95813

Sensors placed on the scalp record the brain's electrical activity continuously over a longer session than a routine brain wave test, typically lasting more than an hour. The extra recording time increases the chance of capturing abnormal patterns, such as seizure activity, that might not appear during a shorter test. It is noninvasive and doesn't involve sampling from inside the body.

Rates data updated October 2026.

How much does Extended Electroencephalogram (EEG), Over One Hour cost?

$427

Typical negotiated rate. In South Carolina, October 2026.

Insurers have agreed to pay about $427 for this service. The price depends on where it is billed: about $427 from a physician practice, and about $759 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 7 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$427$257 to $550
FacilityA hospital or hospital-owned outpatient department$759$479 to $977

How much rates vary

Facilitymedian $759 · 10th to 90th $363 to $1,122Professionalmedian $427 · 10th to 90th $132 to $741
$100$200$500$1Kfacility $759professional $427

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
$426.58
Median
$426.58
Typical High
$1,174.90
Aetna
Setting
Professional
Modifier
None (both parts)
Typical Low
$398.11
Median
$426.58
Typical High
$549.54
Aetna
Setting
Professional
Modifier
26 · Professional part
Typical Low
$85.11
Median
$87.10
Typical High
$104.71
Aetna
Setting
Professional
Modifier
TC · Technical part
Typical Low
$316.23
Median
$338.84
Typical High
$436.52
Ambetter
Setting
Professional
Modifier
None (both parts)
Typical Low
$489.78
Median
$489.78
Typical High
$489.78
BCBS South Carolina
Setting
Facility
Modifier
None
Typical Low
$371.54
Median
$794.33
Typical High
$1,096.48
BCBS South Carolina
Setting
Facility
Modifier
TC · Technical part
Typical Low
$489.78
Median
$489.78
Typical High
$489.78
BCBS South Carolina
Setting
Professional
Modifier
None (both parts)
Typical Low
$169.82
Median
$281.84
Typical High
$446.68
BCBS South Carolina
Setting
Professional
Modifier
26 · Professional part
Typical Low
$85.11
Median
$100.00
Typical High
$123.03
BCBS South Carolina
Setting
Professional
Modifier
TC · Technical part
Typical Low
$63.10
Median
$186.21
Typical High
$363.08
Cigna
Setting
Facility
Modifier
None
Typical Low
$288.40
Median
$288.40
Typical High
$288.40
Cigna
Setting
Professional
Modifier
None (both parts)
Typical Low
$281.84
Median
$323.59
Typical High
$758.58
Cigna
Setting
Professional
Modifier
26 · Professional part
Typical Low
$87.10
Median
$97.72
Typical High
$165.96
Cigna
Setting
Professional
Modifier
TC · Technical part
Typical Low
$177.83
Median
$223.87
Typical High
$616.60
Medcost
Setting
Facility
Modifier
None
Typical Low
$234.42
Median
$467.74
Typical High
$1,174.90
Medcost
Setting
Professional
Modifier
None (both parts)
Typical Low
$281.84
Median
$316.23
Typical High
$562.34
Medcost
Setting
Professional
Modifier
26 · Professional part
Typical Low
$89.13
Median
$107.15
Typical High
$144.54
Medcost
Setting
Professional
Modifier
TC · Technical part
Typical Low
$194.98
Median
$229.09
Typical High
$575.44
Molina
Setting
Professional
Modifier
None (both parts)
Typical Low
$112.20
Median
$467.74
Typical High
$794.33
United
Setting
Facility
Modifier
None
Typical Low
$912.01
Median
$1,096.48
Typical High
$1,445.44
United
Setting
Professional
Modifier
None (both parts)
Typical Low
$295.12
Median
$398.11
Typical High
$676.08
United
Setting
Professional
Modifier
26 · Professional part
Typical Low
$81.28
Median
$93.33
Typical High
$147.91
United
Setting
Professional
Modifier
TC · Technical part
Typical Low
$194.98
Median
$309.03
Typical High
$524.81
7 more rates 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
52 · Reduced service
Typical Low
$204.17
Median
$213.80
Typical High
$213.80
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$81.28
Median
$85.11
Typical High
$85.11
Medcost
Setting
Professional
Modifier
51 · Multiple procedures
Typical Low
$141.25
Median
$158.49
Typical High
$363.08
Medcost
Setting
Professional
Modifier
80 · Assistant surgeon
Typical Low
$56.23
Median
$63.10
Typical High
$144.54
Medcost
Setting
Professional
Modifier
81 · Minimal assistant surgeon
Typical Low
$38.90
Median
$44.67
Typical High
$102.33
Medcost
Setting
Professional
Modifier
82 · Assistant surgeon, no resident
Typical Low
$38.90
Median
$44.67
Typical High
$102.33
Medcost
Setting
Professional
Modifier
AS · PA/NP assist
Typical Low
$38.90
Median
$44.67
Typical High
$102.33

Where South Carolina sits

The same service costs 3.2 times more in Alaska than in New Mexico. 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.

South Carolina· 39th of 51

$427

AK $977NM $302

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.