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Extended Electroencephalogram (EEG), Over One Hour

Connecticut 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?

$562

Typical negotiated rate. In Connecticut, October 2026.

Insurers have agreed to pay about $562 for this service. Most negotiated rates run $447 to $661.

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.

How much rates vary

Facilitymedian $708 · 10th to 90th $302 to $1,380Professionalmedian $562 · 10th to 90th $339 to $832
$200$500$1Kfacility $708professional $562

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

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Professional
Modifier
None (both parts)
Typical Low
$380.19
Median
$588.84
Typical High
$602.56
Aetna
Setting
Professional
Modifier
26 · Professional part
Typical Low
$81.28
Median
$120.23
Typical High
$120.23
Aetna
Setting
Professional
Modifier
TC · Technical part
Typical Low
$295.12
Median
$467.74
Typical High
$478.63
Anthem BCBS
Setting
Professional
Modifier
None (both parts)
Typical Low
$398.11
Median
$537.03
Typical High
$776.25
Anthem BCBS
Setting
Professional
Modifier
26 · Professional part
Typical Low
$75.86
Median
$102.33
Typical High
$151.36
Anthem BCBS
Setting
Professional
Modifier
TC · Technical part
Typical Low
$316.23
Median
$426.58
Typical High
$630.96
Cigna
Setting
Facility
Modifier
None
Typical Low
$302.00
Median
$707.95
Typical High
$1,380.38
Cigna
Setting
Professional
Modifier
None (both parts)
Typical Low
$331.13
Median
$489.78
Typical High
$1,230.27
Cigna
Setting
Professional
Modifier
26 · Professional part
Typical Low
$104.71
Median
$112.20
Typical High
$223.87
Cigna
Setting
Professional
Modifier
TC · Technical part
Typical Low
$213.80
Median
$380.19
Typical High
$1,000.00
ConnectiCare
Setting
Professional
Modifier
None (both parts)
Typical Low
$446.68
Median
$741.31
Typical High
$977.24
Health New England
Setting
Professional
Modifier
None (both parts)
Typical Low
$173.78
Median
$173.78
Typical High
$173.78
United
Setting
Professional
Modifier
None (both parts)
Typical Low
$338.84
Median
$575.44
Typical High
$1,148.15
United
Setting
Professional
Modifier
26 · Professional part
Typical Low
$85.11
Median
$134.90
Typical High
$234.42
United
Setting
Professional
Modifier
TC · Technical part
Typical Low
$275.42
Median
$501.19
Typical High
$933.25
2 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
$186.21
Median
$295.12
Typical High
$295.12
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$75.86
Median
$117.49
Typical High
$117.49

Where Connecticut 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.

Connecticut· 17th of 51

$562

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.