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Darkfield Microscope Exam for Spirochetes

Pennsylvania rates for HCPCS 87166

Examination of fluid or scrapings under a microscope arranged so that light strikes the sample from the side, making extremely thin corkscrew-shaped bacteria stand out bright against a dark background. It is used mainly to look for the organism that causes syphilis in fluid taken from a sore, and it can give an answer straight away.

Rates data updated July 2026.

Facilitymedian $26 · 10th–90th $10$660%10%20%10th90th$26Professionalmedian $9 · 10th–90th $9$200%50%10th90th$9$5.0$20.0$100.0$500.0$2.0K$10.0K$50.0K

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
$9.55
Median
$26.92
Typical High
$42.66
Aetna
Setting
Professional
Modifier
Global
Typical Low
$8.71
Median
$9.33
Typical High
$26.92
Capital Blue Cross
Setting
Facility
Modifier
Global
Typical Low
$60.26
Median
$81.28
Typical High
$8,511.38
Capital Blue Cross
Setting
Professional
Modifier
Global
Typical Low
$8.71
Median
$8.71
Typical High
$11.22
Cigna
Setting
Facility
Modifier
Global
Typical Low
$8.13
Median
$17.38
Typical High
$38.90
Cigna
Setting
Professional
Modifier
Global
Typical Low
$6.61
Median
$14.45
Typical High
$27.54
Emblem Health
Setting
Professional
Modifier
Global
Typical Low
$5.37
Median
$8.13
Typical High
$16.22
Geisinger
Setting
Facility
Modifier
Global
Typical Low
$11.22
Median
$11.22
Typical High
$11.22
Geisinger
Setting
Professional
Modifier
Global
Typical Low
$11.22
Median
$12.59
Typical High
$19.50
Martin's Point
Setting
Facility
Modifier
Global
Typical Low
$9.12
Median
$28.18
Typical High
$42.66
Martin's Point
Setting
Professional
Modifier
Global
Typical Low
$8.71
Median
$9.55
Typical High
$33.11
UPMC Health Plan
Setting
Facility
Modifier
Global
Typical Low
$25.12
Median
$57.54
Typical High
$117.49
UPMC Health Plan
Setting
Professional
Modifier
Global
Typical Low
$10.00
Median
$11.22
Typical High
$16.22
United
Setting
Facility
Modifier
Global
Typical Low
$6.17
Median
$11.22
Typical High
$13.49
United
Setting
Professional
Modifier
Global
Typical Low
$4.79
Median
$7.41
Typical High
$19.05