Lab tests CPT 87491 Inpatient — admitted to hospital

Chlamydia test cost in Walla Walla, WA — inpatient

In Walla Walla, WA, 1 hospital lists a cash price for chlamydia test by nucleic acid amplification (NAAT, PCR-type) as an inpatient: from $33.60 to $33.60, with a median of $33.60. Across Washington, the median is $143.10 at 33 hospitals.

Cash prices at 1 facility for code 87491, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Apr 1, 2026.

Lowest$33.60Providence St Mary Medical Center
Median$33.60half pay less
Highest$33.60in this market
Difference1.0×highest vs lowest

Where each hospital's price falls

Each dot is one hospital's cash price on a scale from the lowest to the highest in Walla Walla, WA.

median
Lowest $33.60Highest $135.80

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Providence St Mary Medical Center lowest Walla Walla, WA · (509) 522-5900 HC IADNA CHLAMYDIA TRACHOMATIS AMPLIFIED PROBE TQ $33.60 $48.00 — 30% Apr 1, 2026
source file
Providence St Mary Medical Center Walla Walla, WA · (509) 522-5900 HC CHLAMYDIA TRACHOMATIS AMPLIFIED DNA $47.60 $68.00 — 30% Apr 1, 2026
source file
Providence St Mary Medical Center Walla Walla, WA · (509) 522-5900 HC CHLAMYDIA TRACHOMATIS AMPLIFIED PROBE $47.60 $68.00 — 30% Apr 1, 2026
source file
Providence St Mary Medical Center Walla Walla, WA · (509) 522-5900 HC IADNA CHLAMYDIA TRACHOMATIS AMPLIFIED PROBE TQ LAB $47.60 $68.00 — 30% Apr 1, 2026
source file
Providence St Mary Medical Center Walla Walla, WA · (509) 522-5900 HC CHLAMYDIA TRACHOMATIS PCR $135.80 $194.00 — 30% Apr 1, 2026
source file

Inpatient: lowest $33.60, median $33.60, highest $33.60.

As an outpatient, the same code is billed by 1 facility here, median $33.60 — that is the price to compare if you are not being admitted.

What it is

This test looks for the genetic material of Chlamydia trachomatis using a nucleic acid amplification test (NAAT), the most accurate type of chlamydia test. It is run on a urine sample or a swab and is used for routine screening and when there are symptoms.

What the price covers

The price usually covers the chlamydia test only. The visit, the sample collection and a gonorrhea test on the same sample (87591) are usually billed separately.