Lab tests CPT 87491 Outpatient

Chlamydia test cost in Nashville, TN

In Nashville-Davidson--Murfreesboro--Franklin, TN, 4 hospitals list a cash price for chlamydia test by nucleic acid amplification (NAAT, PCR-type): from $33.48 to $105.30, with a median of $45.02. The lowest listed price is at Saint Thomas West Hospital and 1 other hospital — $11.54 less than the median here. Across Tennessee, the median is $54.45 at 44 hospitals.

Cash prices at 4 facilities across 4 cities for code 87491, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Oct 1, 2025 and Oct 1, 2025.

Lowest$33.48Saint Thomas West Hospital + 1 more
Median$45.02half pay less
Highest$105.30in this market
Difference3.1×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 Nashville-Davidson--Murfreesboro--Franklin, TN.

median
Lowest $33.48Highest $105.30

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Saint Thomas West Hospital lowest Harding Pk Nashville, TN · (615) 222-2111 CHLAMYDIA BY AMPLIFIED PROBE $33.48 $111.60 $31.58–$104.30 70% —
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Saint Thomas West Hospital lowest Harding Pk Nashville, TN · (615) 222-2111 CHLAMYDIA BY AMPLIFIED PROBE $33.48 $111.60 $31.58–$104.30 70% —
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Saint Thomas Rutherford Hospital lowest Murfreesboro, TN · (615) 396-4100 CHLAMYDIA BY AMPLIFIED PROBE $33.48 $111.60 $31.58–$105.09 70% —
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Saint Thomas Rutherford Hospital lowest Murfreesboro, TN · (615) 396-4100 CHLAMYDIA BY AMPLIFIED PROBE $33.48 $111.60 $31.58–$105.09 70% —
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Vanderbilt Wilson County Hospital Lebanon, TN · (615) 444-2250 HC MICROBIOLOGY CULTURE $56.55 $195.00 $33.25–$156.00 71% Oct 1, 2025
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Vanderbilt Wilson County Hospital Lebanon, TN · (615) 444-2250 HC CHLAMYDIA TRACHOMATIS/NEISSERIA GONORRHEA (TMA) CHLMYD TRACH DNA AMP PROBE - ARUP $56.55 $195.00 $33.25–$156.00 71% Oct 1, 2025
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Vanderbilt University Medical Center Nashville, TN · (615) 322-3454 HC MICROBIOLOGY CULTURE $105.30 $195.00 $20.00–$156.00 46% Oct 1, 2025
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Vanderbilt University Medical Center Nashville, TN · (615) 322-3454 HC CHLAMYDIA TRACHOMATIS/NEISSERIA GONORRHEA (TMA) CHLMYD TRACH DNA AMP PROBE - ARUP $105.30 $195.00 $33.25–$156.00 46% Oct 1, 2025
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Outpatient: lowest $33.48, median $45.02, highest $105.30 — a 3.1× difference within the same market.

As an inpatient, the same code is billed by 4 facilities here, median $45.02. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.

Cash or insurance?

At 4 of 4 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at none is it below every plan's rate. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.

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.