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PricedCare

Chlamydia test (DNA) in St. Louis, MO-IL costs $42 to $231. Here's every hospital's price.

17 hospitals in the St. Louis, MO-IL metro area publish a cash price for chlamydia test (dna) (CPT 87491). We read their files every month so you don't have to.

Across the St. Louis, MO-IL metro area, 17 hospitals list a cash price for chlamydia test (dna) (CPT 87491). The lowest is $42 at Ssm St Joseph Health Center, the median is $74 and the highest is $231 at Hshs Holy Family Hospital INC. The most expensive hospital lists 5.5 times the cheapest for the same code.

The St. Louis, MO-IL median of $74 is 13% above the national median of $66 across 554 US hospitals with a cash price for this code.

17 of these hospitals also publish the rates they negotiated with insurers, from $7 to $321. With insurance you pay a share of the negotiated rate, which is sometimes higher than the cash price; you may ask for the cash price instead.

The files behind these prices are dated between March 2026 and June 2026. 19 other hospitals in the metro area have no readable price for this code: some publish no file, some block automated reading, some leave the code out. They are listed below so you can call them.

$42
lowest cash price in St. Louis, MO-IL
Ssm St Joseph Health Center · 8 mi
$32 below the median
$74
median cash price
17 hospitals
5.5×
highest ÷ lowest
same procedure, same metro
17/36
hospitals with a cash price
19 don't · see who

Sorted by cash price

Hospital facility fee only
1
Ssm St Joseph Health Center

Saint Charles · 8 mi · File Apr 2026

$42
list $77 · lowest of 3 lines
2
Ssm St Clare Health Center

Fenton · 16 mi · File Apr 2026

$42
list $77 · lowest of 3 lines
3
Ssm Health St Mary's Hospital - St Louis

Saint Louis · 8 mi · File Apr 2026

$42
list $77 · lowest of 3 lines
4
Ssm Health Depaul Hospital St Louis

Bridgeton · 5 mi · File Apr 2026

$42
list $77 · lowest of 3 lines
5
Ssm St Joseph Hospital West

Lake Saint Louis · 24 mi · File Apr 2026

$42
list $77 · lowest of 2 lines
6
OSF Saint Anthony's Health Center

Alton · 15 mi · File Mar 2026

$50
list $84 · lowest of 5 lines
7
Ssm Health Saint Louis University Hospital

Saint Louis · 10 mi · File Apr 2026

$61
list $110 · lowest of 2 lines
8
Mercy Hospital Lincoln

Troy · 38 mi · File Jun 2026

$73
list $112 · lowest of 2 lines
9
Mercy Hospital Washington

Washington · 38 mi · File Jun 2026

$74
list $114 · lowest of 2 lines
10
Mercy Hospital Jefferson

Crystal City · 38 mi · File Jun 2026

$92
list $142 · lowest of 2 lines
11
Mercy Hospital St Louis

Saint Louis · 8 mi · File Mar 2026

$120
list $120
12
Mercy Hospital South

Saint Louis · 16 mi · File Mar 2026

$122
list $122
1

What's in the price

The hospital facility fee for CPT 87491. The doctor, anesthesia and lab work usually bill separately.

2

Cash vs. insured

Cash is what you pay without insurance. With insurance you pay a share of the negotiated rate, which can be higher than cash. You may ask for the cash price.

3

What to say on the phone

"I'd like the self-pay price for CPT 87491, in writing, and whether it covers facility, physician and anesthesia."

About chlamydia test (dna)

CPT 87491 is a nucleic-acid amplification test for Chlamydia trachomatis, the standard and most accurate test for the most common bacterial sexually transmitted infection. It uses a urine sample or a swab; results take one to three days. Routine screening is recommended yearly for sexually active women under 25 and for anyone with a new partner.

What the price covers

The laboratory test only. It is almost always ordered together with the gonorrhea test (87591), which is a separate code and a separate charge, and the visit or specimen collection is billed separately.

Why prices vary

Hospital cash prices for this single test range from around $30 to several hundred dollars. Public health clinics, Planned Parenthood, student health services and direct-to-consumer lab services usually offer combined chlamydia and gonorrhea testing for far less, sometimes free.

Questions to ask

  • What is the self-pay price for 87491, and for 87591 together?
  • Is there a collection or visit fee on top?
  • Is there a public-health or community clinic option nearby?

Hospitals in St. Louis, MO-IL without a price for this procedure

Listed so you know who to call. The reason is what we found on their website.

Questions people ask