CPT 87491, cpt code 87491, 87491 cpt code

CPT 87491 | Chlamydia Detection With Amplified Probe Technique

CPT code 87491 describes a laboratory test for detecting Chlamydia Trachomatis using the amplified nucleic acid probe technique. The specimen is collected from the urogenital tract, amplified, and then assessed for the presence of the bacteria using a nucleic acid probe.

What Is CPT Code 87491?

CPT code 87491 describes a laboratory test for detecting Chlamydia Trachomatis. This is a common sexually transmitted infection (STI) caused by a bacterium of the same name. The test is performed using an amplified nucleic acid probe technique.

The test is performed by extracting DNA or RNA from the specimen, usually collected from the urogenital tract, and then using amplification techniques, such as polymerase chain reaction (PCR), to increase the number of copies of a specific target nucleic acid sequence.

The amplified probe technique uses a nucleic acid probe, a fabricated single-strand DNA or RNA used to join with the complementary sequence in the specimen through a process called hybridization.

The nucleic acid probe includes a label, such as a radioactive or chemical tag, that allows the lab analyst to visualize the hybridization product.

Description

The CPT book describes CPT code 87491 as: “Infectious agent detection by nucleic acid (DNA or RNA); Chlamydia trachomatis, amplified probe technique.”

Procedure

A lab analyst performs a test for Chlamydia trachomatis using the amplified nucleic acid probe technique. This is a highly sensitive and specific method for detecting the presence of bacteria.

The lab analyst obtains a specimen from a direct source, such as a penile discharge swab or vaginal swab, collected from the patient. The specimen is then processed in the laboratory to extract the DNA or RNA of the bacteria.

One of the critical steps in this test is the amplification of the nucleic acid sequences of the bacteria using polymerase chain reaction (PCR).

PCR is a powerful technique that enables the lab analyst to obtain millions of copies of a specific target nucleic acid sequence, making it possible to detect even tiny amounts of the bacteria.

Once the amplification step is completed, the lab analyst uses a nucleic acid probe to assess the presence of the amplified nucleic acid sequences that indicate the presence of Chlamydia trachomatis.

A nucleic acid probe is a fabricated single-strand DNA or RNA sequence designed to bind to the complementary sequence in the specimen through a process called hybridization.

The nucleic acid probe includes a label, such as a radioactive or chemical tag, that allows the lab analyst to visualize the hybridization product.

The lab analyst carefully examines the results of the test to determine if the bacteria is present in the specimen.

If the nucleic acid probe hybridizes with the amplified nucleic acid sequences in the specimen, it indicates that the patient is infected with Chlamydia trachomatis.

CPT 87491 can be performed on various specimens, including urine, cervical, and urethral swabs.

The 87491 test is a quick, efficient and accurate method for detecting the presence of Chlamydia trachomatis, which is a common sexually transmitted infection (STI) that can cause serious health problems if left untreated.

How To Use CPT 87491

CPT 87491 can be used for a laboratory test to diagnose Chlamydia trachomatis. Clinicians may order this test when patients present with the pain while urinating or penile discharge.

Women may be asymptomatic, but the disease can lead to sterility if left untreated.

You can use CPT 87491 only to report a test for detecting the bacteria with the amplified nucleic acid probe technique.

You should use CPT 86631 or CPT 86632 to detect antibodies.

Make sure to understand the distinction between CPT 87490, CPT 87491, and CPT 87492 for direct probe, amplified probe, and quantification tests for Chlamydia trachomatis.

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