How To Use CPT Code 84402

CPT 84402 describes the measurement of free testosterone in patient serum. This article will cover the description, procedure, qualifying circumstances, appropriate usage, documentation requirements, billing guidelines, historical information, similar codes and billing examples.

1. What is CPT Code 84402?

CPT 84402 can be used to measure the levels of free testosterone in patient serum. This code is used when a lab analyst performs the necessary steps to mix the patient’s serum with specific substances to measure the active form of testosterone that is unbound to proteins in the blood.

2. Official Description

The official description of CPT code 84402 is: ‘Testosterone; free.’

3. Procedure

1. The lab analyst collects the patient’s serum sample.
2. The analyst mixes the specimen with specific substances to measure the levels of free testosterone.
3. The mixture is then analyzed using methods such as chromatography to determine the amount of free testosterone present.

4. Qualifying circumstances

CPT 84402 is typically ordered by clinicians to evaluate patients for conditions such as low sex drive, infertility, premature or delayed puberty, certain types of tumors, or testosterone replacement therapy. It can also be used to assess female patients for infertility, menstrual cycle irregularities, ovarian cysts, and abnormal physical traits like hirsutism. The test is performed on patient serum and requires the expertise of a lab analyst.

5. When to use CPT code 84402

CPT code 84402 should be used when measuring the levels of free testosterone in patient serum. It is appropriate to bill this code when the test is performed to evaluate patients for the aforementioned conditions or to monitor testosterone levels during testosterone replacement therapy.

6. Documentation requirements

To support a claim for CPT 84402, the documentation should include:

• Reason for ordering the test, such as low sex drive or infertility
• Details of the patient’s condition or symptoms
• Date of the test
• Results of the test, including the levels of free testosterone
• Signature of the clinician ordering the test

7. Billing guidelines

When billing for CPT 84402, ensure that the test is performed on patient serum and that the appropriate documentation is provided. It is important to follow any specific guidelines or requirements set by the payer. Additionally, consider reporting any additional codes that may be necessary for specimen collection or other related services.

8. Historical information

CPT 84402 was added to the Current Procedural Terminology system on January 1, 1993. There have been no updates to the code since its addition.

9. Examples

1. A clinician orders CPT 84402 to measure the levels of free testosterone in a male patient presenting with low sex drive.
2. A patient with irregular menstrual cycles undergoes CPT 84402 to assess the levels of free testosterone.
3. CPT 84402 is performed on a female patient with hirsutism to evaluate the levels of free testosterone.
4. A clinician orders CPT 84402 to monitor the levels of free testosterone in a patient undergoing testosterone replacement therapy.
5. A male patient with delayed puberty undergoes CPT 84402 to assess the levels of free testosterone.