2025 CPT code 84402
(Active) Effective Date: N/A Revision Date: N/A Laboratory - Chemistry Procedures Pathology and Laboratory Procedures > Chemistry Procedures Feed
Measures the amount of free testosterone in a blood sample.
Modifiers may be applicable depending on the circumstances of service. Consult the CPT manual for specific modifier usage guidelines and any payer-specific requirements.
Medical necessity for a free testosterone test depends on the clinical presentation and requires appropriate clinical justification.Common reasons include evaluating symptoms of hypogonadism in males (decreased libido, fatigue, erectile dysfunction), investigating suspected endocrine disorders in females (irregular menses, hirsutism), monitoring hormone replacement therapy, and assessing fertility issues.
The clinical responsibility lies with the laboratory personnel who perform the technical aspects of the test, including sample preparation, analysis and reporting of results.The ordering physician is responsible for the medical interpretation of the results and clinical decision-making based on the findings.
In simple words: This blood test measures the amount of free testosterone in your body. Free testosterone is the type of testosterone that is active and can be used by your body's cells.It's different from total testosterone, which includes testosterone bound to proteins. This test helps determine if your free testosterone levels are too high or too low.
This test quantitatively measures the level of free testosterone (the unbound, biologically active form of testosterone) in a serum sample.Testosterone is a steroid hormone crucial for sexual development and function in both males and females.The test differentiates free testosterone from testosterone bound to proteins like sex hormone-binding globulin (SHBG) and albumin. Free testosterone is the fraction readily available for cellular uptake and exerts biological effects. The methodology may involve techniques such as chromatography or immunoassay.
Example 1: A 35-year-old male patient presents with symptoms of decreased libido and fatigue.The physician orders a free testosterone test to evaluate for hypogonadism., A 28-year-old female patient is experiencing irregular menstrual cycles and hirsutism.The physician orders a free testosterone test to investigate potential endocrine disorders, such as polycystic ovary syndrome (PCOS)., A 60-year-old male patient is undergoing hormone replacement therapy.The physician orders serial free testosterone measurements to monitor the effectiveness of the treatment and to adjust dosage accordingly.
Patient demographics, date of collection, test requisition indicating medical necessity (reason for the test), and the results of the free testosterone analysis. If multiple specimens were drawn on different dates or from different sources, this should be clearly documented and reported separately for each.
** Accurate interpretation of free testosterone results requires consideration of other hormonal parameters and the clinical context.Reference ranges vary between laboratories and should be used as a guideline, not an absolute threshold.
- Revenue Code: T1H (LAB TESTS - OTHER (NON-MEDICARE FEE SCHEDULE))
- RVU: Information not available in provided text.Refer to CMS fee schedules or other relevant payment databases for RVU data.
- Global Days: Not applicable. This is a laboratory test, not a surgical procedure.
- Payment Status: Active
- Modifier TC rule: Technical Component (TC) modifiers are not applicable to 84402 as this is a laboratory test.
- Fee Schedule: Information not available in provided text.Refer to historical CMS fee schedules or other relevant payment databases for this information.
- Specialties:Endocrinology, Urology, Gynecology, and other medical specialties where hormonal evaluation is necessary.
- Place of Service:Office, Hospital (Inpatient and Outpatient), Clinical Laboratory, Ambulatory Surgical Center