ICD-10 Code for Patient-Requested Testosterone Screening
For a patient-requested screening for abnormal testosterone levels without specific symptoms or established risk factors, use ICD-10 code Z13.89 (Encounter for screening for other disorder) or Z71.89 (Other specified counseling).
Coding Rationale
The key issue here is that clinical guidelines explicitly state that testosterone screening should not be performed as a general screening test 1. The diagnosis of testosterone deficiency requires both low testosterone measurements and the presence of specific symptoms or signs 1.
When Testosterone Testing is Clinically Indicated
According to the 2018 AUA Guideline, testosterone measurement is appropriate when patients have 1:
Specific symptoms:
- Reduced libido or erectile dysfunction
- Decreased energy, endurance, or work performance
- Reduced muscle mass or strength
- Depression, poor concentration, or irritability
- Infertility
High-risk conditions (even without symptoms):
- Unexplained anemia
- Bone density loss or low-trauma fracture
- Diabetes
- HIV/AIDS
- Chronic narcotic use
- History of chemotherapy or testicular radiation
- Pituitary dysfunction
- Chronic corticosteroid use
Appropriate ICD-10 Codes by Clinical Scenario
If the patient has symptoms suggestive of hypogonadism:
- R53.83 - Fatigue (for decreased energy)
- F52.0 - Hypoactive sexual desire disorder
- N52.9 - Male erectile dysfunction, unspecified
- R53.1 - Weakness
If the patient has a risk factor condition:
- Use the specific ICD-10 code for the underlying condition (e.g., E11.9 for type 2 diabetes, D64.9 for unexplained anemia)
For truly asymptomatic patient-requested screening:
- Z13.89 - Encounter for screening for other disorder
- Z71.89 - Other specified counseling (if discussing concerns about testosterone)
Important Clinical Caveats
The Two-Test Rule
If you proceed with testing, guidelines mandate that low testosterone must be confirmed with two separate early morning (before 10 AM) total testosterone measurements before making any diagnosis 1. A single test is insufficient.
Diagnostic Threshold
The clinical threshold for low testosterone is consistently <300 ng/dL on both measurements 1.
Common Pitfall
Do not use screening questionnaires to justify testosterone testing—they have poor specificity and sensitivity and should not substitute for proper clinical evaluation 1.
Documentation Strategy
To support medical necessity for insurance purposes, document any relevant symptoms or risk factors in the medical record, even if the patient frames it as a "screening request." If the patient truly has no symptoms or risk factors, document the discussion about the lack of clinical indication for testing and the patient's understanding that this is not guideline-concordant care.
Special Consideration for Diabetes
Men with diabetes warrant particular attention, as mean testosterone levels are lower in men with diabetes, though obesity is a major confounder 2. If your patient has diabetes, this provides stronger justification for testing and you should use the diabetes ICD-10 code as the primary diagnosis.