93990 Doppler flow testing
Also known as: Doppler flow study, spectral Doppler, flow analysis
Doppler ultrasound velocity and flow pattern analysis of blood vessels to assess vascular hemodynamics and detect flow abnormalities.
In Plain Language
blood flow speed measurement; vessel flow assessment
Clinical Context
Used as an adjunctive assessment for vascular pathology including stenosis, thrombosis, steal syndrome, and assessment of venous reflux.
RVU Breakdown
| Work RVU | 0.49 |
| Total RVU | 0.49 |
Est. Medicare Payment
National estimate based on 2026 CMS PFS Conversion Factor ($33.40). Actual payment varies by locality (GPCI adjustment).
Billing & Documentation
Medicine section codes cover a wide range of non-surgical services. Documentation should include the clinical indication, procedure details, interpretation (if applicable), and any patient-specific findings.
How This Code Compares
With a work RVU of 0.49, this code ranks in the 33rd percentile among Medicine codes — 1.6x below the median (0.78). The highest wRVU in this category is 23.92.
Specialties
Frequently Asked Questions
What is CPT code 93990?
CPT 93990 (Doppler flow testing) is a Medicine code. Doppler ultrasound velocity and flow pattern analysis of blood vessels to assess vascular hemodynamics and detect flow abnormalities.
Who uses CPT code 93990?
CPT 93990 is used by Vascular Surgery, Radiology, Cardiology. Used as an adjunctive assessment for vascular pathology including stenosis, thrombosis, steal syndrome, and assessment of venous reflux.
When is CPT 93990 used?
Used as an adjunctive assessment for vascular pathology including stenosis, thrombosis, steal syndrome, and assessment of venous reflux.
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CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.