20604 drainage/injection joint/bursa with ultrasound
Also known as: ultrasound-guided joint injection, US-guided arthrocentesis
Arthrocentesis performed with ultrasound guidance for improved accuracy and visualization of needle placement. This imaging-guided approach increases procedural success.
In Plain Language
ultrasound-guided needle into joint
Clinical Context
Used for arthrocentesis of joints difficult to palpate or requiring improved visualization. Reduces procedural complications and improves accuracy.
RVU Breakdown
| Work RVU | 0.87 |
| Total RVU | 0.87 |
Est. Medicare Payment
National estimate based on 2026 CMS PFS Conversion Factor ($33.40). Actual payment varies by locality (GPCI adjustment).
Billing & Documentation
As a surgical CPT code, proper documentation must include the operative report detailing the procedure performed, patient positioning, approach, findings, and any complications. This code has a 0-day global period, meaning pre- and post-operative E&M visits are billable separately on the same day. Ensure the diagnosis code (ICD-10) supports medical necessity for the procedure.
How This Code Compares
With a work RVU of 0.87, this code ranks in the 3rd percentile among Surgery codes — 9.2x below the median (8.00). The highest wRVU in this category is 106.19.
Specialties
Frequently Asked Questions
What is CPT code 20604?
CPT 20604 (drainage/injection joint/bursa with ultrasound) is a Surgery code. Arthrocentesis performed with ultrasound guidance for improved accuracy and visualization of needle placement. This imaging-guided approach increases procedural success.
What is the wRVU value for CPT 20604?
The work RVU for CPT 20604 is 0.87. This code is primarily used by Orthopedic Surgery, Rheumatology, Interventional Radiology.
When is CPT 20604 used?
Used for arthrocentesis of joints difficult to palpate or requiring improved visualization. Reduces procedural complications and improves accuracy.
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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.