Summary & Overview
CPT 20606: Ultrasound-Guided Arthrocentesis of Joint or Bursa
CPT code 20606 denotes ultrasound-guided arthrocentesis with permanent recording and reporting for intermediate joints and bursae. The code captures procedures in which a needle is advanced into joints or bursae such as the temporomandibular, acromioclavicular, wrist, elbow, ankle, or olecranon bursa to aspirate fluid or deliver therapeutic injections under ultrasound visualization. This service is clinically important nationwide because it combines diagnostic and therapeutic value—relieving symptoms while enabling laboratory evaluation of synovial fluid to detect infection or inflammation.
Key payers included in this overview are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will get a concise explanation of clinical indications and typical sites of service, common billing considerations, and an outline of what to expect from payer coverage perspectives. The content highlights benchmarks and coding context relevant to outpatient procedural settings, and summarizes the clinical role of image-guided arthrocentesis. Data not available in the input is noted where specific payer policies, utilization metrics, or associated taxonomies and ICD-10 mappings would normally appear.
Billing Code Overview
CPT code 20606 describes an arthrocentesis with ultrasound guidance and permanent recording and reporting. The procedure involves inserting a needle through the skin into an intermediate joint or bursa—commonly the temporomandibular, acromioclavicular, wrist, elbow, ankle, or olecranon bursa—to aspirate synovial fluid or inject a therapeutic agent. Arthrocentesis can provide pain and swelling relief and serves as a diagnostic aid by allowing examination of synovial fluid for infection or inflammation.
Service Type: Image-guided arthrocentesis (diagnostic and/or therapeutic)
Typical Site of Service: Ambulatory surgical centers, outpatient clinics, emergency departments, and office-based procedural suites involving joints and bursae such as the temporomandibular, acromioclavicular, wrist, elbow, ankle, or olecranon bursa.
Clinical & Coding Specifications
Clinical Context
A 52-year-old patient presents to an outpatient musculoskeletal clinic with acute onset of progressive pain, swelling, and decreased range of motion of the right wrist after minor trauma. Physical exam demonstrates joint effusion with tenderness and limited flexion/extension. The provider schedules an ultrasound-guided arthrocentesis of the wrist to obtain synovial fluid for cell count and culture and to instill a corticosteroid for therapeutic relief. The procedure is performed in a procedure room using sterile technique. Real-time ultrasound guidance with permanent image recording is used to identify the effusion, guide needle placement into the radiocarpal joint, aspirate purulent or inflammatory fluid into a syringe for laboratory analysis, and then inject medication. The clinical workflow includes informed consent, pre-procedure time-out, ultrasound set-up and image capture, needle insertion and aspiration/injection, sample labeling and handoff to the laboratory, post-procedure observation for immediate complications, and documentation of findings, fluid characteristics, ultrasound images, and the permanent recording/reporting that supports the use of ultrasound guidance as part of the service billed under 20606.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
25 | Significant, separately identifiable evaluation and management service on the same day | Use when a distinct E/M visit is provided on the same day as and meets documentation requirements. |