Summary & Overview
CPT 73565: Standing Weight-Bearing Knee Radiographs
CPT code 73565 denotes a standing, weight-bearing radiographic exam of the knees performed to evaluate fractures, swelling, pain, joint alignment, or degenerative changes under physiological load. This imaging code is widely used across outpatient radiology settings and hospital imaging departments because weight-bearing views can reveal pathology not visible in non-weight-bearing positions. Nationally, the code matters for appropriate diagnostic workups of knee complaints and for aligning imaging utilization with clinical indications.
Key payers commonly encountered for this service include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the code’s clinical purpose, typical sites of service, and common billing modifiers and considerations. The publication provides benchmarks for utilization patterns, payer coverage notes, and coding relationship context to aid billing staff and revenue cycle teams in classifying and documenting the service. Clinical context highlights when standing knee radiographs are indicated and how weight-bearing views contribute to diagnosis. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 73565 describes radiographic imaging of the knees with the patient in a standing position facing the X-ray machine. The procedure captures weight-bearing images to evaluate fracture, swelling, or pain in the knee region and to assess joint alignment or degenerative changes under load.
Service Type: Diagnostic imaging — radiography (standing knee views)
Typical Site of Service: Outpatient radiology suite, hospital radiology department, or ambulatory imaging center
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult who presents to an outpatient radiology clinic or emergency department with acute knee pain after a fall, twist, or direct blunt trauma. The patient is able to stand for imaging and the clinician orders weight-bearing knee radiographs to evaluate for joint-space narrowing, tibiofemoral alignment, fracture, or meniscal/degenerative change contributing to pain or swelling. The technologist confirms the patient can bear weight, positions the patient facing the x‑ray tube with both knees centered on the image receptor, and obtains bilateral standing anteroposterior (AP) weight‑bearing views as indicated by the order. Images are sent to the interpreting physician (radiologist or orthopedist) for review. The radiology report documents clinical indication, views obtained, comparison studies if available, findings (such as fracture, joint effusion, osteoarthritis, or malalignment), and impression that supports diagnosis coding and subsequent clinical management.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
LT | Left side | When the procedure is performed on the left knee only or to designate laterality on bilateral services. |
RT | Right side |