Does 73630 require a 50 modifier?

CPT code 73630, which refers to the X-ray of the knee, does not typically require a 50 modifier unless the procedure is performed bilaterally. The 50 modifier indicates that a procedure was performed on both sides of the body. If the X-ray was conducted on both knees, then the 50 modifier should be appended to the code. Always check specific payer guidelines for billing requirements.