efarley
New
As the combined posterior lumbar interbody fusion and posterior fusion (22633) is not allowed in the ambulatory surgery setting, is it acceptable to perform this as a staged procedure with the interbody fusion (22630) being done in an outpatient hospital and the posterior fusion (22612) being done in the ASC using the -58 modifier? If so, how does this affect reimbursement as compared to performing the combined fusion in the hospital? What about staging the anterior interbody fusion (22558) at the hospital and the posterior fusion in the ASC?