What does the modifier 'UJ' indicate in terms of services?

The modifier 'UJ' is utilized specifically to denote services provided at night. This modifier is part of the HCPCS Level II coding system, which is designed to describe various services and procedures that are not fully captured by standard coding alone. By indicating that a service was rendered during nighttime hours, the 'UJ' modifier helps clarify the timing of the service, which may be relevant for billing and reimbursement processes.

While modifiers can indicate various circumstances surrounding a service, in this case, the focus on nighttime services is what differentiates the 'UJ' modifier from those associated with regular hours, surgical procedures, or telehealth services. Understanding the specific applications of each modifier is critical for accurately coding and ensuring proper reimbursement in healthcare.