What Is Modifier 74 for Discontinued Procedures?

When a patient undergoes a medical procedure, healthcare providers use Current Procedural Terminology (CPT) codes to describe the services rendered for billing purposes. CPT codes are numerical descriptors for medical services that often require additional context to accurately reflect the patient encounter. This extra detail is provided by modifiers, which are two-digit codes appended to the main CPT code. Modifiers indicate that a service was altered, reduced, or affected by special circumstances, ensuring the payer has a complete picture of the service provided, especially for facility billing in outpatient settings.

Defining Modifier 74

Modifier 74 is officially defined as “Discontinued Outpatient Hospital/Ambulatory Surgery Center (ASC) Procedure After Administration of Anesthesia.” This specific code is used by the facility (such as an outpatient hospital department or an ASC) to report a planned surgical or diagnostic procedure that was initiated but stopped prematurely. The modifier signals to the payer that substantial resources were expended up to the point of termination, justifying a facility charge. The procedure must be discontinued after the patient has received some form of anesthesia, including general, regional, or monitored anesthesia care.

Specific Criteria for Proper Application

For Modifier 74 to be used correctly, several strict requirements must be met, centering on the expenditure of facility resources and patient safety. The planned procedure must require anesthesia and be performed in an outpatient hospital setting or an Ambulatory Surgery Center. The patient must have been physically prepared for the procedure and taken to the operating or procedure room. Primary is that anesthesia (general, regional block, or moderate sedation) must have been administered to the patient prior to the procedure being stopped.

The discontinuation must be due to extenuating circumstances that threaten the patient’s well-being or safety. Examples of a valid reason for termination include a sudden drop in blood pressure, an adverse reaction to the anesthetic agent, or the discovery of an unforeseen complication upon initial incision. The procedure must not be electively canceled or postponed based on the patient’s or physician’s choice before the start of the service. If the procedure is terminated before the administration of anesthesia, Modifier 73 is used instead.

Billing Implications and Required Documentation

When a facility submits a claim using Modifier 74, it is appended directly to the CPT code for the procedure that was originally scheduled. The modifier indicates that the facility consumed significant resources, including operating room time, specialized staff, and supplies, up to the point of termination. For procedures terminated after anesthesia has been administered, Medicare often provides full payment of the Outpatient Prospective Payment System (OPPS) amount to the facility. This payment recognizes that resource requirements are similar to those for a fully completed procedure, as the most resource-intensive steps have already taken place.

Robust and detailed documentation is necessary to support a claim with Modifier 74 and avoid denial. The operative report or procedure notes must clearly state the specific reason for the discontinuation. Documentation must also specify the exact services and supplies provided, along with a description of the steps performed before the procedure was halted. The type of anesthesia administered, and the time spent in the pre-operative, operative, and post-operative stages must be recorded.

Differentiating Modifier 74 from Related Codes

Modifier 74 must be distinguished from other codes that describe discontinued or reduced services, particularly Modifier 53 and Modifier 52. The fundamental difference is that Modifier 74 is a facility modifier, meaning it is used only by the hospital or Ambulatory Surgery Center for their charges. It cannot be used by the surgeon or other individual practitioners.

In contrast, Modifier 53, “Discontinued Procedure,” is used by the physician to report the professional component of a procedure that was terminated. The physician uses Modifier 53, while the facility uses Modifier 74 for the same patient encounter, reflecting the separate nature of their services. Modifier 52, “Reduced Services,” is used by the facility for a partial reduction or discontinuation of services that do not require anesthesia, such as certain radiology procedures. Unlike Modifier 74, which requires the administration of anesthesia, Modifier 52 is appropriate when no anesthesia was planned or used for the reduced service.