#437: Rate of Surgical Conversion from Lower Extremity Endovascular Revascularization Procedure

Quality ID


High Priority Measure




Measure Type



Interventional Radiology

Measure Description

Inpatients assigned to endovascular treatment for obstructive arterial disease, the percent of patients whoundergo unplanned major amputation or surgical bypass within 48 hours of the indexprocedure



This measure is to be submitted each time an endovascular lower extremity revisualization procedure is performed during the performance period. There is no diagnosis associated with this measure. This measure may be submitted by eligible clinicians who perform the quality actions described in the measure based on the services provided and the measure-specific denominator coding.

NOTE: Include only patients undergoing an endovascular lower extremity revascularization procedure through December 29 of the performance period. This will allow the evaluation of at least 48 hours of the procedure withinthe performance period.

Measure Submission:

The listed denominator criteria is used to identify the intended patient population. The numerator options included in this specification are used to submit the quality actions allowed by the measure. The quality-data codes listed do not need to be submitted for registry submissions; however, these codes may be submitted for those registries that utilize claims data.



Patients undergoing endovascular lower extremity revascularization

Denominator Criteria (Eligible Cases):

All patients, regardless of age


Patient procedure during the performance period (CPT): 37220, 37221, 37224, 37225, 37226,37227, 37228, 37229, 37230, 37231



Documentation of planned hybrid or staged procedure: G9640



Number of patients undergoing major amputation or open surgical bypass within 48 hours of the indexendovascular lower extremity revascularization procedure


Major Amputation – An amputation at the level of the ankle or above

Numerator Instructions:

INVERSE MEASURE - A lower calculated performance rate for this measure indicates better clinical care or control. The “Performance Not Met” numerator option for this measure is the representation of the better clinical quality or control. Submitting that numerator option will produce a performance rate that is trends closer to 0%, as quality increases. For inverse measures, a rate of 100% means all of thedenominator eligible patients did not receive the appropriate care or were not in proper control.

Numerator Options:

Performance Met: Major amputation or open surgical bypass required within 48 hours of the index endovascular lower extremity revascularization procedure (G9641)


Performance Not Met: Major amputation or open surgical bypass not required within 48 hours of the index endovascular lower extremity revascularization procedure (G9639)

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