Question:

When do we assign code 36221?

Answer:

Code 36221 is assigned for what is commonly called an arch study. This is an examination of the carotid and vertebral arteries from a non-selective catheterization of the thoracic aorta. If the descending thoracic aorta is imaged other than during a carotid/vertebral diagnostic exam, such as during an extremity angiogram, code 75600 or 75605 (even if arch is included). Assign code 36221 if no further selective catheterization and imaging is performed for carotid and/or vertebral diagnostic imaging.

This question was answered in our Peripheral & Cardiology Coder. For more hot topics relating to cardiology services, please visit our store or call us at 1.800.252.1578, ext. 2.

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