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The individuals who appear are for illustrative purposes. All persons depicted are models and not real healthcare professionals. US-N/A-2400043 05/24

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Coding for CT angiography of a lower extremity with contrast

Q.

Can we assign CPT® code 73706 with an LT and RT modifier if both sides were imaged during the same encounter?

A.

If both were ordered and medically necessary, then yes you can assign CPT code 73706 twice with modifiers LT and RT, or once with modifier -50. If one side was imaged for comparison, then you code only the affected side.

The code and full description are:

73706   Computed tomographic angiography, lower extremity, with contrast material(s), including non-contrast images, if performed, and image postprocessing