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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 non-contrast CT scans of the knee and ankle


If we perform CT scans of both the knee without contrast and the ankle without contrast, can we assign CPT® code 73700 twice?


The CT extremity codes are not like the MRI extremity joint codes, as they are not reported per joint. For CT procedures, one extremity = one code, so if the knee and ankle were imaged on the same leg, you assign CPT code 73700 once.

The code and full description are:

73700  Computed tomography, lower extremity; without contrast material