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75573 or 75574

Date: Jun 20, 2022

Question:

If a child has a cardiac congenital defect such as TOF repaired, should the follow up imaging be ordered/coded as non-congenital? Our practice routinely performs CT Heart post surgical repair that comes over ordered as 75573 (congenital) but our coders feel this should be 75574 (non-congenital).

"EXAMINATION: CT HRT W/3D IMAGE CONGEN.

CLINICAL HISTORY: 17-year-old with repaired Tetralogy of Fallot presents for evaluation of pulmonary arteries.

Technique: CT angiogram (CTA) of the heart with prospective gating and volumetric (wide axial) technique on a Canon AquilionOne CT scanner. Test bolus technique was used with 18 mL Optiray 320 intravenous contrast. 105 mL was used for the CTA. The total amount of Optiray 320 is 125 mL. Before contrast injection, the heart rate was 56 bpm. Heart rate during the study was 49 bpm regular. CTDI used during the CTA portion was 6.9 mGy. Total DLP 110.9 mGy-cm."

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