If a patient undergoes a computed tomography (CT) scan and, based on the findings, the

If a patient undergoes a computed tomography (CT) scan and, based on the findings, the physician determines that a CT angiography (CTA) of the same anatomic region is necessary, would it be appropriate to report codes for both the CT and CTA of the same anatomic region separately with an appended modifier to indicate that they are distinct procedures?

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CPT Knowledgebase - Jun 27, 2025