CPT codes for magnetic resonance imaging (MRI) studies of the upper and lower extremities divided into codes for studies of the joint and nonjoint. CPT codes for computed tomography (CT of the upper and lower extremities are not divided in such detail, as their descriptors reference the broader terms of upper extremity or lower extremity. An MRI of the left elbow without contrast and an MRI of the left humerus without contrast are captured by two CPT codes, ie, 73221 for the elbow and 73218 for the humerus. What is the appropriate way to report a CT of multiple areas of the same extremity (eg, a CT without contrast of the left elbow and a CT without contrast of the left humerus)? ...
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Article Overview
This article explains a coding-focused comparison of extremity imaging in CPT, centered on how MRI studies of upper and lower extremities are divided into joint and nonjoint categories, while CT imaging is organized more broadly. It is relevant for coders, billers, and radiology staff who need to understand how the article frames extremity imaging scenarios and the related CPT reporting context.
Why This Topic Matters
Extremity imaging can involve multiple anatomical sites and different imaging modalities, so understanding how CPT categorizes these studies helps support consistent reporting and documentation review. The article is useful for anyone working with radiology coding who needs a high-level comparison of MRI and CT organization for upper and lower extremity studies.
What You Will Learn
- How the article distinguishes MRI extremity studies from CT extremity studies
- How upper and lower extremity imaging is discussed in CPT terminology
- The general reporting context for imaging multiple areas within the same extremity
- Why modality and anatomic grouping matter in radiology coding
Who Should Read This
- Medical coders
- Radiology coders
- Billing staff
- Radiology department staff
- Coding auditors
Codes Discussed
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