Radiology Coding Alert

Reader Questions:

Is Modifier 59 Necessary for Reporting 72100 and 72148 on the Same DOS?

Question: A 55-year-old patient presented to our urgent care clinic with severe lower back pain after shoveling wet, heavy snow from their driveway and sidewalk. The physician ordered two-view X-rays of the patient’s lumbar spine. After reviewing the results of the X-rays, the physician ordered an MRI of the patient’s lumbar spine without contrast. Following review of the MRI images, the physician diagnosed the patient with a herniated disc between L2 and L3.

How would I report the imaging tests for this encounter?

Wisconsin Subscriber

Answer: You’ll need to report two separate CPT® codes for the encounter you described. You’ll assign 72100 (Radiologic examination, spine, lumbosacral; 2 or 3 views) to report the two-view X-rays of the patient’s lumbar spine. Then, you’ll assign 72148 (Magnetic resonance (eg, proton) imaging, spinal canal and contents, lumbar; without contrast material) to report the magnetic resonance imaging (MRI) without contrast of the patient’s lumbar spine.

Since there is no National Correct Coding Initiative (NCCI) edit for this code pair, you won’t need to append a modifier, such as 59 (Distinct procedural service), to either of the procedure codes.

Don’t forget the diagnosis: A herniated disc is another term for the displacement of an intervertebral disc. You’ll assign M51.26 (Other intervertebral disc displacement, lumbar region) to report the herniated disc diagnosis. The 5th characters of the M51.2- (Other thoracic, thoracolumbar and lumbosacral intervertebral disc displacement) subcategory specify which spinal region is experiencing the disc displacement. In this case, the 5th character “6” indicates the lumbar region.