Modifier -24, Unrelated evaluation and management
service by the same physician during postoperative
As the modifier indicates, this is another modifier that you can only append
with an E/M counter. It indicates that the E/M encounter is not related during
the global period.
Let's describe this modifier 24:
A pain specialist performed facet nerve destruction with 10 days global for the
patient. During the normal, postoperative global period, the patient came in to
the office with severe knee pain due to fall on ice as evidenced by the
patient's subjective information. The pain specialist will then report that E/M
encounter with the patient by appending modifier 24 to indicate that encounter
is not related during the postoperative global period.
This modifier, like modifier 25 has no restriction as with the level of E/M code
as long as it meets medical necessity, all its components or are time-based.