ED is a valid 2023 HCPCS Modifier that could be used to indicate Hematocrit level has exceeded 39% (or hemoglobin level has exceeded 13.0 g/dl) for 3 or more consecutive billing cycles immediately prior to and including the current cycle.
ED Modifier has been in effect since Jan 01, 2008.
Short description for ED HCPCS Modifier code:
Hct>39% or hgb>13g>=3 cycle