California and Medi-cal 93000

I have been getting recent (last 3-4 months) denials from medi-cal for EKGs 93000 stating a modifier is needed but not present.

Does anyone have any idea what this is about?
Usually just OV and EKG billed.

OV paid and EKG denied for modifier.


~Thanks~

California and Medi-cal 93000