Coding a Flap after Mohs Surgery

Question:

A patient was seen by a dermatologist in their clinic for a MOHS procedure. After completion of MOHS, the patient went to the ambulatory surgical center for our ENT provider to perform CPT 14060. Since the ENT did not perform the MOHS excision but did perform the flap, would a 52 modifier have been appropriate since the opening excision was performed by a different specialty at a different location?

Answer:

Thank you for your question. Modifier 52 (Reduced Services) is only used when the same provider performs a service but reduces or does not complete the full work of the CPT code.

In this case your ENT did perform the full flap procedure described by CPT 14060. The fact that a different specialty performed the Mohs excision beforehand does not mean your ENT performed a reduced service. The ENT was not expected to perform the excision because the Mohs surgeon already did it. The flap reconstruction can be billed by ENT without a modifier.

*This response is based on the best information available as of 02/05/26.