Medicare requested prepayment documentation for lesion removal. (11642 11422 & 11441) I sent they operative report which showed lesion size in the heading of the op report.

Procedures:
1. Excision of left brow carcinoma in situ (1.5 cm)
2. Left lateral canthus skin lesion excision (0.6 cm)
3. Right oral commissure area skin lesion excision (1 cm)
4. Excision of scalp lesion (2 cm)

They denied stating documentation lacks the margin size of the lesions. I have searched high and low and cannot find anywhere that it states they have to specifically state margin size. Or even specific guidelines on what needs to be in medical record for lesion removal. Can anyone point me in the right direction. It is NGS Medicare Part B.

Thank you in advance.