Nursing home resident came to office, had excision on 11/5/08. Dr saw patient at nursing home on 11/14/08 for something unrelated to the excision on 11/5/08 billed with 99307. Excision has 10 day global period and on 11/14/08 this is 9 days. I called Medicare to have the claim reopened and was told that modifiers 24, 79 and 59 are not valid with CPT 99307. To me these are the only 3 modifiers that apply in this situation. Any other suggestions on how to get this paid? Thanks!