This is NOT my area of expertise but ...
58301 has "0" global days assigned, so Mod 25 is the correct modifier.
However, is it possible that this insurance carrier wants a -57 modifier? I know that the coding book would say this is wrong since the "surgery" was not a major procedure (90 days global), but some insurance carriers do not read the CPT (or at least they don't seem to).
OR ... could this be a carrier that does not want ANY modifier on a new patient visit. There have been posts about this issue, the idea being that by definition a "new patient" visit is significantly separate from any procedure and therefore exempt from needing the modifier.
Just "typing" out loud. Hope that helps.
F Tessa Bartels
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