Instructor’s Guide for ICD-9-CM Diagnostic Coding and ...

There are several errors with this code assignment. 11403 is excision of benign lesion and this case specifies excision for a malignant lesion. The margins would be included in the dimension of the excised lesion; therefore the size should be reported as 3.5 cm (2.5 + .5 + .5). ................
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