Answer: If the dermatologist removes a lesion fully, the procedure is
called an excision. In cases where he decides to take only a sample to
test the pathology of the lesion, he performs a biopsy.
Use CPT® code 11100 (Biopsy of skin, subcutaneous tissue and/or mucous membrane [including simple closure], unless otherwise listed; single lesion)
if the dermatologist decides to take a sample for biopsy. Report each
additional lesion biopsy with one unit of CPT® code +11101 (Biopsy
of skin, subcutaneous tissue and/or mucous membrane [including simple
closure], unless otherwise listed; each separate/additional lesion [List
separately in addition to code for primary procedure]).
To report an excision procedure, consider the size of the lesion,
location of the lesion, and nature of the lesion (malignant or benign)
to decide the appropriate CPT® code. Report a code from the range
11400-11446 (Excision, benign lesion including margins, except skin tag …….) for benign lesions of the skin. Report the appropriate CPT® code from the range 11600-11646 (Excision, malignant lesion including margins…) for malignant skin lesions.
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