Ecosystems. ~0 answered questions. Parent Category: Ecology and Bionomics. This category is a discussion of the environment in which animals, plants, and microorganisms live, how they interact with each other and what the impact of various living entities have on the environment can be found in this section.
There are no codes in the vulvar excision section for a cyst removal (other than Bartholin's) and this cyst was of the labia so that rules out the vaginal cyst excision code of 57135. The code I have settled on is 11423: Excision, benign lesion including margins...genitalia; excised diameter 2.1 to 3.0cm.
The lesion measures 2 cm at its widest. To ensure removal of all malignancy, the surgeon allows a margin of at least 1.5 cm on all sides. To calculate the excised diameter, you should begin with the size of the lesion (2 cm) and add the width of the narrowest margin multiplied by 2 (1.5 x 2, or 3 cm total) for a total of 5 cm (2 + 3 = 5). In this case, therefore, you should report 11606 (Excision, malignant lesion including margins, trunk, arms or legs; excised diameter over 4.0 cm). Possible problem: When calculating excision diameter, be careful not to confuse the length of the incision with the size of the excision.