Question

when coding neoplasms, ______ is defined as the absence of invasion of surrounding tissues. malignant primary carcinoma in situ unspecified nature benign

Explanation:

• Malignant primary: Refers to a cancer that starts in a particular organ and is invasive (opposite of what is described).
• Carcinoma in situ: It is a group of abnormal cells that have not invaded nearby tissue.
• Unspecified nature: Does not convey the specific meaning of absence of invasion.
• Benign: While benign tumors are not cancerous, the term "carcinoma in situ" is more specific in the context of neoplasm coding for absence of invasion (benign can be a general category, but carcinoma in situ is a precise term in medical coding for the described situation).

Answer:

carcinoma in situ