When Is It Appropriate to Use Category V1O, History of Malignant

When is it appropriate to use category V1O, history of malignant neoplasm?

A) Primary malignancy recurred at original site and adjunct chemotherapy is directed at the site.
B) Primary malignancy has been eradicated and no adjunct treatment is being given at this time.
C) Primary malignancy eradicated and the patient is admitted for adjunct chemotherapy to primary site.
D) Primary malignancy is eradicated; adjunct treatment is refused by patient even though there is some remaining malignancy.