An oncology clinic documents secondary malignancy in bone. The primary site was previously excised and is documented only as history, with no current primary disease. How should primary versus history be reflected?
Select an answer to reveal the explanation.
Short Explanation
Metastasis can stick around after the original tumor is gone—that’s a documentation fork. Active secondary disease gets coded as secondary; the old primary, if excised and not current, is usually history. Don’t resurrect an active primary the note says is history.
Full Explanation
When a secondary (metastatic) malignancy is present and the primary has been excised with no further treatment of the primary, coding typically includes the secondary malignancy and a personal history code for the former primary. An active primary code is used only when documentation supports current primary disease. Omitting the secondary malignancy understates the reason for care. Family history codes are unrelated to the patient’s own metastatic disease.