Personal history of in-situ neoplasm of other site

This code indicates a patient's past medical history of a non-invasive, localized cancerous growth that has not spread beyond its original site. It signifies that the in-situ neoplasm has been successfully treated or is currently in remission, and the patient is no longer actively undergoing treatment for it.

Use this code when documenting a patient's history of carcinoma in situ (CIS) at a site other than those specifically classified elsewhere (e.g., breast, cervix, colon). This applies to follow-up visits, routine screenings, or when the history of CIS is relevant to current medical management, even if the patient is being seen for an unrelated condition.

• Always sequence this code as a secondary diagnosis, as it represents a historical condition, not an active disease.
• Ensure the medical record clearly specifies "in situ" and the "other site" to justify this specific code.
• Do not use this code if the patient is currently being treated for the in-situ neoplasm; instead, use the appropriate active neoplasm code.