Pers hx of in-situ neoplasm of middle ear and resp sys

This code indicates a patient's past diagnosis of a non-invasive, localized cancerous growth (carcinoma in situ) that was confined to the middle ear or any part of the respiratory system. It signifies that the in-situ neoplasm has been successfully treated and is no longer present.

Apply this code when documenting a patient's medical history where an in-situ neoplasm of the middle ear or respiratory system was previously diagnosed and treated, and there is no current evidence of the disease. This is often used for follow-up care or when the history is relevant to current treatment decisions.

• Do not use this code if the in-situ neoplasm is still active or if there is any evidence of recurrence or metastasis.
• Ensure documentation clearly specifies "in situ" and the affected anatomical site within the middle ear or respiratory system.
• This code is for personal history only; do not use for family history of neoplasm.