Behavior/Date of Diagnosis--Lung: If the term "Pancoast tumor, NOS" is malignant by definition, should the date of diagnosis be coded to the date of the clinical diagnosis when the clinical diagnosis is made prior to the histologic confirmation of the malignancy?
Behavior/Summary Stage 2018--Colon: What is the correct behavior and Summary Stage for a case of intramucosal adenocarcinoma arising in tubular adenoma? AJCC states this is Tis, though SEER Summary Stagie states this is Localized (code 1). The histology is 8140/2 (adenocarcinoma in situ), but the SEER Summary Stage is Locallized.
Birthplace/Place of birth, country: For patients originally born in a country that is currently listed as "historic only", where the original birth country now has a one-to-many relationship with the current country, how should the reported original birthplace be coded? (Example: Yugoslavia)
Chemotherapy/Neoadjuvant treatment: Should neoadjuvant chemotherapy be coded for an incidental second primary discovered at the time of surgery? If so, how is the diagnosis date coded? See Discussion.
Chemotherapy: Should radiosensitizing chemotherapy agents (i.e., drugs typically coded as treatment for cancer) be coded as treatment when they are given in combination with radiation therapy with the intention of enhancing that treatment? See discussion.
Date of Diagnosis--Brain and CNS: How is the Date of Diagnosis coded when an MRI clinically diagnoses a borderline brain tumor on 4/4/2020, but the subsequent biopsy pathologically diagnoses a malignant brain tumor on 5/20/2020? See Discussion.
Date of Diagnosis--Colon: If a patient has a positive Cologuard test, is the date of diagnosis the date of the cologuard test or the date of the biopsy?
Date of diagnosis--Diagnostic confirmation: How are the diagnosis date and diagnostic confirmation coded when the pathology (needle biopsy followed by resection) reports GIST, NOS and the physician subsequently states this is a malignant GIST and treats the patient for a malignancy? See Discussion.