Hormone Therapy--Breast: How are hormone therapy (HT) and other related data items coded when a patient had a previous breast primary and is still on HT when diagnosed with a new breast primary? See Discussion.
Immunotherapy/Other
Therapy--Heme & Lymphoid Neoplasms: Is the elimination of immunosuppression
treatment coded as other treatment? An example is when a post-transplant
patient develops a malignant myeloproliferative neoplasm that subsides when
immunosuppression drugs are stopped.
Laterality--Brain and CNS: Can Laterality be coded as 5 (midline) for a sella turcica meningioma (or tuberculum sellae meningioma) when no other statement regarding tumor laterality is documented? See Discussion.
Laterality--Brain and CNS: When a meningioma extends to both right and left sides, is laterality coded 4 for bilateral or 9 for midline? See Discussion.
Laterality--Head and Neck: Were the topography codes C090 and C091 intentionally left off of the Sites for Which Laterality Codes Must Be Recorded table in the 2018 SEER Manual? The codes were also removed from Table 10 in the 2018 Solid Tumor Rules for Head and Neck but appear under coding instructions 1b. and 6b. in the manual.
Laterality: Why is a code 5 for laterality midline only allowed for certain sites of brain and skin? I have a nasal cavity tumor and the path report specifically says "Tumor laterality: midline". What is the correct laterality code here?
Lymph nodes/Melanoma: Is a single axillary lymph node regional or distant for a patient diagnosed in 2018 with metastatic melanoma to the brain found via imaging. The staging procedure was an single axillary lymph node excision that was positive for metastatic melanoma. The exact site of the primary was never determined; the primary site is coded to C449. See Discussion.
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