SEER Inquiry System - Search

Solid Tumor Rules (2018)/Histology--Lung: The Histology coding guidelines for lung cancer state to code histology when stated as type or subtype but not to code when described as pattern. How should the histology be coded (Adeno, NOS or Adeno, Mixed subtypes) if the College of Americal Pathologists Protocol of the pathology report lists the following: Histologic type: Adenocarcinoma, papillary (90%), lepidic (8%), and solid (2%) patterns?

Solid Tumor Rules (2018)/Histology--Lung: What is the correct histology code for minimally invasive adenocarcinoma in the lung, 8140/3 or 8256/3? See Discussion.

Solid Tumor Rules (2018)/Histology--Lung: What is the correct histology of a lung mass with a CT-directed fine needle aspirate "positive for malignancy, favor squamous cell carcinoma. See Discussion.

Solid Tumor Rules (2018)/Histology--Lung: What is the difference between Lung Rules H7 and H8 (Single Tumor Module)? When would one use H8 rather than H7? See Discussion.

Solid Tumor Rules (2018)/Histology--Lung: What is the histology code of a 2018 lung cancer case with invasive non-mucinous adenocarcinoma? For non-mucinous carcinoma/adenocarcinoma, the Solid Tumor Rules have codes for microinvasive, minimally invasive, preinvasive, and in situ. Do we default to the microinvasive/minimally invasive code?

Solid Tumor Rules (2018)/Histology--Lung: What is the histology code of a 2018 lung case whose pathology states adenocarcinoma, acinar predominant?

Solid Tumor Rules (2018)/Histology--Lung: What is the histology code of a non-small cell lung cancer (NSCLC), NOS as this is not on the AJCC list of histologies? See Discussion.

Solid Tumor Rules (2018)/Histology--Lung: What is the histology code of invasive moderately differentiated adenocarcinoma, predominantly papillary subtype, with minor acinar and lepidic subtypes? See Discussion.

Solid Tumor Rules (2018)/Histology--Pancreas: How is the histology coded, and what H Rule applies, for a 2021 diagnosis when the pathological diagnosis is neuroendocrine tumor (NET) G1 or NET G2, but clinically, the tumor is stated to be insulinoma? See Discussion.

Solid Tumor Rules (2018)/Histology--Prostate: How is the histology coded for a diagnosis of mixed prostatic adenocarcinoma (5%) and small cell neuroendocrine carcinoma (95%) from a transurethral resection of the prostate? See Discussion.