SEER Inquiry System - Search

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 a 2018 lung case whose pathology states adenocarcinoma, acinar predominant?

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 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 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 correct histology code for minimally invasive adenocarcinoma in the lung, 8140/3 or 8256/3? See Discussion.

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: Rule H3 of the Solid Tumor Rules was added to capture non-small cell carcinoma modified by ambiguous terminology when the physician confirms the ambiguous term as the histologic diagnosis, also included in Coding Histology instruction 3.B. If differentiation and features are not included in the histology term, does instruction 2 takes precedence? See Discussion.

Solid Tumor Rules (2018)/Histology--Lung: Is histology code or the number of primaries assigned differently in SINQ 20180093 if the word "pattern' was omitted? See Discussion.

Solid Tumor Rules (2018)/Histology--Lung: If the pathology states non-small cell carcinoma of the lung (NSCLC), consistent with squamous cell carcinoma, is the code non-small cell carcinoma according to the Solid Tumor Rules? The Medical Oncologist states that the tumor is a squamous cell carcinoma. In these instances would you code the squamous cell carcinoma since you have a definite physician statement?