Primary Site: Should we code C80.9 [unknown primary] or code C34.9 [Lung] according to the terminology, "most likely site of origin is lung"? See Description.
EOD-Lymph Nodes--Colon: Are "multiple submucosal lymphoid collections infiltrated with tumor" or "lymphoid areas" coded as lymph node involvement, similar to the way nodules in the pericolic fat are coded? See Description.
Histology (Pre-2007)--Lung: What code is used to represent the histology "mucin-producing bronchoalveolar carcinoma?" Is mucin-producing synonymous with mucinous?
EOD-Size of Primary Tumor--Prostate: Is this field coded to the size of a hypoechoic mass identified on a TRUS when there is no tumor size from the prostatectomy specimen?
EOD-Pathology Extension--Prostate: Is extracapsular extension implied by the phrase, "involvement of periurethral or urethral margins"? See Description.
EOD-Pathologic Extension--Prostate: Is extracapsular extension implied by the phrase "tumor invades the fibrous tissue of the capsule"? See Description.
EOD-Extension--Colon: Is a pathology description of "superficial invasion of the muscularis mucosa in the upper stalk of the polyp" coded in this field to 10 [mucosa (including intramucosal) NOS], 12 [Muscularis mucosa], or 14 [Stalk of polyp]? See Description.