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Report Produced: 12/21/2025 22:10 PM

Report Question ID Question
20130214 Primary site--Heme & Lymphoid Neoplasms: Does Rule PH20 apply if a patient with lymphoma has bilateral axillary and bilateral inguinal lymph node involvement?
20130064 Primary site--Heme & Lymphoid Neoplasms: Are hematopoietic primaries coded to C421 [bone marrow] or C420 [blood]?
20061146 Primary Site--Hematopoietic, NOS: Are there any guidelines for the use of topography code C420 [blood] rather than C421 [bone marrow], or C424 [Hematopoietic system, NOS] for hematopoietic diseases other than Waldenstrom macroglobulinemia?
20130182 Primary site--Head and Neck: How is primary site coded if a floor of mouth biopsy reveals microinvasive squamous cell carcinoma but the definitive resection of the tongue and floor of mouth unifocal lesion reveals only in situ squamous cell cancer? See Discussion.
20021183 Primary Site--Head & Neck: What site code is used to represent the following head and neck primary where there is not a clear statement of primary site? See discussion.
20031030 Primary Site--Head & Neck: What is the primary site for a tumor location described as being in the "gingiva between teeth #s 18 and 19?
20031021 Primary Site--Head & Neck: What is the anatomical distinction among tonsillar fossa, tonsillar pillar, and tonsil NOS?
20041032 Primary Site--Head & Neck: How is this field coded for a tongue primary described as "located on the lateral" or "left oral" tongue? See Discussion.
20021202 Primary Site--Head & Neck (Middle ear): How do you code site for a skull based tumor consistent with a low grade papillary adenocarcinoma of "endolymphatic sac origin"?
20000450 Primary Site--Esophagus: What is the difference between C15.5 [Lower third of esophagus] and C15.2 [Abdominal esophagus]?