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Report Produced: 03/18/2026 17:01 PM

Report Question ID Question Discussion Answer Year
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?

Code the primary site as C03.1, lower gum.

According to the system used by the American Dental Association, tooth #18 and tooth #19 are lower. Teeth #1-16 are upper. Teeth #17-32 are lower.

 2003
20031029 Histology (Pre-2007)/Grading--Head & Neck: Can terms that commonly modify histologic types or grades be used if they are only expressed in the microscopic portion of the pathology report? See Description. Final path diagnosis on a biopsy of the base of tongue is squamous carcinoma. The micro portion of the path report states the following: Multiple fragments of abnormal epithelium with a complex growth pattern. Many of the cells are small and poorly differentiated, interspersed with areas of well-differentiated keratinized epithelium. This is consistent with squamous cell carcinoma in situ with areas of invasive carcinoma. Do we code histology to 8070/3 or 8071/3?

For tumors diagnosed prior to 2007:

Yes, code using terms from the microscopic description if there is a definitive statement of a more specific histologic type.

Code the case example as 8070/33 [Squamous cell carcinoma, NOS, poorly differentiated]. The microscopic description adds grade information, but does not make a definitive statement of a more specific histologic type. "Keratinized epithelium" is not the same as keratinizing squamous cell carcinoma (8071/3). The mention of "areas of well-differentiated keratinized epithelium" refers to "normal" tissue within the specimen, in contrast to a type of neoplastic tissue.

For tumors diagnosed 2007 or later, refer to the MP/H rules. If there are still questions about how this type of tumor should be coded, submit a new question to SINQ and include the difficulties you are encountering in applying the MP/H rules.

 2003
20031028

EOD-Lymph Nodes--Head & Neck: If a pre-treatment description of a chain of lymph nodes doesn't meet the criteria for involvement but the post-treatment description of the same chain of lymph nodes does, should those nodes be counted as involved in coding EOD? See Description.

(Primary site = larynx)

9/12/02 CT neck showed right cervical chain adenopathy. After chemotherapy, an 11/18/02 CT soft tissue of neck showed decrease in size by 50% of what was probably necrotic metastatic node to right mandibular angle.

The term "lymphadenopathy" should be ignored when determining involvement of lymph nodes per SEER. In this case, a probable necrotic metastatic node is mentioned in a subsequent CT taken after treatment.

Should lymph node involvement be coded to 9 based on the 9/12/02 CT or coded to 4 because of the mention of a decrease in size of what was probably a metatastic node on the 11/18/03 CT?

For cases diagnosed 1998-2003, code EOD using the best information available. In this example, the post-treatment description of lymph nodes. A post-treatment description of lymph nodes can be used to code lymph node involvement in the absence of disease progression. Pre-operative treatment does not affect lymph node involvement.

Case example: Code lymph nodes as involved (codes 1-4 depending on size and number) based on the later CT report.

 2003
20031026 EOD-Extension--Head & Neck: If there is no mention of vocal cord mobility, do we code indicating normal vocal cord mobility or do we code EOD-Extension to a "localized, NOS?" See discussion. How do we code EOD-extension for the following tumor of the supraglottic larynx? Limited stage small cell cancer of epiglottis per discharge signout. Physical exam revealed swelling of anterior aspect of epiglottis and narrowing of epiglottis. Neck without palpable masses. Laryngoscopy with biopsy and esophagoscopy showed extensive tumor involving entire laryngeal surface of epiglottis, extending onto aryepiglottic fold, onto false vocal cords and onto left true vocal cord. Ventricle on left side was obliterated with tumor. Right true vocal cord free of tumor. There is no information regarding vocal cord mobility. Biopsy of the left true vocal cord was negative. Should EOD-extension be coded to 20 [Tumor involves more than one subsite of supraglottis without fixation or NOS] or 50 [Localized NOS]? For cases diagnosed 1998-2003, if vocal cord mobility is not mentioned, code as normal mobility. Code EOD-extension for the example case as 20 [Tumor involves more than one subsite of supraglottis without fixation or NOS]. 2003
20031025 Histology (Pre-2007): Is a small cell undifferentiated carcinoma coded to 8041/34 [small cell carcinoma undifferentiated] or to 8045/34 [combination small cell AND undifferentiated carcinoma] using terms from the 2 columns in Appendix 1 of Coding Complex Morphologic Diagnoses? See discussion. Per pathology report, diagnosis is small cell undifferentiated carcinoma in biopsies taken from the laryngeal surface of the epiglottis and left false vocal cord.

For tumors diagnosed prior to 2007:

Code histology as 8041/34 [small cell carcinoma, undifferentiated]. The diagnosis indicates that this is an undifferentiated small cell carcinoma, rather than a mixture of small cell carcinoma with undifferentiated carcinoma.

For tumors diagnosed 2007 or later, refer to the MP/H rules. If there are still questions about how this type of tumor should be coded, submit a new question to SINQ and include the difficulties you are encountering in applying the MP/H rules.

 2003
20031024 Surgical Fields--Head & Neck: How does one code the removal of benign submandibular and sublingual glands performed during a neck dissection for a head and neck cancer? See discussion. Should the removal be coded as incidental in the surgical Procedure if the Other Site field? Does it make a difference if the submandibular gland is removed en toto with lymph nodes or if the gland is submitted as a separate specimen? Does it make a difference if the glands are involved?

Removal of the lower salivary glands is part of a radical neck dissection and is not recorded in Surgery of Primary Site or Surgery of Other Site. Radical neck dissection is coded under "Scope of Regional Lymph Node Surgery."

It does not matter whether or not the gland is submitted as a separate specimen. It does not matter whether or not the gland is involved.

 2003
20031023 Grade, Differentiation: Can differentiation be coded from the pathology report for a biopsy from tissue involved by local recurrence? Code grade from original primary site. Do not code grade from a local recurrence. 2003
20031022

Surgery of Primary Site--Head & Neck: Is a composite resection performed for an oral cavity primary coded to 40 [Radical excision of tumor, NOS], 41 [Radical excision of tumor only], 42 [Combination of 41 with resection in continuity with mandibles (marginal, segmental, hemi-, or total resection], 43 [Combination of 41 with resection in continuity with maxilla (partial, subtotal, or total resection)]? See discussion.

Example:

Patient underwent composite resection of left soft palate, tonsillar fossa, medial pterygoid and lateral tongue for a primary of the retromolar trigone. There was no mention of an excision of the mandible; however, the procedure included the application of a mandibular reconstruction plate.

 Use surgery codes 40-43 for composite resection of an oral cavity primary. In the case example, code Site-Specific surgery as 42 [Combination of 41 WITH resection in continuity with mandible]. Even though excision of mandible was not mentioned, there was mention of a mandibular reconstruction plate. Since the retromolar trigone is ON the mandible, resection of the mandible is likely. 2003
20031021 Primary Site--Head & Neck: What is the anatomical distinction among tonsillar fossa, tonsillar pillar, and tonsil NOS? Operative findings describe a right tonsil three times the size of the left tonsil. Tonsil is dissected from the tonsillar fossa. There appeared to be no involvement of tumor below the tonsillar capsule.

The tonsil lies in an indentation called the tonsillar fossa. The tonsillar fossa is bordered on either side by the tonsillar pillars. The tonsillar pillars are part of the supporting structure of the throat opening.

Code C09.9 [Tonsil NOS] as the primary site for the case above.

 2003
20031020

Surgery of Primary Site--Head & Neck: Is the removal of the left tonsil during a bilateral tonsillectomy for a right tonsil primary coded in the surgery of the primary site field to 27 [Excisional bx], 30 [Pharyngectomy, NOS], 31 [Limited/partial pharyngectomy; tonsillectomy; bilateral tonsillectomy], or to code 2 under the Surgical Procedure of Other Site field? See discussion.

Our notes document a 1/99 SEER e-mail stating that tonsillectomy/tonsillectomy with wide excision would be code to 31. Is this still correct? Some of our coders felt that code 27 or 30 would be more appropriate.

Is the removal of the contralateral tonsil incidental removal or do we code it under Surgery of Other Regional Site, Distant Site, or Distant Lymph Nodes? If it is coded, would 5 be the correct code?

Assign code 31 [Limited/partial pharyngectomy; tonsillectomy, bilateral tonsillectomy]. Do not code removal of the contralateral tonsil under Surgical Procedure of Other Site. Surgery to remove regional tissue with the primary site during the same procedure is coded in the Surgery of Primary Site field.

 2003