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Report Produced: 04/28/2025 22:34 PM

Report Question ID Question Discussion Answer Year
20051132 Primary Site/CS Extension/CS Lymph Nodes--Lung: How are these fields coded for untreated lung primaries when only limited information is available from scans, bronchoscopies and biopsies? See Discussion.

3/13/04 CT scan Chest: extensive mediastinal, subcarinal, rt hilar lymphadenopathy; separate tumor mass in medial rt lung

3/16/04 Bronchoscopy: RLL/RML completely obstructed with extrinsic compression. Impression: CA of lung with hilar adenopathy.

Bronchial wash: PD non small cell CA

Bx RLL: up to 0.2 cm PD Adenocarcinoma c/w primary lung CA.

Treatment not recommended.

Expired 5/03/04.

This answer was provided in the context of CSv1 coding guidelines. The response may not be used after your registry database has been converted to CSv2.

The primary is in the right lung according to the available information.

Assign CS extension code 10 [Tumor confined to one lung]. The only information on extension is that there is a tumor in one lung.

Assign CS Lymph Nodes code 20 [Mediastinal and subcarinal lymph node involvement]. The CT scan confirms mediastinal and subcarinal lymphadenopathy.

Code tumor Size as 999 [Unknown]. "Completely obstructed" is not a size. Do not code the size of the biopsy specimen.

 2005
20051063 Primary Site/CS Tumor Size/CS Extension--Lung: How are these fields coded when a chest CT for lung cancer documents multiple masses in different lobes of the lung? See Discussion.

Example

Chest CT: "Almost complete consolidation of RUL and superior segment of RLL, highly suspicious for malignancy and represents primary bronchogenic carcinoma until proven otherwise. Multiple pulmonary masses bilaterally consistent with metastatic disease."

The physician describes multiple masses throughout RLL and LLL of lung suspicious for met disease, particularly lesion in LLL measuring 2.5 cm. The 2 cm mass in right lung abuts pleura, another mass in RLL measures 2.5 cm, smaller nodules in RLL and another 1 cm lesion abuts the pleura. Bx of a rt supraclavicular LN is positive for met carcinoma c/w lung primary.

Would primary site be coded to RLL because the scan states that the lesions on the right side represent primary bronchogenic carcinoma until proven otherwise and the 2.5 cm lesion in the RLL is the location of the largest tumor on the right? Or should site be coded to right lung, NOS and size to unknown because there is no clear statement as to which lesion on the right represents the primary tumor? If the site is lung, NOS, would CS Extension be coded to 65 to describe the multiple nodules in the RLL?

This answer was provided in the context of CSv1 coding guidelines. The response may not be used after your registry database has been converted to CSv2.Based on the information provided:

Code primary site C349 [Lung]. Code laterality 1 [Right]. Code CS Tumor Size 999 [Unknown]. Code CS Extension 65 [Separate tumor nodules, same lobe]. Code CS Mets at Dx 39 [Separate tumor nodule in contralateral lung].

 2005
20021179 Primary Site/EOD Fields--Head & Neck: In the absence of an actual resection and a pathologic evaluation of the affected area, would a laryngoscopy or CT scan provide a better assessment of the EOD and the primary site?

For cases diagnosed 1998-2003:

For Primary Site and EOD, CT information has higher priority than laryngoscopy. The CT scan gives a better picture of the involvement of the deeper tissues. A laryngoscopy falls into the "physical exam" category more than the "operative" category. The laryngoscopy report is not an "operative" report like those generated from a surgical procedure.

 2002
20031118 Primary Site/EOD-Extension--Kaposi Sarcoma: How are these fields coded for localized disease described as "Nodal Kaposi Sarcoma" found on inguinal node biopsy only?

Code the site of involvement as the primary site when no other involvement is documented. For the case above, code C774 [inguinal lymph node] as primary site.

For cases diagnosed 1998-2003: Code EOD-extension as 13 [Visceral].

 2003
20031081 Primary Site/EOD-Size of Primary Tumor--Lung: If the only lung mass described in CXR is a "hilar mass," is the primary site coded to C34.9 [Lung, NOS] or C34.0 [Main Bronchus; incl. Carina]? Also, can the size of the hilar mass be used to code the size of tumor field?

Because the only description available is "hilar mass," code primary site as C34.0.

For cases diagnosed 1998-2003: Use size of mass for EOD-Size of Primary Tumor.

 2003
20041055 Primary Site/Grade, Differentiation, Cell indicator--Lymphoma: Will a Grade, Differentiation code of 6 [B-cell] for a lymphoma coded to primary site C80.9 [unknown] fail edits? See Discussion. Patient had a large mass in chest wall that was excised and found to be large B cell lymphoma. Scans mentioned no involvement of lymph nodes but indicated nodules in the liver thought to be lymphoma as well.

For cases diagnosed prior to 1/1/2010:The combination of a primary site C809 with a Grade, Differentiation code of 6 when used for a lymphoma will not fail SEER edits. Avoid coding primary site to C809 when possible. Code primary site for the example above to C761 [Chest wall, NOS]. The chest wall is the only area of involvement, except for "liver nodules." Liver is an unlikely primary site for lymphoma.

For cases diagnosed 2010 forward, refer to the Hematopoietic and Lymphoid Neoplasm Case Reportability and Coding Manual and the Hematopoietic Database (Hematopoietic DB) provided by SEER on its website to research your question. If those resources do not adequately address your issue, submit a new question to SINQ.

 2004
20031089 Primary Site/Histology (Pre-2007)--Bone: How are these fields coded for a squamous cell carcinoma in bone? See Description. The consult path report says "I believe that there is definitely high grade malignant tumor in this amputation specimen, and that this tumor represents an invasive squamous cell carcinoma, which is extending into the bone and permeating in between the bone trabeculae. ... The fact that squamous cell carcinoma can arise from the sinuses of chronic osteomyelitis is well recognized."

For tumors diagnosed prior to 2007:

Based on the information provided, code the primary site as C40._ or C41._ [bone] because the tumor originated in the sinuses of chronic osteomyelitis. Code to the site in which the tumor arises. Override the SEER site/histology edits to allow this rare combination of bone and squamous cell 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
20041063 Primary Site/Histology (Pre-2007)--Mediastinum: How do we code these fields for a case described as a "neuroendocrine carcinoma" of the "anterior mediastinum" without failing the SEER "impossible" site/histology combination edit? See Discussion. Two different facilities state that the patient has "neuroendocrine carcinoma of the anterior mediastinum." This coded combination failed SEER edit (SEERIF38). We can not correct it because that edit flag does not appear on our system. Both facilities indicate that the mediastinum is the primary. In addition, there is text to support both the histology and primary site codes.

For tumors diagnosed prior to 2007:

The combination of C381 [anterior mediastinum] and 8246 [neuroendocrine carcinoma] will be removed from the list of "impossible" site/histology combinations. There are rare cases of neuroendocrine carcinoma of the anterior mediastinum. As illustrated in the discussion, verify that the primary site is anterior mediastinum, the histology is neuroendocrine ca, and document those findings in the text.

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.

 2004
20051058 Primary Site/Histology (Pre-2007)--Rectum: How are rectal biopsies with the histology of "poorly differentiated carcinoma with mixed basaloid and squamous features" coded if, per the SEER site/histology validation table, the histology 8094/3 [basosquamous carcinoma] histology cannot be coded to the rectum for the primary site?

For tumors diagnosed prior to 2007:

Code primary site C209 [rectum] and histology 8094/3 [basosquamous carcinoma]. As of 6/9/2003, this is no longer an impossible site/histology combination.

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.

 2005
20021079 Primary Site/Histology (Pre-2007)/EOD Fields/Surgery of Primary Site--Abdomen, NOS: What codes are used to represent these fields for a case with a resection of the rectosigmoid and adjacent tumor mass that demonstrated no tumor in the rectosigmoid but extramural to the colon there was an endometrioid adenocarcinoma arising in association with an area of endometriosis (possibly within the pericolic soft tissue or in an ovarian remnant)?

For cases diagnosed in 2003, code to:

Primary Site: C76.2 [abdomen, NOS]

Histology: 8380/3 [Endometrioid adenocarcinoma]

EOD size, extension, lymph node: 999, 99, 9 [Unknown]

Surgery of Primary Site: 98 [All unknown and ill-defined disease sites, WITH or WITHOUT surgical treatment]

Scope of Regional LN Surgery: 0 [None]

Surgical Procedure of Other Site: 2 [Non-primary surgical procedure to other regional sites].

 2002