EOD-Pathologic Review of Number of Regional Lymph Nodes Positive and Examined: Should a lymph node biopsy be counted in these fields or are these fields for lymph node dissections only? See discussion.
These fields record the number of regional lymph nodes examined pathologically whether from a biopsy or from a dissection. If the single lymph node biopsied was a regional lymph node, code the Number of Regional Lymph Nodes Positive field to 05 and the Number of Regional Lymph Nodes Examined field to 16. If the lymph node biopsied was a distant node, code these fields to 04 and 15 respectively.
Place of Birth: When there is conflicting information, which record takes precedence in coding this field, the medical record or the death certificate?
If there is a discrepancy, use the information from the medical record to code the Place of Birth field. The information from the medical record is provided by the patient, the information on the death certificate is provided by others. If the medical record does not contain birth information, use the information from the death certificate.
EOD-Lymph Nodes--Lung: What code is used to represent this field when the only information is a description of:
1. "hilar mass"
2. "mediastinal mass"
3. "enlarged" or "greater than 1 cm" used to describe any of the lymph nodes listed under code 2 in the EOD Lymph Nodes field?
For cases diagnosed 1998-2003:
Code EOD-Lymph Nodes fields as follows for the examples given:
1) 9 [Unknown; not stated] for a "hilar mass"
2) 2 [Mediastinal] for a "mediastinal mass"
3) 2 [Mediastinal] for "enlarged" or "greater than 1 cm," if used to describe any of the named lymph nodes listed under code 2 in the EOD-Lymph Nodes field.
Radiation: Is "consolidated" radiation therapy coded as part of first course therapy when there is no documentation of "planned treatment" and the radiation is done 4 months after the initiation of treatment?
Yes, "consolidation" treatment is part of a planned treatment regimen. A treatment regimen may consist of the four following phases:
Other Therapy: What code is used to represent "gene" therapy? See discussion.
The following form of gene therapy has been described as treatment for malignant brain tumors.
Patients undergo surgery to remove as much of the tumor as possible. After surgery, the patients are infused with a virus that has been genetically altered so that it is not infectious and so that it contains a gene from the herpes simplex virus. The herpes gene is sensitive to a drug called ganciclovir. Once inside the brain, the genetically altered virus infects any remaining tumor cells. When this occurs, the herpes gene is established inside the cancer cells. After the virus infects the cancer cells, the patients are given ganciclovir. This drug would kill both the virus and the brain tumor cells.
Code the Other Cancer-Directed Therapy field to 2 [Other experimental cancer-directed therapy (not included elsewhere)].
Primary Site--Esophagus: What is the difference between C15.5 [Lower third of esophagus] and C15.2 [Abdominal esophagus]?
These descriptions represent the use of two different ways the esophagus can be divided anatomically. The two different systems used are illustrated in the SEER Self Instruction Manual for Tumor Registrars: Book 4. Assign the primary site code that describes the location of the tumor in the same way the tumor's location is described in the medical record.
EOD-Pathologic Extension--Prostate: Is extracapsular extension implied by the following phrases: "case staged as C" and "case staged as T3a"? See discussion.
Example: A prostatectomy was done on 6/29. The physician staged the case as a "C" on 7/2 and as T3a on 8/6. It appears the physician is interpreting the following pathology information as unilateral extracapsular extension: "The tumor on the right extends to the inked surface of the gland. In this area the capsule appears absent." Should pathologic extension be coded to unilateral extracapsular extension [42]?
For cases diagnosed 1998-2003:
Yes. Use the best information available to stage this case. In this case, the best information is the physician's statement that the case is stage T3a. Without any additional information, the EOD-Extension field is coded to 42 [Unilateral extracapsular extension (pT3a)] on the basis of the T3a stage by the MD. When there is a conflict between different staging systems, default to the AJCC stage.
Histology (Pre-2007): What code is used to represent the histology "non-small cell carcinoma, NOS"? See discussion.
Should a non-small cell carcinoma histology be assumed to be a large cell carcinoma [8031/3] or should the histology be coded to carcinoma, NOS [8010/3]?
For tumor diagnosed 2001-2006: Code the Histology field to 8046/3 [non-small 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.
Primary Site: What code should be used to represent the site for an "extraovarian" papillary serous adenocarcinoma located in the "rectal muscle sheath"? See discussion.
The location of the tumor in the rectus muscle sheath is unusual and suggests an origin within a preexisting mullerian.
Code the Primary Site field to C49.4 [connective, subcutaneous and other soft tissues of the abdomen].
EOD-Extension--Ovary: What code is used to represent this field for an ovarian primary presenting with "spread to the omentum"?
For cases diagnosed 1998-2003:
Code the EOD-Extension field to 75 [Peritoneal implants, NOS] because the size of the implants on the omentum is not known.
Note 6 was added to the EOD scheme which states that both direct extension and discontinuous metastasis to the omentum are coded in the range 70-75 depending on how the peritoneal implants are described.