EOD Fields--All Sites: Is EOD information limited to what is available exactly two months from the day of diagnosis?
For cases diagnosed 1998-2003:
EOD should include all information available within four months of diagnosis in the absence of disease progression or through completion of surgery(ies) in first course of treatment, whichever is longer.
Mets known to have developed after EOD was established should be excluded.
Multiple Primaries (Pre-2007)--Breast: When a breast cancer is treated with less than a total mastectomy and more than 2 months later a tumor of the same histology is diagnosed in the same breast with no statement of "recurrence," is this a new primary?
For tumors diagnosed prior to 2007:
Count as 2 primaries when a subsequent malignant breast tumor is diagnosed more than 2 months later unless stated to be a recurrence. For cases diagnosed after 1/1/94, an in situ followed by an invasive breast cancer is counted as two primaries even if stated to be a recurrence.
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.
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.
Grade, Differentiation: Are anaplastic tumors always coded to grade 4, even for anaplastic brain primaries?
Yes. Always code the Grade, Differentiation field to for 4 [Grade IV] for "anaplastic" tumors. Anaplastic is synonymous with undifferentiated. Refer to the example in the SEER Program Code Manual, 3rd Ed.
EOD-Extension--Stomach: What code is used to represent this field for a stomach primary described as linitis plastica?
For cases diagnosed 1998-2003:
Code the EOD-Extension field to 30 [Localized, NOS], unless more information is known about the extent of tumor involvement. Coding the Histology field to 8142/3 [Linitis plastica] and the Size of Primary Tumor field to 998 [Diffuse; widespread; 3/4 or more: Linitis plastica] identifies this diagnosis.
In the EOD-Extension field, the depth of invasion is the important characteristic to be coded. The 10 digit EOD corresponds to the AJCC Staging Manual in which the "T" is based on level of invasion. While a diagnosis of linitis plastica indicates a worse prognosis, it does not define the extent of infiltration. There is no luminal mass with linitis plastica. Instead, the entire gastric wall is thickened by tumor.
EOD-Pathologic Extension--Prostate: If there is residual tumor in the distal urethra on prostatectomy, does that mean there is distal urethral margin involvement? See discussion.
2/98 Prostate bx: Right apex, right mid and right base positive for adenocarcinoma.
6/1/98 Radical retropubic prostatectomy w/ bilateral pelvic lymph node dissection. Pathology: Residual adenocarcinoma in distal urethra, right lateral sections and posterior lobe. Right apical margin, other margins, seminal vesicles, and 7 pelvic LN negative for malignancy.
For cases diagnosed 1998-2003:
For the example above, code the EOD-Pathologic Extension field to 34 [extending to apex] because most of the right side is involved.
The pathology report says all margins are free. The comment on residual tumor in the urethra, meant the first surgery did not completely remove tumor tissue from the urethra, it does not mean that tissue is at the margin.
Surgery of Primary Site--Lung: What code is used to represent "photodynamic therapy" (PDT) for lung primaries? See Discussion.
PDT is not listed in the Surgery to Primary Site field codes for lung.
For cases diagnosed 2003 and later, code the Surgery of Primary Site field to 19 [Local destruction or excision, NOS] for lung primaries. Photodynamic therapy is a surgical procedure that results in the local destruction of tumor.
Primary Site: What site code is used to classify a femur biopsy with pathologic diagnosis of "Ewing sarcoma/primitive neuroectodermal tumor (PNET)"? See discussion.
ICD-O-3 lists PNET as being site specific to C71._. The pathology report states "some authors consider both Ewing sarcoma and PNET to be the same histologic entity given that they share the same translocation between chromosomes 11 and 23."
Code the Primary Site field to C40.2 [femur] based on Rule H in the ICD-O-3 that states, "Use the topography code provided when a topographic site is not listed in the diagnosis. This topography code should be disregarded if the tumor is known to arise at another site."
An official website of the United States government
Home