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Report Produced: 01/02/2026 01:11 AM

Report Question ID Question Discussion Answer Year
20081047 Reason no surgery of primary site/First course treatment: If the Reason no Surgery of Primary Site field is coded as 7 (refused), must the other treatment options (radiation, chemo, hormone) also be coded as 7? See Discussion. Coding instruction #5 in the SEER manual states: "Assign code 7 (refused) if the patient refused recommended surgery or made a blanket statement that he/she refused all treatment."

Refused [code 7] means this modality was specifically recommended by the physician and the patient refused. If two treatment alternatives were offered and surgery was refused, code Reason no surgery of primary site 1 [Surgery of the primary site was not performed because it was not part of the planned first-course treatment].

Refusal of surgery does not necessarily mean that all treatment was refused. Coding Surgery of Primary Site as "refused" does not affect the coding of Radiation, Chemotherapy, Hormone Therapy, etc.

 2008
20081099 MPH Rules/Behavior--Breast: Would a positive right axillary node following DCIS of the right breast indicate the presence of a new primary? See Discussion. How would you abstract the information from 2007? A patient with a strong family history of breast cancer had bilateral simple mastectomies in 2000, after a suspicious mammogram. Results showed DCIS in the rt breast; no malignancy in the left breast. Now in 2007, the patient has a right axillary lymph node removed - positive for carcinoma of breast origin. Comment says, "recurrent breast carcinoma in rt axillary node from patient's known history of DCIS." Is this a new primary? Is this a diagnosis date in 2007? Is the site C509 and laterality right side?

For cases diagnosed 2007 or later:

A metastasis was diagnosed in 2007. The 2007 MP/H rules do not apply to metastases.

Change the behavior code of the 2000 diagnosis. The breast cancer diagnosed in 2000 must have been invasive based on the metastasis in 2007.

 2008
20081031

MP/H Rules--Breast: How many primaries are abstracted if a mastectomy specimen reveals two separate invasive tumors:

#1: Invasive apocrine carcinoma, poorly differentiated, 1.2cm, (9 o'clock). -Apocrine ductal carcinoma in situ (DCIS), high-grade with comedo necrosis; 2.0cm (9:30 o'clock).

#2: Invasive ductal carcinoma, well-differentiated, 1.0cm (12:30 o'clock). -Minor component of DCIS, low-grade? See Discussion.

 In the MP/H Rules, Table 1 lists apocrine as a type of intraductal carcinoma. Apocrine does not appear in Table 2, the list of specific duct carcinomas. If Apocrine is a type of ductal carcinoma, then Rule M11 would make this a single primary. If it is a single primary, what is the histology?

For cases diagnosed 2007 or later:

Using rule M11, there is one primary in the left breast. Apocrine is a specific duct carcinoma. To make this more clear, apocrine will be added to Table 2 in a future revision.

To code the histology, go to the multiple tumors module and start with rule H20. Stop at rule H29 and code the histology with the numerically higher ICD-O-3 code, 8500/3.

 2008
20081136 CS Extension--Corpus uteri: Can a suspicious cytology be used to code extension? See Discussion.

Endometrial primary confirmed by biopsy on 10/26/06. Pelvic washing on 11/14/06 was 'suspicious for malignancy.' Resection path the same day stated the primary tumor invades the inner 1/3 of the myometrium.

Can we use the pelvic washing cytology & code CS extension 61 or should CS extension be coded 12?

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.Assign extension code 61 [cancer cells in peritoneal washings] for the case described above.

"Suspicious" is listed as a term indicating involvement. There is no exception noted for cytology reports. See page 122 of the 2007 SEER manual.

 2008
20081131 MP/H Rules--Colon: What histology would you assign to a single tumor with the histology 'well differentiated mucinous cystadenocarcinoma in a villous adenoma confined to the appendix'? Does rule H4 apply to this diagnosis or should we continue on in the rules to H14 and code the higher histology?

For cases diagnosed 2007 or later, use rule H4.

Stop at the first rule that applies to the case. Rule H4 is the first rule that applies.

The polyp rule, H4, comes before many of the other colon rules because it is important to know that the malignancy originated in a polyp.

 2008
20081071 CS Site Specific Factor 6--Breast: Should we assume that the invasive portion of the tumor is being referred to when a pathologist provides only a single tumor size but includes both invasive and in situ descriptors when discussing the size of that tumor? See Discussion.

There seems to be subtle variations in wording and punctuation in these cases. Would these three examples be coded the same way?

Examples:

  • "invasive ductal carcinoma 2.0 cm, DCIS present"

  • "2 cm invasive ductal carcinoma with DCIS present"

  • "invasive ductal carcinoma 2.0 cm. DCIS present"

    • 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.Code SSF6 050 [invasive and insitu components present, entire size coded in CS TS, size of invasive not stated, proportion invasive and insitu not known] when the size of the invasive portion is not provided and clarification is not available.

    If possible, obtain clarification from the pathologist for phrases like these and document in a text field. For example, a pathologist may confirm that when he/she states "invasive ductal carcinoma 2.0 cm, DCIS present" the size of the invasive portion is 2 cm. If so, code CS tumor size 020 and SSF6 020 and explain in a text field.

    		 2008
    		20081036 MP/H Rules--Breast: Is inflammatory breast cancer always one primary per lifetime? Or is a subsequent inflammatory breast cancer a second primary if diagnosed more than five years later? For cases diagnosed 2007 or later, a diagnosis of inflammatory breast cancer more than five years after a previous diagnosis of inflammatory breast cancer is a separate (new) primary. See rule M5 in the Breast Multiple Primary Rules. 2008
    		20081065 Surgery of Primary Site--Melanoma: Which surgery codes should be used for cases that have a 1 cm margin? See Discussion. For a melanoma case the surgery codes in the 30's are to be used when margins are stated to be less than 1 cm. The codes in the 40's are to be used for cases where the margins are greater than 1 cm. If the margin is exactly 1 cm, assign a surgery code from the 20-36 range. Use a code in the 40's only when the margin is greater than 1 cm. 2008
    		20081066 Multiplicity Counter/Type of Multiple Tumors--Breast: How should these fields be coded when path shows a 1.2 cm infiltrating carcinoma with lobular features and several foci of infiltrating lobular carcinoma [7 foci described as multifocal], 1 large focus, and numerous foci of LCIS and CIS with lobular and ductal features? Should we count the foci or separate tumor nodules, ignore them, or code unknown values for these fields? See Discussion.

    Scenario: 10/17/07: Right axilla soft tissue bx - infiltrating mammary ca with lobular features arising within apparent breast tissue present within axilla. Tumor size 1.2 cm. 11/3/07: Right breast, reexcision lumpectomy - Several foci of infiltrating lobular CA. (2) foci & (5) foci within specimen (multifocal). (1) large focus also present. No lymphovascular invasion identified. Numerous foci LCIS. Pleomorphic LCIS & CIS with lobular and ductal features. Margins free of invasion however margins diffusely involved with LCIS.

    When do you count foci or separate tumor nodules, when do you ignore them, and when do you code unknown values for these fields? Coding instruction 3b states, "When the tumor is multifocal or multicentric and the foci of tumor are not measured, code as 99." Instruction 4b states, "Use code 01 when there is a single tumor with separate foci of tumor." Finally, instruction 6b states, "Use code 99 when the tumor is described as multifocal or multicentric and the number of tumors is not given," which seems to imply that if we know the number of tumors, we would code that number.

    Multiplicity Counter: Use instruction 4b. Since there is one measured tumor and the foci were not measured, code the multiplicity counter 01 [One tumor only].

    Type of Multiple Tumors: Code Type of multiple tumors 00 [Single tumor].

    		 2008
    		20081064

    MP/H Rules--Bladder: Is a TURBT in 4/07 that demonstrates papillary carcinoma (8130/3) followed two weeks later with biopsies that demonstrate high grade flat dysplasia/carcinoma in situ (8010/2) two primaries?

    For cases diagnosed 2007 or later, rule M6 applies and this is a single primary.

    Flat transitional cell carcinoma and carcinoma in situ of the bladder are synonymous. See the definition of "Flat Tumor (bladder)/Noninvasive flat TCC" in the Urinary Terms and Definitions section of the 2007 MP/H manual.

    		 2008