First course treatment/Chemotherapy: Is metronomic chemotherapy coded as chemotherapy?
Code metronomic chemotherapy as chemotherapy. Metronomic chemotherapy, also referred to as low-dose metronomic (LDM) chemotherapy, is an emerging cancer treatment approach which administers relatively low doses of traditional chemotherapy drugs over a long period of time and without ‘breaks’ in treatment. By using lower doses this method of treatment minimizes the side effects of traditional chemotherapy.
Reportability/Histology--Skin: Is 'skin, left temporal scalp, low grade adnexal carcinoma, probable sweat gland origin' reportable as 8400/3, skin of temple?
Assign 8390/3 for adnexal carcinoma of skin. 8390/3 is reportable, including 8390/3 of skin.
Solid Tumor Rules (2018)/Histology--Lung: The Histology coding guidelines for lung cancer state to code histology when stated as type or subtype but not to code when described as pattern. How should the histology be coded (Adeno, NOS or Adeno, Mixed subtypes) if the College of Americal Pathologists Protocol of the pathology report lists the following: Histologic type: Adenocarcinoma, papillary (90%), lepidic (8%), and solid (2%) patterns?
The term/modifier "patterns" is no longer allowed to code a specific histology according to the Lung Solid Tumor H rules. Disregard the papillary, lepidic, and solid patterns and code histology to adenocarcinoma, NOS (8140/3).
Reportability--Bladder: Is "low grade papillary urothelial neoplasm with no evidence of invasion" reportable to SEER?
"Neoplasm" means "new growth," not malignancy. A low grade papillary urothelial NEOPLASM with no evidence of invasion [8130/1] is not reportable to SEER. However, a low grade papillary urothelial CARCINOMA with no evidence of invasion [8130/2] is reportable.
MP/H Rules/Multiple primaries -- Ovary: How many primaries are to be accessioned and what rule applies when a patient has a serous carcinoma of the right ovary treated with neoadjuvant chemotherapy followed by a debulking surgery that revealed a serous tubal intraepithelial carcinoma of the left fallopian tube?
For cases diagnosed 2007 or later, accession two primaries, serous carcinoma of the right ovary and serous tubal intraepithelial carcinoma of the left fallopian tube based on the information provided.
The steps used to arrive at this decision are:
Open the Multiple Primary and Histology Coding Rules Manual. Choose one of the three formats (i.e., flowchart, matrix or text) and go to the Other Sites MP rules because neither the ovary nor fallopian tube have site specific rules developed.
Start at the MULTIPLE TUMORS module, Rule M3. The rules are intended to be reviewed in consecutive order within a module. The patient has multiple tumors with ICD-O-3 topography codes that are different at the third character (Cxx) and therefore this case should be accessioned as a multiple primary.
It could be helpful to know the extent of involvement noted prior to neoadjuvant therapy and debulking surgery. For example, if the patient had widely metastatic disease throughout the entire pelvis prior to the initiation of treatment, the answer may have been different.
EOD-Lymph Nodes--Breast: Are micrometastases in the lymph nodes, found only on immunohistochemical staining, coded as positive lymph nodes?
For cases diagnosed 1998-2003: Do not code as positive lymph nodes that have micrometastases diagnosed ONLY on immunohistochemistry. By traditional diagnostic methods, these are still negative lymph nodes.
Summary Stage and EOD ignore the IHC positive micrometastases for cases diagnosed through 2003. The collaborative staging system that begins with 2004 cases and is based on the sixth edition of TNM addresses this issue.
Reportability--Ovary: Is immature teratoma of the ovary reportable if a subsequent comment states that "the teratoma shows immature neuroepithelium, but no malignant elements"?
There is conflicting information for this case. The final diagnosis conflicts with the comment. Go back and check with the physician to clarify his/her intent. If no further information can be obtained, the final diagnosis is preferred over the comment. This case is reportable based on the final diagnosis: "immature teratoma."
Scope of Regional Lymph Node Surgery: If a named regional lymph node is aspirated should this field be coded to 1 [Regional lymph node removed, NOS], as is stated on page 127 of the SEER Program Code Manual, or should this field be coded to a more specific code when that is available (e.g. Lung primary code 3 [Ipsilateral mediastinal and/or subcarinal nodes])?
For cases diagnosed 1/1/2003 and after: A generic scheme was created for the Scope of Regional Lymph Node Surgery field. As a result, there no longer are codes available that represent specific named lymph node chains. Code aspiration of a lymph node to 1 [Biopsy or aspiration of regional lymph node, NOS].
Diagnostic Confirmation--Testis: How do you code this field when a testicular mass is confirmed to be cancer on physical exam and testicular antigen, but the orchiectomy specimen was negative and yet the final signout diagnosis on the medical record was "testicular cancer"?
Code the Diagnostic Confirmation field to 5 [Positive laboratory test/marker study] because the disease was confirmed both clinically and by a positive marker. Code 8 [Clinical diagnosis only] is used when the diagnosis is based on information other than that coded in 5, 6, or 7 [positive lab test/marker study, visualization, and radiography or other imaging techniques]. Code 8 is rarely used.