1 MP/H Coding Rules General Instructions MP/H Task Force Multiple Primary Rules Histology Coding...
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Transcript of 1 MP/H Coding Rules General Instructions MP/H Task Force Multiple Primary Rules Histology Coding...
![Page 1: 1 MP/H Coding Rules General Instructions MP/H Task Force Multiple Primary Rules Histology Coding Rules 2007.](https://reader034.fdocuments.us/reader034/viewer/2022042822/56649e375503460f94b28140/html5/thumbnails/1.jpg)
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MP/H Coding Rules General Instructions
MP/H Task Force
Multiple Primary Rules
Histology Coding Rules
2007
![Page 2: 1 MP/H Coding Rules General Instructions MP/H Task Force Multiple Primary Rules Histology Coding Rules 2007.](https://reader034.fdocuments.us/reader034/viewer/2022042822/56649e375503460f94b28140/html5/thumbnails/2.jpg)
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MP/H Instructions
• Apply to all rules unless otherwise noted
• Equivalent Terms
• Definitions
• General information– These instructions are to be used with all new
rules– They are not repeated in the site-specific
rules
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MP/H Instructions
• Instructions include:– How to use the rules– Priority order for use of documents– Ambiguous terms for coding histology
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Equivalent or Equal Terms
MP/H Task Force
Multiple Primary Rules
Histology Coding Rules
2007
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Equivalent or Equal Terms
• Equivalent or Equal Terms for MP Instructions apply to all site-specific rules unless otherwise noted.
• Each site-specific section will also include a set of site-specific equivalent or equal terms for that site only.
• For the purposes of these rules, these terms are equivalent:
– Multicentric, multifocal– Tumor, mass, lesion, neoplasm
• These terms are interchangeable for all rule sets, unless otherwise noted.
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There are a number of definitions, but we’d like to bring your attention to
a few in particular.
MP/H Task Force
Multiple Primary Rules
Histology Coding Rules
2007
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Definitions
• Focal: An adjective meaning limited to one specific area. A focal cancer is limited to one specific area or organ. The area may be microscopic or macroscopic.
• Foci: Plural of focus.– Also remember that multifocal and
multicentric are equivalent terms for the purposes of the new rules.
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Definitions
• Focus: A term used by pathologists to describe a group of cells that can be seen only by a microscope. The cells are noticeably different from the surrounding tissue either by their appearance, chemical stain, or other testing.
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Definitions
• Most representative specimen: The pathologic specimen from the surgical procedure that removed the most tumor tissue.
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Definitions
Recurrence has two meanings:
1. The reappearance of disease that was thought to be cured or inactive (in remission). Recurrent cancer starts from cancer cells that were not removed or destroyed by the original therapy.
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Definitions
2. A new occurrence of cancer arising from cells that have nothing to do with the earlier (first) cancer. A new or another occurrence, incidence, episode, or report of the same disease (cancer) in a general sense – a new occurrence of cancer.
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Determining Multiple Primaries
MP/H Task Force
Multiple Primary Rules
Histology Coding Rules
2007
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General Information
• Use these rules to determine the number of reportable primaries for solid malignant tumors. (That is: how many case abstracts do you have to complete for each person?)
• Do not use rules to determine if a case is reportable, to stage or to assign grade.
• 2007 rules replace all previous rules!
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General Information
• Three formats: flowchart, text, and matrix. The rules are identical, only the formats differ.
• Notes and examples highlight key points or add clarity to rules.
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General Information
• Do not use a physician’s statement to decide whether the patient has a recurrence of a previous cancer or a new primary.
– Use the RULES to determine if the patient has a new primary or if this is recurrence of a previous cancer.
– The only exception exists when a pathologist compares the present tumor to the “original” tumor and states that this tumor is a recurrence of cancer from the previous primary.
• Reportable solid malignant tumors only
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Lymphoma and Leukemia
• Use the Determining Multiple Primaries: Hematopoietic Primaries (Lymphoma and Leukemia) rules
• Use the table “Definitions of Single and Subsequent Primaries for Hematologic Malignancies”
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How to Use the MP Rules
• Use the site-specific rules for:– Brain, malignant (intracranial and CNS)– Breast– Colon– Head and neck
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How to Use the MP Rules
• Use the site-specific rules for:– Kidney– Lung– Malignant melanoma of the skin– Renal pelvis, ureter, bladder, and other
urinary
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How to Use the MP Rules
• Use the Other Sites rules for solid malignant tumors that occur in primary sites not covered by the site-specific rules.
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How to Use the MP Rules
• Each module is an independent, complete set of coding rules.
• Use the primary site documented by the physician on the medical record
• Do not count metastatic lesions
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How to Use the MP Rules
• Multicentric or multifocal, if the number of tumors is unknown, use the “Unknown if Single or Multiple Tumors” module
• Single tumor, use the “Single Tumor” module.
• Multiple tumors, use the “Multiple Tumor” module.
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How to Use the MP Rules
• Separate microscopic foci, ignore the separate microscopic foci and use the “SingleTumor” or “Multiple Tumor” modules as appropriate
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How to Use the MP Rules
• Rules are in hierarchical order
• Use the first rule that applies and STOP
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How to Use the MP Rules
• Single primary, prepare one abstract
• Multiple primaries, prepare two or more abstracts
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Histologic Type ICD-O-3
MP/H Task Force
Multiple Primary Rules
Histology Coding Rules
2007
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General Information
• Histology describes the microscopic composition of cells and/or tissue for a specific primary.
– Basis for staging – Basis for determining treatment options– Prognosis and disease course
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General Information
• International Classification of Diseases for Oncology, Third Edition (ICD-O-3) is the standard reference for histology codes
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How to Use the Histology Rules
• Use the format easiest for you to follow
• Notes and examples highlight key points or add clarity
• Rules are in hierarchical order within each section
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How to Use the Histology Rules
• Read General Instructions.
• Read Equivalent Terms and Definitions.
• Follow the rules to make a decision on coding the histology
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How to Use the Histology Rules
• Rules are in hierarchical order
• Use the first rule that applies and STOP
![Page 31: 1 MP/H Coding Rules General Instructions MP/H Task Force Multiple Primary Rules Histology Coding Rules 2007.](https://reader034.fdocuments.us/reader034/viewer/2022042822/56649e375503460f94b28140/html5/thumbnails/31.jpg)
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Priority Order for Documents
MP/H Task Force
Multiple Primary Rules
Histology Coding Rules
2007
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Priority Order for Using Documents
1. Pathology report:a. From most representative specimenb. From final diagnosis
Note 1: Use information from addenda and comments associated with the final diagnosis
Note 2: A revised/amended diagnosis replaces the original final diagnosis.
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Priority Order for Using Documents
1. Pathology report (continued)
Note 3: New rules limit information to the final diagnosis.
Only use information from the microscopic portion of the pathology report when instructed to do so in the site-specific rules.
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Priority Order for Using Documents
2. Cytology report
3. No pathology or cytology report:a. References to pathology or cytology findings
b. Other mention of type of cancer (histology) in
the medical record
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Ambiguous Terms for Histology
MP/H Task Force
Multiple Primary Rules
Histology Coding Rules
2007
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Ambiguous Terms Used to Code Histology
– Apparent(ly)– Appears– Comparable with– Compatible with– Consistent with– Favor(s)
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Ambiguous Terms Used to Code Histology
– Most likely– Presumed– Probable– Suspect(ed)– Suspicious (for)– Typical (of)
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MP/H Task Force