Solid Tumor rules 2026 update (#152)

Author: bekeles

CHANGELOG.md

@@ -1,5 +1,9 @@
 ## Multiple Primary and Histology Coding Rules Version History
 
+**Changes in version 1.42**
+
+- Implemented 2026 updates of solid tumor rules. (#152)
+
 **Changes in version 1.41**
 
 - Changed back minimum Java language from Java 11 to Java 8.

src/main/java/com/imsweb/mph/MphConstants.java

@@ -72,7 +72,7 @@ public TempRuleResult apply(MphInput i1, MphInput i2, RuleExecutionContext conte
         rule.getNotes().add("This rule does not apply to a single overlapping malignancy of colon and rectum.");
         _rules.add(rule);
 
-        // Rule M5 Abstract multiple primaries when separate/non-contiguous tumors are two or more different subtypes/variants in Column 3, Table 1 in the Equivalent Terms and Definitions. Timing is irrelevant.
+        // Rule M5 Abstract multiple primaries when separate/non-contiguous tumors are two or more different subtypes/variants in Column 2, Table 1 in the Site-group Instructions. Timing is irrelevant.
         rule = new MphRule(MphConstants.SOLID_TUMOR_2018_COLON, "M5") {
             @Override
             public TempRuleResult apply(MphInput i1, MphInput i2, RuleExecutionContext context) {
@@ -88,19 +88,19 @@ public TempRuleResult apply(MphInput i1, MphInput i2, RuleExecutionContext conte
                 return result;
             }
         };
-        rule.setQuestion("Are separate/non-contiguous tumors two or more different subtypes/variants in Column 3, Table 1 in the Equivalent Terms and Definitions?");
-        rule.setReason("Separate/non-contiguous tumors that are two or more different subtypes/variants in Column 3, Table 1 in the Equivalent Terms and Definitions are multiple primaries.");
+        rule.setQuestion("Are separate/non-contiguous tumors two or more different subtypes/variants in Column 2, Table 1 in the Site-group Instructions?");
+        rule.setReason("Separate/non-contiguous tumors that are two or more different subtypes/variants in Column 2, Table 1 in the Site-group Instructions are multiple primaries.");
         rule.getNotes().add("The tumors may be subtypes/variants of the same or different NOS histologies.");
         rule.getNotes().add(
                 "  - Same NOS: Medullary carcinoma NOS 8510/3 and tubulopapillary adenocarcinoma 8263/3 are both subtypes of adenocarcinoma NOS 8140/3 but are distinctly different histologies. Abstract multiple primaries.");
         rule.getNotes().add(
                 "  - Different NOS: Goblet cell carcinoid 8243/3 is a subtype of mixed adenoneuroendocrine carcinoma 8244/3; somatostatin-producing NET 8156/3 is a subtype of neuroendocrine tumor Grade 1 (G1) 8240/3. They are distinctly different histologies. Abstract multiple primaries.");
         _rules.add(rule);
 
-        // Rule M6 Abstract multiple primaries when separate/non-contiguous tumors are on different rows in Table 1 in the Equivalent Terms and Definitions. Timing is irrelevant.
+        // Rule M6 Abstract multiple primaries when separate/non-contiguous tumors are on different rows in Table 1 in the Site-group Instructions. Timing is irrelevant.
         rule = new MpRuleDifferentRowInTable(MphConstants.SOLID_TUMOR_2018_COLON, "M6", MphConstants.COLON_2018_TABLE1_ROWS);
-        rule.setQuestion("Are separate/non-contiguous tumors on different rows in Table 1 in the Equivalent Terms and Definitions?");
-        rule.setReason("Separate/non-contiguous tumors that are on different rows in Table 1 in the Equivalent Terms and Definitions are multiple primaries.");
+        rule.setQuestion("Are separate/non-contiguous tumors on different rows in Table 1 in the Site-group Instructions?");
+        rule.setReason("Separate/non-contiguous tumors that are on different rows in Table 1 in the Site-group Instructions are multiple primaries.");
         rule.getNotes().add("Each row in the table is a distinctly different histology.");
         _rules.add(rule);
 
@@ -215,10 +215,10 @@ else if (!i1.getPrimarySite().equals(i2.getPrimarySite()))
                 "The physician may state this is a recurrence, meaning the patient had a previous colon tumor and now has another colon tumor. Follow the rules; do not attempt to interpret the physician’s statement.");
         _rules.add(rule);
 
-        // Rule M11 Abstract a single primary when synchronous, separate/non-contiguous tumors are on the same row in Table 1 in the Equivalent Terms and Definitions.
+        // Rule M11 Abstract a single primary when synchronous, separate/non-contiguous tumors are on the same row in Table 1 in the Site-group Instructions.
         rule = new MpRuleSameRowInTable(MphConstants.SOLID_TUMOR_2018_COLON, "M11", MphConstants.COLON_2018_TABLE1_ROWS, true);
-        rule.setQuestion("Are synchronous, separate/non-contiguous tumors on the same in Table 1 in the Equivalent Terms and Definitions?");
-        rule.setReason("Synchronous, separate/non-contiguous tumors that are on the same row in Table 1 in the Equivalent Terms and Definitions are a single primary.");
+        rule.setQuestion("Are synchronous, separate/non-contiguous tumors on the same in Table 1 in the Site-group Instructions?");
+        rule.setReason("Synchronous, separate/non-contiguous tumors that are on the same row in Table 1 in the Site-group Instructions are a single primary.");
         rule.getNotes().add("The same row means the tumors are:");
         rule.getNotes().add("  - The same histology (same four-digit ICD-O code) OR");
         rule.getNotes().add("  - One is the preferred term (column 1) and the other is a synonym for the preferred term (column 2) OR");
@@ -230,7 +230,7 @@ else if (!i1.getPrimarySite().equals(i2.getPrimarySite()))
         // Rule M12 Abstract a single primary (the invasive) when an in situ tumor is diagnosed after an invasive tumor.
         rule = new MpRuleInsituAfterInvasive(MphConstants.SOLID_TUMOR_2018_COLON, "M12");
         rule.getNotes().add("The rules are hierarchical. Only use this rule when none of the previous rules apply.");
-        rule.getNotes().add("The tumors may be a NOS and a subtype/variant of that NOS. See Table 1 in the Equivalent Terms and Definitions for listings of NOS and subtype/variants.");
+        rule.getNotes().add("The tumors may be a NOS and a subtype/variant of that NOS. See Table 1 in the Site-group Instructions for listings of NOS and subtype/variants.");
         rule.getNotes().add("The in situ is recorded as a recurrence for those registrars who collect recurrence data.");
         _rules.add(rule);
 

src/main/java/com/imsweb/mph/mpgroups/Mp2018BreastGroup.java

@@ -148,7 +148,7 @@ else if (GroupUtility.areOppositeSides(i1.getLaterality(), i2.getLaterality()))
                 "The physician may state this is a recurrence, meaning the patient had a previous head and neck tumor and now has another head and neck tumor. Follow the rules; do not attempt to interpret the physician’s statement.");
         _rules.add(rule);
 
-        // Rule M7 Abstract multiple primaries when separate, non-contiguous tumors are two or more different subtypes/variants in Column 3 of the appropriate site table (Tables 1-9) in the Equivalent Terms and Definitions. Timing is irrelevant.
+        // Rule M7 Abstract multiple primaries when separate, non-contiguous tumors are two or more different subtypes/variants in Column 2 of the appropriate site table (Tables 1-9) in the Site-group Instructions. Timing is irrelevant.
         rule = new MphRule(MphConstants.SOLID_TUMOR_2018_HEAD_AND_NECK, "M7") {
             @Override
             public TempRuleResult apply(MphInput i1, MphInput i2, RuleExecutionContext context) {
@@ -206,17 +206,17 @@ else if (!map1.equals(map2))
             }
         };
         rule.setQuestion(
-                "Are separate, non-contiguous tumors different subtypes/variants in Column 3 of the appropriate site table (Tables 1-9) in the Equivalent Terms and Definitions?");
+                "Are separate, non-contiguous tumors different subtypes/variants in Column 2 of the appropriate site table (Tables 1-9) in the Site-group Instructions?");
         rule.setReason(
-                "Separate, non-contiguous tumors are different subtypes/variants in Column 3 of the appropriate site table (Tables 1-9) in the Equivalent Terms and Definitions are multiple primaries.");
+                "Separate, non-contiguous tumors are different subtypes/variants in Column 2 of the appropriate site table (Tables 1-9) in the Site-group Instructions are multiple primaries.");
         rule.getNotes().add("The tumors may be subtypes/variants of the same or different NOS histologies.");
         rule.getNotes().add(
                 "  - Same NOS: Alveolar rhabdomyosarcoma 8920/3 and embryonal rhabdomyosarcoma 8910/3 are both subtypes of rhabdomyosarcoma 8900/3 but are distinctly different histologies. Abstract multiple primaries.");
         rule.getNotes().add(
                 "  - Different NOS: Colloid-type adenocarcinoma 8144 is a subtype of adenocarcinoma NOS 8140; Sarcomatoid carcinoma 8074 is a subtype of squamous cell carcinoma 8070. They are distinctly different histologies. Abstract multiple primaries.");
         _rules.add(rule);
 
-        // Rule M8 Abstract multiple primaries when separate, non-contiguous tumors are on different rows in the appropriate site table (Tables 1-9) in the Equivalent Terms and Definitions. Timing is irrelevant.
+        // Rule M8 Abstract multiple primaries when separate, non-contiguous tumors are on different rows in the appropriate site table (Tables 1-9) in the Site-group Instructions. Timing is irrelevant.
         rule = new MphRule(MphConstants.SOLID_TUMOR_2018_HEAD_AND_NECK, "M8") {
             @Override
             public TempRuleResult apply(MphInput i1, MphInput i2, RuleExecutionContext context) {
@@ -245,15 +245,15 @@ public TempRuleResult apply(MphInput i1, MphInput i2, RuleExecutionContext conte
                 return result;
             }
         };
-        rule.setQuestion("Are separate, non-contiguous tumors on different rows in the appropriate site table (Tables 1-9) in the Equivalent Terms and Definitions?");
-        rule.setReason("Separate, non-contiguous tumors on different rows in the appropriate site table (Tables 1-9) in the Equivalent Terms and Definitions are multiple primaries.");
+        rule.setQuestion("Are separate, non-contiguous tumors on different rows in the appropriate site table (Tables 1-9) in the Site-group Instructions?");
+        rule.setReason("Separate, non-contiguous tumors on different rows in the appropriate site table (Tables 1-9) in the Site-group Instructions are multiple primaries.");
         rule.getNotes().add("Each row in the table is a distinctly different histology.");
         _rules.add(rule);
 
         // Rule M9 Abstract a single primary (the invasive) when an in situ tumor is diagnosed after an invasive tumor in the same primary site.
         rule = new MpRuleInsituAfterInvasive(MphConstants.SOLID_TUMOR_2018_HEAD_AND_NECK, "M9");
         rule.getNotes().add(HIERARCHICAL_RULES);
-        rule.getNotes().add("The tumors may be a NOS and a subtype/variant of that NOS. See Tables 1-9 in the Equivalent Terms and Definitions for listings of NOS and subtype/variants.");
+        rule.getNotes().add("The tumors may be a NOS and a subtype/variant of that NOS. See Tables 1-9 in the Site-group Instructions for listings of NOS and subtype/variants.");
         rule.getNotes().add("The in situ is recorded as a recurrence for those registrars who collect recurrence data.");
         _rules.add(rule);
 
@@ -277,7 +277,7 @@ public TempRuleResult apply(MphInput i1, MphInput i2, RuleExecutionContext conte
                 "This rule is based on long-term epidemiologic studies of recurrence intervals. The specialty medical experts (SMEs) reviewed and approved these rules.  Many of the SMEs were also authors, co-authors, or editors of the AJCC Staging Manual.");
         _rules.add(rule);
 
-        // Rule M12 Abstract a single primary when separate/non-contiguous tumors in the same primary site are on the same row in the appropriate site table (Tables 1-9) in the Equivalent Terms and Definitions. Timing is irrelevant.
+        // Rule M12 Abstract a single primary when separate/non-contiguous tumors in the same primary site are on the same row in the appropriate site table (Tables 1-9) in the Site-group Instructions. Timing is irrelevant.
         rule = new MphRule(MphConstants.SOLID_TUMOR_2018_HEAD_AND_NECK, "M12") {
             @Override
             public TempRuleResult apply(MphInput i1, MphInput i2, RuleExecutionContext context) {
@@ -309,9 +309,9 @@ else if (row1.contains(row2) || row2.contains(row1))
                 return result;
             }
         };
-        rule.setQuestion("Are separate, non-contiguous tumors in the same primary site and on the same row in the appropriate site table (Tables 1-9) in the Equivalent Terms and Definitions?");
+        rule.setQuestion("Are separate, non-contiguous tumors in the same primary site and on the same row in the appropriate site table (Tables 1-9) in the Site-group Instructions?");
         rule.setReason(
-                "Separate, non-contiguous tumors in the same primary site and on the same row in the appropriate site table (Tables 1-9) in the Equivalent Terms and Definitions are a single primary.");
+                "Separate, non-contiguous tumors in the same primary site and on the same row in the appropriate site table (Tables 1-9) in the Site-group Instructions are a single primary.");
         rule.getNotes().add("The same row means the tumors are:");
         rule.getNotes().add("  - The same histology (same four-digit ICD-O code) OR");
         rule.getNotes().add("  - One is the preferred term (column 1) and the other is a synonym for the preferred term (column 2) OR");