diff --git a/genedescriptions/config_parser.py b/genedescriptions/config_parser.py
index ef2be67..7f8d304 100644
--- a/genedescriptions/config_parser.py
+++ b/genedescriptions/config_parser.py
@@ -26,6 +26,7 @@ class ConfigModuleProperty(Enum):
     SLIM_URL = 15
     SLIM_BONUS_PERC = 16
     REMAP_TERMS = 17
+    DO_NOT_TRIM_BRANCH_AT = 18
 
 
 class GenedescConfigParser(object):
@@ -104,6 +105,8 @@ def _get_module_property_name(prop: ConfigModuleProperty):
             property_name = "slim_bonus_perc"
         elif prop == ConfigModuleProperty.REMAP_TERMS:
             property_name = "remap_terms"
+        elif prop == ConfigModuleProperty.DO_NOT_TRIM_BRANCH_AT:
+            property_name = "do_not_trim_branch_at"
         return property_name
 
     def get_prepostfix_sentence_map(self, module: Module, special_cases_only: bool = False, humans: bool = False):
diff --git a/genedescriptions/descriptions_generator.py b/genedescriptions/descriptions_generator.py
index 965b9c6..4387cea 100644
--- a/genedescriptions/descriptions_generator.py
+++ b/genedescriptions/descriptions_generator.py
@@ -153,6 +153,21 @@ def get_module_sentences(self, aspect: str, qualifier: str = '',
                 put_anatomy_male_at_end=True if aspect == 'A' else False)
         return ModuleSentences(sentences)
 
+    def separate_do_not_trim_from_trim_terms(self, term_ids: List[str]):
+        branch_root_ids = self.config.get_module_property(module=self.module,
+                                                          prop=ConfigModuleProperty.DO_NOT_TRIM_BRANCH_AT)
+        if branch_root_ids:
+            do_not_trim_terms = []
+            trim_terms = []
+            for term_id in term_ids:
+                if node_is_in_branch(ontology=self.ontology, node_id=term_id, branch_root_ids=branch_root_ids):
+                    do_not_trim_terms.append(term_id)
+                else:
+                    trim_terms.append(term_id)
+            return do_not_trim_terms, trim_terms
+        else:
+            return [], term_ids
+
     def reduce_num_terms(self, terms: Set[str], min_distance_from_root: int = 0) -> TrimmingResult:
         """
         Reduce the initial set of terms by resolving parent child relationships, deleting overlap with previous
@@ -177,11 +192,15 @@ def reduce_num_terms(self, terms: Set[str], min_distance_from_root: int = 0) ->
         max_terms = self.config.get_module_property(module=self.module,
                                                     prop=ConfigModuleProperty.MAX_NUM_TERMS_IN_SENTENCE)
         if 0 < max_terms < len(terms):
-            trimming_result = self.trimmer.trim(terms, max_terms, min_distance_from_root)
+            do_not_trim_terms, trim_terms = self.separate_do_not_trim_from_trim_terms(term_ids=terms)
+            trimming_result = self.trimmer.trim(trim_terms, max_terms, min_distance_from_root)
+            if do_not_trim_terms:
+                trimming_result.final_terms.extend(do_not_trim_terms)
+                trimming_result.covered_nodes.update(do_not_trim_terms)
         else:
             trimming_result.final_terms = terms
             trimming_result.covered_nodes = terms
-            self.terms_already_covered.update(terms)
+        self.terms_already_covered.update(terms)
         if self.config.get_module_property(module=self.module, prop=ConfigModuleProperty.DEL_CHILDREN_IF_PARENT):
             trimming_result.final_terms = self.remove_children_if_parents_present(
                 terms=trimming_result.final_terms, ontology=self.ontology,
diff --git a/genedescriptions/ontology_tools.py b/genedescriptions/ontology_tools.py
index 0f8b996..c55b1ea 100644
--- a/genedescriptions/ontology_tools.py
+++ b/genedescriptions/ontology_tools.py
@@ -208,4 +208,9 @@ def _set_information_content_in_subgraph(ontology: Ontology, root_id: str, maxle
                                              relations=relations)
 
 
+def node_is_in_branch(ontology: Ontology, node_id: str, branch_root_ids: List[str]):
+    branch_root_ids = set(branch_root_ids)
+    return any([parent_id in branch_root_ids for parent_id in ontology.ancestors(node=node_id, reflexive=True)])
+
+
 
diff --git a/wormbase/config_wb.yml b/wormbase/config_wb.yml
index 4aa29da..4ff2a0f 100644
--- a/wormbase/config_wb.yml
+++ b/wormbase/config_wb.yml
@@ -548,6 +548,9 @@ do_exp_sentences_options:
     - "DOID:0080015"
     - "DOID:0050117"
     - "DOID:0080014"
+  do_not_trim_branch_at:
+    - "DOID:10652"
+    - "DOID:9884"
   evidence_codes:
     IMP:
       group: EXPERIMENTAL
@@ -636,6 +639,9 @@ do_via_orth_sentences_options:
     - "DOID:0080015"
     - "DOID:0050117"
     - "DOID:0080014"
+  do_not_trim_branch_at:
+    - "DOID:10652"
+    - "DOID:9884"
   evidence_codes:
     ISS:
       group: ORTHOLOGY_BASED