diff --git a/inst/csv/OMOP_CDMv5.3_Field_Level.csv b/inst/csv/OMOP_CDMv5.3_Field_Level.csv
index 167da06..5286127 100644
--- a/inst/csv/OMOP_CDMv5.3_Field_Level.csv
+++ b/inst/csv/OMOP_CDMv5.3_Field_Level.csv
@@ -184,7 +184,7 @@ death,death_datetime,No,datetime,NA,If not available set time to midnight (00:00
 death,death_type_concept_id,No,integer,"This is the provenance of the death record, i.e., where it came from. It is possible that an administrative claims database would source death information from a government file so do not assume the Death Type is the same as the Visit Type, etc.",Use the type concept that be reflects the source of the death record. [Accepted Concepts](https://athena.ohdsi.org/search-terms/terms?domain=Type+Concept&standardConcept=Standard&page=1&pageSize=15&query=).,No,Yes,CONCEPT,CONCEPT_ID,Type Concept,NA,NA
 death,cause_concept_id,No,integer,"This is the Standard Concept representing the Person's cause of death, if available.","There is no specified domain for this concept, just choose the Standard Concept Id that best represents the person's cause of death.",No,Yes,CONCEPT,CONCEPT_ID,NA,NA,NA
 death,cause_source_value,No,varchar(50),NA,"If available, put the source code representing the cause of death here.",No,No,NA,NA,NA,NA,NA
-death,cause_source_concept_id,No,integer,NA,If the cause of death was coded using a Vocabulary present in the OMOP Vocabularies put the CONCEPT_ID representing the cause of death here.,No,Yes,CONCEPT,CONCEPT_ID,NA,NA,NA
+death,cause_source_concept_id,No,integer,NA,If the cause of death was coded using a Vocabulary present in the OMOP Vocabularies (not necessarily a standard concept) put the CONCEPT_ID representing the cause of death here.,No,Yes,CONCEPT,CONCEPT_ID,NA,NA,NA
 note,note_id,Yes,integer,A unique identifier for each note.,NA,Yes,No,NA,NA,NA,NA,NA
 note,person_id,Yes,integer,NA,NA,No,Yes,PERSON,PERSON_ID,NA,NA,NA
 note,note_date,Yes,date,The date the note was recorded.,NA,No,No,NA,NA,NA,NA,NA
diff --git a/inst/csv/OMOP_CDMv5.4_Field_Level.csv b/inst/csv/OMOP_CDMv5.4_Field_Level.csv
index a3b07d3..fa2c3fa 100644
--- a/inst/csv/OMOP_CDMv5.4_Field_Level.csv
+++ b/inst/csv/OMOP_CDMv5.4_Field_Level.csv
@@ -196,7 +196,7 @@ death,death_datetime,No,datetime,NA,If not available set time to midnight (00:00
 death,death_type_concept_id,No,integer,"This is the provenance of the death record, i.e., where it came from. It is possible that an administrative claims database would source death information from a government file so do not assume the Death Type is the same as the Visit Type, etc.",Use the type concept that be reflects the source of the death record. [Accepted Concepts](https://athena.ohdsi.org/search-terms/terms?domain=Type+Concept&standardConcept=Standard&page=1&pageSize=15&query=). A more detailed explanation of each Type Concept can be found on the [vocabulary wiki](https://github.com/OHDSI/Vocabulary-v5.0/wiki/Vocab.-TYPE_CONCEPT).,No,Yes,CONCEPT,CONCEPT_ID,Type Concept,NA,NA
 death,cause_concept_id,No,integer,"This is the Standard Concept representing the Person's cause of death, if available.","There is no specified domain for this concept, just choose the Standard Concept Id that best represents the person's cause of death.",No,Yes,CONCEPT,CONCEPT_ID,NA,NA,NA
 death,cause_source_value,No,varchar(50),NA,"If available, put the source code representing the cause of death here.",No,No,NA,NA,NA,NA,NA
-death,cause_source_concept_id,No,integer,NA,If the cause of death was coded using a Vocabulary present in the OMOP Vocabularies put the CONCEPT_ID representing the cause of death here.,No,Yes,CONCEPT,CONCEPT_ID,NA,NA,NA
+death,cause_source_concept_id,No,integer,NA,If the cause of death was coded using a Vocabulary present in the OMOP Vocabularies (not necessarily a standard concept) put the CONCEPT_ID representing the cause of death here.,No,Yes,CONCEPT,CONCEPT_ID,NA,NA,NA
 note,note_id,Yes,integer,A unique identifier for each note.,NA,Yes,No,NA,NA,NA,NA,NA
 note,person_id,Yes,integer,NA,NA,No,Yes,PERSON,PERSON_ID,NA,NA,NA
 note,note_date,Yes,date,The date the note was recorded.,NA,No,No,NA,NA,NA,NA,NA