Table 3.
Summary of the differences between the Standard’s CDEs and their referenced terminology standards, Versions 1 and 2
| CDEs Version 1 | CDEs Version 2 |
|---|---|
| • 35/77 elements reference HL7 v2.3.1 | • 11/75 elements reference HL7 v2.3.1 |
| • 2/77 elements reference HL7 v2.5 | • 0 elements reference HL7 v2.5 |
| • 5 HL7 data types used | • 3 HL7 data types used |
| • HL7 tables referenced | • 1 HL7 table referenced for 1 CDE |
| • LOINC not referenced | • LOINC referenced |
| • SNOMED-CT not referenced | • SNOMED-CT referenced |
| • Date of birth | • Year of birth |
| • Date of death | • Year of death |
| • 5 digit zip code | • First 3 digits of zip code |
| • Contact person is required | • Contact person not included |
| • Specific date of diagnosis and 1st symptom are required | • Specific date of diagnosis and 1st symptom are not included |
| • Sex is includes genetic and social sex, both required | • Sex is a single element, required |
| • HL7 table 0163 for yes/no relationships | • LOINC yes/no/refused/don’t know or LOINC yes/no |
| • HL7 table 0063 for relationships | • LOINC relationships |
| • OMB race categories | • LOINC extended race |
| • OMB ethnicity categories | • LOINC ethnicity |
| • AHRQ-modified for insurance type element | • LOINC insurance |
| • ACS Questionnaire and US Census for educational attainment element >18 | • LOINC level of education |
| • ACS Questionnaire and US Census for educational attainment element <18 | • Unreferenced list |
| • US Census for family income element | • Not referenced, but identical income groupings |
| • Age at onset and 1st symptom uses HL7 TQ1 segment | • Age at onset has age in years with specified categories |
| • Rare disease diagnosis ORDR controlled vocabulary | • SNOMED-CT |