| Attribute Type | Expanded Form | Count |
| HL7PL | HL7 preferred for language | 8459 |
| HL7CS | HL7 code status | 8459 |
| HL7ID | HL7 internal Id | 8100 |
| HL7HI | HL7 history item | 1905 |
| HL7SL | HL7 supported language | 1902 |
| HL7SCS | HL7 supported code system | 1767 |
| HL7VC | HL7 value set content | 1740 |
| HL7VD | HL7 version date | 1740 |
| HL7IS | HL7 is selectable | 734 |
| HL7II | HL7 is immutable | 562 |
| HL7AI | HL7 approved indicator | 399 |
| HL7MI | HL7 maintained indicator | 399 |
| HL7RD | HL7 release date | 399 |
| HL7CC | HL7 complete codes indicator | 399 |
| HL7RG | HL7 responsible group organization name | 396 |
| HL7BR | HL7 binding realm name | 371 |
| HL7CST | HL7 coding strength | 370 |
| HL7ED | HL7 effective date | 370 |
| HL7OD | HL7 OID | 221 |
| HL7CSC | HL7 conceptual space for class code | 191 |
| HL7AP | HL7 associated concept property | 136 |
| HL7CD | HL7 conductible | 117 |
| HL7DC | HL7 is document characteristic | 116 |
| HL7AT | HL7 applies to | 53 |
| HL7UN | HL7 usage notes | 47 |
| HL7HA | HL7 how applies | 43 |
| HL7TY | HL7 property type | 32 |
| HL7IM | HL7 is mandatory indicator | 32 |
| HL7LT | HL7 license terms | 9 |
| HL7RK | HL7 relationship kind | 9 |
| HL7OA | HL7 owning affiliate | 5 |
| HL7DI | HL7 deprecation info | 3 |
| HL7IR | HL7 inverse relationship | 3 |
| HL7NA | HL7 is navigable | 2 |
| HL7TR | HL7 transitive | 2 |
| HL7RF | HL7 reflexivity | 2 |
| HL7SY | HL7 symmetry | 2 |
| HL7IN | HL7 inverse name | 2 |
| HL7RN | HL7 package realm namespace | 1 |
| HL7CY | HL7 copyright years | 1 |
| HL7TI | HL7 title | 1 |
| HL7VE | HL7 package version | 1 |
| HL7PR | HL7 package root | 1 |
| HL7CI | HL7 package combined Id | 1 |
| HL7CP | HL7 copyright owner | 1 |
| HL7XN | HL7 xml namespace | 1 |
| HL7AR | HL7 package artifact | 1 |
| HL7MN | HL7 vocabulary model name | 1 |
| HL7SV | HL7 schema version | 1 |
| HL7PK | HL7 package kind | 1 |
| HL7DK | HL7 definition kind | 1 |
| HL7RT | HL7 rendering time | 1 |
| HL7RA | HL7 rendering application | 1 |
| Relation Name/Additional Label | Expanded Form | Count |
| CHD/ | has child relationship in a Metathesaurus source vocabulary /Empty relationship attribute | 9377 |
| PAR/ | has parent relationship in a Metathesaurus source vocabulary /Empty relationship attribute | 9377 |
| RO/supported_concept_property_in | has relationship other than synonymous, narrower, or broader/Supported concept property in | 390 |
| RO/has_supported_concept_property | has relationship other than synonymous, narrower, or broader/Has supported concept property | 390 |
| RO/context_binding_of | has relationship other than synonymous, narrower, or broader/Context binding of | 370 |
| RO/has_context_binding | has relationship other than synonymous, narrower, or broader/Has context binding | 370 |
| RO/has_supported_concept_relationship | has relationship other than synonymous, narrower, or broader/Has supported concept relationship | 343 |
| RO/supported_concept_relationship_in | has relationship other than synonymous, narrower, or broader/Supported concept relationship in | 343 |
| RO/classifies_class_code | has relationship other than synonymous, narrower, or broader/Classifies class code | 93 |
| RO/class_code_classified_by | has relationship other than synonymous, narrower, or broader/Class code classified by | 93 |
| RO/owning_subsection_of | has relationship other than synonymous, narrower, or broader/Owning subsection of | 42 |
| RO/has_owning_subsection | has relationship other than synonymous, narrower, or broader/Has owning subsection | 42 |
| RO/may_be_qualified_by | has relationship other than synonymous, narrower, or broader/May be qualified by | 20 |
| RO/may_qualify | has relationship other than synonymous, narrower, or broader/May qualify | 20 |
| RO/component_of | has relationship other than synonymous, narrower, or broader/Component of | 17 |
| RO/has_component | has relationship other than synonymous, narrower, or broader/Has component | 17 |
| RO/has_owning_section | has relationship other than synonymous, narrower, or broader/Has owning section | 10 |
| RO/owning_section_of | has relationship other than synonymous, narrower, or broader/Owning section of | 10 |
| RO/has_owning_affiliate | has relationship other than synonymous, narrower, or broader/Has owning affiliate | 4 |
| RO/owning_affiliate_of | has relationship other than synonymous, narrower, or broader/Owning affiliate of | 4 |
| RO/larger_than | has relationship other than synonymous, narrower, or broader/Larger Than | 1 |
| RO/smaller_than | has relationship other than synonymous, narrower, or broader/Smaller Than | 1 |
