HL7 v2 specification
Segments, fields, data types, tables and message structures for each covered version. Pick a version to browse it, or search the whole reference above.
Versions 11
- HL7 v22.1
- HL7 v22.2
- HL7 v22.3
- Segments110
- Data types92
- Tables275
- Message structures276
- HL7 v22.3.1
- Segments110
- Data types91
- Tables295
- Message structures276
- HL7 v22.4
- Segments138
- Data types92
- Tables397
- Message structures326
- HL7 v22.5
- Segments150
- Data types90
- Tables461
- Message structures353
- HL7 v22.5.1
- Segments150
- Data types90
- Tables461
- Message structures353
- HL7 v22.6
- Segments174
- Data types90
- Tables526
- Message structures399
- HL7 v22.7
- Segments175
- Data types90
- Tables524
- Message structures356
- HL7 v22.7.1
- Segments175
- Data types85
- Tables524
- Message structures356
- HL7 v22.8
- Segments181
- Data types83
- Tables545
- Message structures362