AL1 - Patient allergy information (HL7 v2.4)
Versions: v2.3 v2.3.1 v2.4 v2.5.1 v2.6 v2.7.1
The AL1 segment (Patient allergy information) has 6 fields in HL7 v2.4. Fields are addressed as
AL1-n; composite fields break into components AL1-n.m. Paste a message into the
parser to see every field annotated with this table.
| # | Name | Type | Len | Opt | Repeats | Table |
|---|---|---|---|---|---|---|
| 1 | Set ID - AL1 | CE | 250 | Required | No | |
| 2 | Allergen Type Code | CE | 250 | Optional | No | 0127 |
| 3 | Allergen Code/Mnemonic/Description | CE | 250 | Required | No | |
| 4 | Allergy Severity Code | CE | 250 | Optional | No | 0128 |
| 5 | Allergy Reaction Code | ST | 15 | Optional | Yes | |
| 6 | Identification Date | DT | 8 | Optional | No |
Synthetic example
AL1|1|DA|7980^Penicillin^AMT|SV|Anaphylaxis