01552
Allergy Unique Identifier
2011-03-06
Definition: This field contains a value that uniquely identifies a single allergy for a person. It is unique across all segments and messages for a person. If a system maintains allergen codes as a unique identifier for a particular allergy, then this field should not be used.
This field is conditionally required. The surrogate field to use is IAM-3 - Allergen Code/Mnemonic/Description if that field can uniquely identify the allergy on the receiving system.
LengthNot specified
4 components
| 1 | O | - | Entity Identifier | |
| 2 | O | Namespace ID | ||
| 3 | C | - | Universal ID | |
| 4 | C | Universal ID Type |