This field encodes the following portions of the CMR:The AL1segment is used here to communicate information about allergies. If the site stores more information about this allergy than there are fields defined in this segments, the information that could not be put here could be put in OBR/OBX segments with appropriate pointers to the relevant AL1 segment.
CMR attribute type comments Allergy/Adverse Reaction: *Allergy/Reaction Number NM *Problem Object This allows for allergy name, comments field [ie, about reaction], coding if available, etc. The Problem Object consist of the following: *Problem Name ST concatenated text Vocabulary Name ST single term Modifier(,/o, etc) ST Active/inactive ST Dx coding scheme ST Dx code ST Date DT last entered Comment ST
This segment is described in figure 3-6 on page 3-38 of the version 2.2 standard.
| field | Field name | value | comment |
|---|---|---|---|
| 1 | Set ID - Allergy | Start count in a message at 1 | This number will be used to identify a link from an OBR/OBX segment to this field. Reuired by HL7 standard. Encodes Allergy/Reaction Number from the CMR |
| 3 | Allergy code/mnemonic/description | Fill in coded entry in the form of code^allergy name^coding standard | Required by HL7 standard. Subfield 2 is minimally expected. This encodes Problem Name, Dx coding scheme and Dx code from the Problem Object in the Allergy section of the CMR. |
| 6 | Identification date | Date allergy was identified | Encodes Date from the Problem Object in the Allergy section of the CMR. |