The AL1 segment contains patient allergy information of various types. Most of this information will be derived from user-defined tables. Each AL1 segment describes a single patient allergy.
SEQ |
LEN |
DT |
OPT |
RP/# |
TBL# |
ITEM# |
ELEMENT NAME |
1 |
4 |
SI |
R |
00203 |
Set ID - AL1 |
||
2 |
2 |
IS |
0127 |
00204 |
Allergy Type |
||
3 |
60 |
CE |
R |
00205 |
Allergy Code/Mnemonic/Description |
||
4 |
2 |
IS |
0128 |
00206 |
Allergy Severity |
||
5 |
15 |
ST |
00207 |
Allergy Reaction |
|||
6 |
8 |
DT |
00208 |
Identification Date |
AL1-1-set ID-allergy contains the number that identifies this transaction. For the first occurrence of the segment, the sequence number shall be 1, for the second occurrence it shall be 2, etc.
Definition: This field indicates a general allergy category (drug, food, pollen, etc.). Refer to user-defined table 0127 - Allergy type for suggested values.
User-defined Table 0127 - Allergy type
Value |
Description |
DA |
Drug Allergy |
FA |
Food Allergy |
MA |
Miscellaneous Allergy |
MC |
Miscellaneous Contraindication |
Components: <identifier (ST)> ^ <text (ST)> ^ <name of coding system (ST)> ^ <alternate identifier (ST)> ^ <alternate text (ST)> ^ <name of alternate coding system (ST)>
Definition: This field uniquely identifies a particular allergy. This element may conform to some external, standard coding system (that must be identified), or it may conform to local, largely textual or mnemonic descriptions.
Definition: This field indicates the general severity of the allergy (severe, moderate, mild, etc.). Refer to user-defined table 0128 - Allergy severity for suggested values.
User-defined Table 0128 - Allergy severity
Value |
Description |
SV |
Severe |
MO |
Moderate |
MI |
Mild |
Definition: This field contains a short, textual description of the specific allergy reaction (convulsions, sneeze, rash, etc.).
Definition: This field contains the date that the allergy was identified.