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3.3.6 AL1 - patient allergy information segment

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.

Figure 3-6. AL1 attributes

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

3.3.6.0 AL1 field definitions

3.3.6.1 Set ID - AL1 (SI) 00203

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.

3.3.6.2 Allergy type (IS) 00204

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

3.3.6.3 Allergy code/mnemonic/description (CE) 00205

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.

3.3.6.4 Allergy severity (IS) 00206

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

3.3.6.5 Allergy reaction (ST) 00207

Definition: This field contains a short, textual description of the specific allergy reaction (convulsions, sneeze, rash, etc.).

3.3.6.6 Identification date (DT) 00208

Definition: This field contains the date that the allergy was identified.

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