6.7 PV2-Patient Visit Segment
The PV2 segment is a continuation of visit-specification information contained in the PV1 segment.

Seq	Element Name	Req	Type	Len	Comments
0	Segment ID (PV2)	R	ID	3	"PV2"
1-7	Fields 1-7	NU	AN		Not used
8	Expected Admit Date/Time	O	AN	8	YYYYMMDDhhmm[ss]
9-37	Fields 9-37	NU	AN		Not used

6.8 AL1-Allergy Information Segment
This segment contains and describes a single patient's allergy information. This information will arrive from user-defined tables.

Seq	Element Name	Req	Type	Len	Comments
0	Segment ID (AL1)	R	ID	3	“AL1”
1	Set ID – Allergy Information	NU	AN	4	HL7TEMPLATE Field
2	Allergy Type	NU	AN	2	Not used
3	Allergy Description	R	AN	15	Only a 15 char AN description is sent.
4	Allergy Severity	NU	AN	2	Not used
5	Allergy Reaction	NU	AN	15	Not used
6	Identification Date	NU	AN	8	Not used

6.9 DG1-Diagnosis Segment
The DG1 segment contains information about a patient's diagnosis.

Seq	Element Name	Req	Type	Len	Comments
0	Segment ID (DG1)	R	ID	3	"DG1"
1	Fields 1	R	ID	3	HL7TEMPLATE Field
2-3	Fields 2-3	NU	AN		Not used
4	Diagnosis Description	O	AN	40
5-19	Fields 5-19	NU	AN		Not used
R = Required, CR = Conditionally Required, O = Optional, NU = Not Used, N = Numeric, AN = Alpha/Numeric, ID = Segment Identification

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