Sequence

Element Name

Length

Req. / Optional

Notes

MSH.1

Set ID - PID

4

O

MSH.2

Patient ID

20

O

MSH.3

Sending Application

20

O

MSH.4

Sending Facility

20

O

MSH.5

Receiving Application

20

O

MSH.6

Receiving Facility

20

O

MSH.7

Date/Time Of Message

26

R

MSH.8

Security

20

Not used

MSH.9

Message Type

7

O

MSH.10

Message Control ID

20

O

MSH.11

Processing ID

20

O

MSH.12

Version ID

8

O

MSH.13

Sequence Number

15

Not used

MSH.14

Continuation Pointer

20

Not used

MSH.15

Accept Acknowledgement Type

2

MSH.16

Application Acknowledgement Type

2

??

MSH.17

Country Code

N/A

Not used

MSH.18

Character Set

N/A

Not used

MSH.19

Principal Language of Message

3

Not Used