The FHS segment is used to head a file (group of batches) as defined in Section 2.10.3, "HL7 batch protocol".
14
C.LenElementv2.6
11-STR1-00067FHS-1File Field SeparatorMin Length
24..5-STR1-00068FHS-2File Encoding Characters2
3--HDO1-00069FHS-3File Sending ApplicationLength
4--HDO1-00070FHS-4File Sending FacilityLength
5--HDO1-00071FHS-5File Receiving ApplicationLength
6--HDO1-00072FHS-6File Receiving FacilityLength
7--DTMO1-00073FHS-7File Creation Date/TimeLength
8-40=STO1-00074FHS-8File Security2
9-20=STO1-00075FHS-9File Name/ID2
10-80#STO1-00076FHS-10File Header Comment2
11-20=STO1-00077FHS-11File Control ID2
12-20=STO1-00078FHS-12Reference File Control ID2
13--HDO1-02269FHS-13File Sending Network AddressLength
14--HDO1-02270FHS-14File Receiving Network AddressLength