LS
	Loop Header	.	Pos: 331 Max: 1 Detail - Optional Loop: POC Elements: 1	.

To indicate that the next segment begins a loop Element Summary:

Semantics:

1.

One loop may be nested contained within another loop, provided the inner nested loop terminates before the outer loop. When specified by the standard setting body as mandatory, this segment in combination with "LE", must be used. It is not to be used if not specifically set forth for use. The loop identifier in the loop header and trailer must be identical. The value for the identifier is the loop ID of the required loop segment. The loop ID number is given on the transaction set diagram in the appropriate ASC X12 version/release.

Comments:

1.	See Figures Appendix for an explanation of the use of the LS and LE segments.