HL7 段中的括号和大括号是什么意思? [英] What do brackets and braces mean in HL7 segments?

问题描述

我正在处理一个涉及 HL7 消息的项目.我一直在阅读文档以了解不同类型的段的含义.

I'm working on a project that involves HL7 messages. I've been reading the documentation to understand what the different kind of segments mean.

我在查看文档时遇到了三种不同的语法，它们如下:

I've come across three different kinds of syntax when looking at the documents, they are below:

不带任何花括号或方括号的段、同时带有花括号和方括号的段和只带方括号的段有什么区别?

What is the difference between a segment without any sort of braces or brackets, a segment with both braces and brackets, and a segment with just brackets?

我假设带括号的段可能是某种数组或列表，但我找不到任何证实这一点的内容.

I assumed a segment with brackets may be some sort of array or list, but I haven't been able to find anything confirming this.

推荐答案

括号表示该段是可选的.[UAC] 表示 UAC 段可能在也可能不在消息中.

Brackets indicate the segment is optional. [UAC] means the UAC segment may or may not be in the message.

大括号(或大括号)表示该段可以重复.[{ SFT }] 表示 SFT 段可能在也可能不在消息中，如果是，可以重复多次.

Braces (or curly brackets) indicate the segment can repeat. [{ SFT }] means the SFT segment may or may not be in the message, and could repeat multiple times if it is.

没有任何方括号或大括号的段应该在消息中出现一次.

A segment without any brackets or braces should be in the message once.

例如，请参见此页面.

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