# `HL7v2.Segment.QID`
[🔗](https://github.com/Balneario-de-Cofrentes/hl7v2/blob/v3.10.1/lib/hl7v2/segment/qid.ex#L1)

Query Identification (QID) segment — HL7v2 v2.5.1.

Used to identify a query instance for query-by-parameter messages.

2 fields per HL7 v2.5.1 specification.

# `t`

```elixir
@type t() :: %HL7v2.Segment.QID{
  extra_fields: term(),
  message_query_name: term(),
  query_tag: term()
}
```

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*Consult [api-reference.md](api-reference.md) for complete listing*