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

File Header (FHS) segment — HL7v2 v2.5.1.

Defines the start of a batch file, analogous to MSH for a single message.

12 fields per HL7 v2.5.1 specification.

# `t`

```elixir
@type t() :: %HL7v2.Segment.FHS{
  extra_fields: term(),
  file_control_id: term(),
  file_creation_date_time: term(),
  file_encoding_characters: term(),
  file_field_separator: term(),
  file_header_comment: term(),
  file_name_id: term(),
  file_receiving_application: term(),
  file_receiving_facility: term(),
  file_security: term(),
  file_sending_application: term(),
  file_sending_facility: term(),
  reference_file_control_id: term()
}
```

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