# `HL7v2.Type.CSU`
[🔗](https://github.com/Balneario-de-Cofrentes/hl7v2/blob/v3.10.1/lib/hl7v2/type/csu.ex#L1)

Channel Sensitivity and Units (CSU) -- HL7v2 composite data type.

Defines the sensitivity and units of measurement for a waveform channel.
Used in CD (Channel Definition).

7 components:
1. Channel Sensitivity (NM)
2. Unit of Measure Identifier (ST)
3. Unit of Measure Description (ST)
4. Unit of Measure Coding System (ID) -- Table 0396
5. Alternate Unit of Measure Identifier (ST)
6. Alternate Unit of Measure Text (ST)
7. Alternate Unit of Measure Coding System (ID) -- Table 0396

# `t`

```elixir
@type t() :: %HL7v2.Type.CSU{
  alternate_unit_of_measure_coding_system: binary() | nil,
  alternate_unit_of_measure_identifier: binary() | nil,
  alternate_unit_of_measure_text: binary() | nil,
  channel_sensitivity: binary() | nil,
  unit_of_measure_coding_system: binary() | nil,
  unit_of_measure_description: binary() | nil,
  unit_of_measure_identifier: binary() | nil
}
```

# `encode`

```elixir
@spec encode(t() | nil) :: list()
```

Encodes a CSU to a list of component strings.

## Examples

    iex> HL7v2.Type.CSU.encode(%HL7v2.Type.CSU{channel_sensitivity: "0.1", unit_of_measure_identifier: "mV"})
    ["0.1", "mV"]

    iex> HL7v2.Type.CSU.encode(nil)
    []

# `parse`

```elixir
@spec parse(list()) :: t()
```

Parses a CSU from a list of components.

## Examples

    iex> HL7v2.Type.CSU.parse(["0.1", "mV", "millivolts", "UCUM"])
    %HL7v2.Type.CSU{channel_sensitivity: "0.1", unit_of_measure_identifier: "mV", unit_of_measure_description: "millivolts", unit_of_measure_coding_system: "UCUM"}

    iex> HL7v2.Type.CSU.parse([])
    %HL7v2.Type.CSU{}

---

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