# `HL7v2.Profiles.IHE.PIX`
[🔗](https://github.com/Balneario-de-Cofrentes/hl7v2/blob/v3.10.1/lib/hl7v2/profiles/ihe/pix.ex#L1)

IHE Patient Identifier Cross-Reference (PIX) conformance profiles.

Ships factory functions for the three PIX transactions in the IHE
ITI Technical Framework Vol 2:

- **ITI-8 Patient Identity Feed** — `ADT^A01/A04/A08/A40` sent from
  a Patient Identity Source to a PIX Manager or XDS Document
  Registry. Defined on **HL7 v2.3.1** (PIX is one of the earliest
  IHE profiles and its version has not been rebased). Source:
  IHE ITI TF-2 §3.8.
- **ITI-9 PIX Query** — `QBP^Q23` request / `RSP^K23` response.
  Defined on HL7 v2.5. Source: IHE ITI TF-2 §3.9.
- **ITI-10 PIX Update Notification** — `ADT^A31` with PV1-2 pinned
  to `"N"`. Defined on HL7 v2.5. Source: IHE ITI TF-2 §3.10.

Note the version mix: ITI-8 is the only PIX transaction on v2.3.1.
The profile DSL gates each profile by both message type AND
version, so an ITI-8 v2.3.1 feed profile will not accidentally
match a v2.5 ADT^A01.

## Usage

    profile = HL7v2.Profiles.IHE.PIX.iti_8_feed_a01()
    HL7v2.validate(msg, profile: profile)

# `all`

```elixir
@spec all() :: %{required(String.t()) => HL7v2.Profile.t()}
```

Returns the complete PIX profile catalog.

# `iti_8_feed_a01`

```elixir
@spec iti_8_feed_a01() :: HL7v2.Profile.t()
```

ITI-8 ADT^A01 Patient Identity Feed — Admit Inpatient. HL7 v2.3.1.
Source: IHE ITI TF-2 §3.8.

# `iti_8_feed_a04`

```elixir
@spec iti_8_feed_a04() :: HL7v2.Profile.t()
```

ITI-8 ADT^A04 Patient Identity Feed — Register Outpatient.
HL7 v2.3.1. Source: IHE ITI TF-2 §3.8.

# `iti_8_feed_a08`

```elixir
@spec iti_8_feed_a08() :: HL7v2.Profile.t()
```

ITI-8 ADT^A08 Patient Identity Feed — Update Patient Information.
HL7 v2.3.1. Source: IHE ITI TF-2 §3.8.

# `iti_8_feed_a40`

```elixir
@spec iti_8_feed_a40() :: HL7v2.Profile.t()
```

ITI-8 ADT^A40 Patient Identity Feed — Merge Patient.
HL7 v2.3.1. Requires MRG segment and MRG-1 populated.
Source: IHE ITI TF-2 §3.8.

# `iti_9_query`

```elixir
@spec iti_9_query() :: HL7v2.Profile.t()
```

ITI-9 QBP^Q23 — PIX Query. HL7 v2.5.

Requires MSH, QPD, RCP. QPD-1 is pinned to `"IHE PIX Query"` and
RCP-1 is pinned to `"I"` (Immediate mode). QPD-3 (Person
Identifier) must be populated.

Source: IHE ITI TF-2 §3.9.

# `iti_9_response`

```elixir
@spec iti_9_response() :: HL7v2.Profile.t()
```

ITI-9 RSP^K23 — PIX Query Response. HL7 v2.5.

Requires MSH, MSA, QAK, QPD. PID is optional — present only when
patient IDs were found. QAK-2 carries the response status (OK,
NF, AE per IHE ITI TF-2 §3.9.4.2).

Source: IHE ITI TF-2 §3.9.

# `iti_10_update`

```elixir
@spec iti_10_update() :: HL7v2.Profile.t()
```

ITI-10 ADT^A31 — PIX Update Notification. HL7 v2.5.

Sent by the PIX Manager when a patient's cross-reference set
changes. PV1-2 is pinned to `"N"` (Not Applicable) because the
notification is sent outside a visit context. The PIX Manager
returns a single space for PID-5 to avoid domain-specific name
conflicts (this is a recommendation, not a hard rule here).

Source: IHE ITI TF-2 §3.10.

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