--- title: "HL7 Module Overview" slug: "hl7-module" description: "This document provides an introduction to the HL7 Module in Decisions, which is used to handle HL7 type messages. HL7 is a specification for allowing medical software and hardware systems to communicate with each other. Decisions' HL7 interface is made of three parts that handle receiving, processing, and sending HL7 messages from one system to another. " updated: 2026-07-02T16:09:47Z published: 2026-07-02T16:09:47Z canonical: "documentation.decisions.com/hl7-module" --- > ## Documentation Index > Fetch the complete documentation index at: https://documentation.decisions.com/llms.txt > Use this file to discover all available pages before exploring further. # HL7 Module Overview ## Overview The **HL7 Module** adds functionality to Decisions for users to send, receive, transform, and manage HL7 messages. HL7 is a specification for allowing medical software and hardware systems to communicate with one another. The module provides Users with an interface that includes **Receivers, Emitters**, and **Processing.** For more information on the HL7 standard, the origin, and more, see [http:///www.hl7.org](http://www.hl7.org). ### Prerequisites - [Install](/version-10/docs/installing-modules-decisions) the **HL7 Module.** - Create a [project dependency](https://documentation.decisions.com/version-10/docs/project-dependencies). ### Considerations Note for Third-Party Systems and SubscriptionsCustomers are responsible for securing and maintaining accounts with third-party systems and subscriptions. --- ## HL7 Interface After the Module is installed, the User must add the HL7 Module as a **Dependency** to a Project for the Module steps and folders to be visible. This can be done by navigating to **Info > Dependencies** and then clicking **MANAGE.** Select **Decisions.HL7** under **Modules** and then click **CONFIRM.** ![](https://cdn.document360.io/6ef8bcc1-6489-4486-9ad1-83acff7e5df0/Images/Documentation/image-1783008479742.png) Once the **HL7 Module** has been added as a **Dependency,** a new folder will appear under **Manage > Integrations** called **HL7 Interfaces**. Users have the option to add Interfaces to the Project by selecting **ADD HL7 INTERFACE.** ![](https://cdn.document360.io/6ef8bcc1-6489-4486-9ad1-83acff7e5df0/Images/Documentation/image-1783008509325.png) Once interfaces are added to the folder, Users can view and edit the status of each interface on the **HL7 Interfaces** Dashboard. The interface will reflect color rules by turning green when the interface is turned on/enabled and red when it is turned off/disabled. ![](https://cdn.document360.io/6ef8bcc1-6489-4486-9ad1-83acff7e5df0/Images/Documentation/image-1783008529974.png) Additionally, Users can also multi-select interfaces to perform group actions, such as enabling multiple interfaces or disabling multiple interfaces. ![](https://cdn.document360.io/6ef8bcc1-6489-4486-9ad1-83acff7e5df0/Images/Documentation/image-1783008555001.png) | Configuration Option | Description | | --- | --- | | Output Version | The HL7 message output version that will be used for the Interface | | Message Parsing | HL7 messages can be parsed via Strict Parsing, Generic, or only for specific message types | | Advanced | A category that contains settings involved with the storage mode for both sending and receiving messages | ### Understanding the Interface Components The interface in Decisions is comprised of three essential parts: | Interface Component | Description | | --- | --- | | Receivers | Get HL7 messages from a defined source (TCP/IP, File System, Flow). | | Processing | Applies Rules, data transformations, assigns tasks and workflows using the data that was sent. With every interface created, an automatic Designer Project is created where users can build workflows and Rules. These workflows allow users to process messages and make use of the data within the messages. This is where business logic is applied to the HL7 data stream. The process Flows are found under LIST. (Pre Process Flow, Process Flow, Post Process Flow). | | Emitters | Send HL7 message out to another system that is waiting to receive messages (TCP/IP, File System, Redirect to HL7 Interface). | A Flow receiver can use any of the Flow steps and external system integration capabilities to get data. This allows the user to use a Flow receiver to receive messages from different types of sources, like databases, networks, web services, email, and more. If choosing a Flow receiver, there will not be a Flow emitter to choose from. This is because a user can do anything with the message in the main processing Flow, and work can also be concluded with the message. ![](https://cdn.document360.io/6ef8bcc1-6489-4486-9ad1-83acff7e5df0/Images/Documentation/image-1783008575729.png) --- ## Upgrading to v9 When upgrading to v9, HL7 interfaces within Legacy Projects can be moved individually to new Projects as needed. Once the Legacy Project containing them is converted, the interfaces will remain within that Project and appear in the **Manage > Interfaces** folder. However, you still have the flexibility to rearrange them within the Project to different Designer Folders or move them to new Projects as necessary. --- ## What Message Types are Supported? The **HL7 Module** supports every standard message type defined in the specification: ``` ACK ADR^A19 ADT^A01 ADT^A02 ADT^A03 ADT^A04 ADT^A05 ADT^A06 ADT^A07 ADT^A08 ADT^A09 ADT^A10 ADT^A11 ADT^A12 ADT^A13 ADT^A14 ADT^A15 ADT^A16 ADT^A17 ADT^A18 ADT^A20 ADT^A21 ADT^A22 ADT^A23 ADT^A24 ADT^A25 ADT^A26 ADT^A27 ADT^A28 ADT^A29 ADT^A30 ADT^A31 ADT^A32 ADT^A33 ADT^A34 ADT^A35 ADT^A36 ADT^A37 ADT^A38 ADT^A39 ADT^A40 ADT^A41 ADT^A42 ADT^A43 ADT^A44 ADT^A45 ADT^A46 ADT^A47 ADT^A48 ADT^A49 ADT^A50 ADT^A51 ADT^A52 ADT^A54 ADT^A60 ADT^A61 BAR^P01 BAR^P02 BAR^P05 BAR^P06 BAR^P10 BAR^P12 BPS^O29 BRP^O30 BRT^O32 BTS^O31 CCF^I22 CCI^I22 CCM^I21 CCQ^I19 CCR^I16 CCU^I20 CQU^I19 CRM^C01 CRM^C02 CRM^C03 CRM^C04 CRM^C05 CRM^C06 CRM^C07 CRM^C08 CSU^C09 CSU^C10 CSU^C11 CSU^C12 DFT^P03 DFT^P11 DOC^T12 DSR^Q01 DSR^Q02 DSR^Q03 EAC^U07 EAN^U09 EAR^U08 EDR^Q01 EDR^R07 EHC^E01 EHC^E02 EHC^E04 EHC^E10 EHC^E12 EHC^E13 EHC^E15 EHC^E20 EHC^E21 EHC^E24 EQQ^Q01 EQQ^Q04 ERP^Q01 ERP^R09 ESR^U02 ESU^U01 INR^U06 INU^U05 LSU^U12 MDM^T01 MDM^T02 MDM^T03 MDM^T04 MDM^T05 MDM^T06 MDM^T07 MDM^T08 MDM^T09 MDM^T10 MDM^T11 MFK^M01 MFK^M02 MFK^M03 MFK^M04 MFK^M05 MFK^M06 MFK^M07 MFN^M01 MFN^M02 MFN^M03 MFN^M04 MFN^M05 MFN^M06 MFN^M07 MFN^M08 MFN^M09 MFN^M10 MFN^M11 MFN^M12 MFN^M13 MFN^M15 MFN^M16 MFN^M17 MFN^ZNN MFQ^M01 MFR^M01 MFR^M04 MFR^M05 MFR^M06 MFR^M07 NMD^N02 NMQ^N01 NMR^N01 OMB^O27 OMD^O01 OMD^O03 OMG^O19 OMI^O23 OML^O21 OML^O33 OML^O35 OML^O39 OMN^O01 OMN^O07 OMP^O09 OMS^O01 OMS^O05 OPL^O37 OPR^O38 OPU^R25 ORA^R33 ORB^O28 ORD^O02 ORD^O04 ORF^R02 ORF^R04 ORG^O20 ORI^O24 ORL^O22 ORL^O34 ORL^O36 ORL^O40 ORM^O01 ORN^O02 ORN^O08 ORP^O10 ORR^O02 ORS^O02 ORS^O06 ORU^R01 ORU^R30 OSM^R26 OSQ^Q06 OSR^Q06 OUL^R21 OUL^R22 OUL^R23 OUL^R24 PEX^P07 PEX^P08 PGL^PC6 PGL^PC7 PGL^PC8 PIN^I07 PMU^B01 PMU^B03 PMU^B04 PMU^B07 PMU^B08 PPG^PCG PPG^PCH PPG^PCJ PPP^PCB PPP^PCC PPP^PCD PPR^PC1 PPR^PC2 PPR^PC3 PPT^PCL PPV^PCA PRR^PC5 PTR^PCF QBP^E03 QBP^E22 QBP^K13 QBP^Q11 QBP^Q13 QBP^Q15 QBP^Q21 QBP^QNN QBP^Z73 QCK^Q02 QCN^J01 QRY QRY^A19 QRY^PC4 QRY^PC9 QRY^PCE QRY^PCK QRY^Q01 QRY^Q02 QRY^R02 QRY^T12 QSB^Q16 QVR^Q17 RAR^RAR RAS^O01 RAS^O02 RAS^O17 RCI^I05 RCL^I06 RDE^O01 RDE^O11 RDO^O01 RDR^RDR RDS^O01 RDS^O13 RDY^K15 REF^I12 REF^I13 REF^I14 REF^I15 RER^RER RGR^RGR RGV^O01 RGV^O15 ROR^R0R ROR^ROR RPA^I08 RPA^I09 RPA^I10 RPA^I11 RPI^I01 RPI^I04 RPL^I02 RPR^I03 RQA^I08 RQA^I09 RQA^I10 RQA^I11 RQC^I05 RQC^I06 RQI^I01 RQI^I02 RQI^I03 RQP^I04 RQQ^Q01 RQQ^Q09 RRA^O02 RRA^O18 RRD^O02 RRD^O14 RRE^O01 RRE^O02 RRE^O12 RRG^O02 RRG^O16 RRI^I12 RRI^I13 RRI^I14 RRI^I15 RRO^O02 RSP^E03 RSP^E22 RSP^K11 RSP^K13 RSP^K15 RSP^K21 RSP^K22 RSP^K23 RSP^K24 RSP^K25 RSP^K31 RSP^K32 RSP^Q11 RSP^Z82 RSP^Z86 RSP^Z88 RSP^Z90 RTB^K13 RTB^KNN RTB^Q13 RTB^Z74 SDR^S31 SDR^S32 SIU^S12 SIU^S13 SIU^S14 SIU^S15 SIU^S16 SIU^S17 SIU^S18 SIU^S19 SIU^S20 SIU^S21 SIU^S22 SIU^S23 SIU^S24 SIU^S26 SLR^S28 SPQ^Q01 SPQ^Q08 SQM^S25 SQR^S25 SRM^S01 SRM^S02 SRM^S03 SRM^S04 SRM^S05 SRM^S06 SRM^S07 SRM^S08 SRM^S09 SRM^S10 SRM^S11 SRR^S01 SRR^S02 SRR^S03 SRR^S04 SRR^S05 SRR^S06 SRR^S07 SRR^S08 SRR^S09 SRR^S10 SRR^S11 SSR^U04 SSU^U03 STC^S33 SUR^P09 TBR^Q01 TBR^R08 TCU^U10 UDM^Q05 VQQ^Q01 VQQ^Q07 VXQ^V01 VXR^V03 VXU^V04 VXX^V02 ```