0.    INTRODUCTION

       This specification provides the definition of the Medical
       service request message (MEDREQ) to be used in Electronic Data
       Interchange (EDI) between trading partners involved in
       administration, commerce and transport.

1.    SCOPE

1.1   Functional Definition

       A Medical Service Request message is sent from a service
       requester to the service provider to order investigations, to
       modify a previous order or ordered investigation or to cancel a
       previous order.

1.2   Field of Application

       The Medical service request message may be used for both
       national and international applications. It is based on
       universal practice related to administration, commerce and
       transport, and is not dependent on the type of business or
       industry.

1.3   Principles

       The message fulfills the requirements of the European
       pre-standard concerning messages for exchange of laboratory
       information within clinical chemistry, clinical biochemistry,
       toxicology, clinical immunology, immunohaematology, haematology
       and clinical microbiology. The message may, however, also be
       used for other purposes as long as the user requirements are
       meet.
       
       The CEN prENV New Laboratory Service Order message and the CEN
       prENV Laboratory Service Order Cancellation message may be
       considered as special cases of the CEN prENV Laboratory Service
       Order Modification message. The Laboratory Service Order
       Modification message may contain a mixture of new, change,
       cancel and other service types for the order itself and for the
       various requested investigations whereas the New Laboratory
       Service Order message only contains the new service type for
       the order itself and the various requested investigations and
       the Laboratory Service Order Cancellation message only contains
       the cancel service type for a complete order.
       
       The overall structure of the message is:
       - One message may include one or more service orders. 
       - The service order is connected to one service provider, one
       service requester and optionally one or more parties to receive
       copies of the order and/or subsequent result message(s).
       - Every service order is related to one main subject of
       investigation (patient, animal or material), but may also
       include information about several related subjects of
       investigation.
       - Every service order may request services concerning one or
       more samples (from the same subject of investigation) or the
       subject of investigation itself.
       - Every sample may have one collection site.
       - A requested investigation may be connected to one or more
       samples or to the subject of investigation itself.
       
       With the exception of information in FTX segments, all
       information should primarily be expressed as codes.

2.    REFERENCES

       See UNTDID, Part 4, Chapter 2.6 UN/ECE UNSM - General Introduction,
       Section 1.

3.    TERMS AND DEFINITIONS

3.1   Standard terms and definitions

       See UNTDID, Part 4, Chapter 2.6 UN/ECE UNSM - General Introduction,
       Section 2.

4.    MESSAGE DEFINITION

4.1   Data Segment Clarification

       This section should be read in conjunction with the Segment
       Table which indicate mandatory, conditional and repeating
       requirements.

0010   UNH, Message header
       A service segment starting and uniquely identifying a message.
       The message type code for the Medical service request message
       is MEDREQ.
       
       Note: Medical service request messages conforming to this
       document must contain the following data in segment UNH,
       composite S009:

       Data element  0065 MEDREQ
                     0052 D
                     0054 99A
                     0051 UN

0020   BGM, Beginning of message
       A segment for unique identification of the message and
       specification of its function.

0030   DTM, Date/time/period
       A segment identifying the date and/or time of message
       generation and/or other dates and/or times concerning the whole
       message.

0040   FTX, Free text
       A segment giving free text information, in coded or clear form,
       for specifying information concerning the whole message.


0050   Segment group 1: PNA-ADR-COM-FTX-RFF-SEQ-LAN-SPR-QUA-EMP
       A group of segments giving information about involved
       healthcare parties like the service requester, the service
       provider, parties to get copies of the request and/or the
       results, related service providers, origin of clinical
       information, supervising healthcare party, healthcare
       administrative information, sample collector, sample collector
       location and/or other parties related to the message.

0060      PNA, Party identification
          A segment for specifying the identification, name and
          address of involved healthcare organisations or
          professionals.

0070      ADR, Address
          A segment for specifying the address of the actual
          healthcare party.

0080      COM, Communication contact
          A segment giving communication numbers for the actual
          healthcare party.

0090      FTX, Free text
          A segment with free text information, in coded or clear
          form, for specifying unstructured telecommunication numbers
          of the actual healthcare party including electronic mail
          address.

0100      RFF, Reference
          A segment for specifying alternative identification numbers
          of the actual healthcare party assigned by the involved
          healthcare parties.
          
          This segment also keeps a reference to another party if the
          current party is related to another party such as department
          in a hospital, a physician in a department, etc.

0110      SEQ, Sequence details
          A segment for allocating a sequence number to the individual
          healthcare party allowing each healthcare party to be
          referenced from within the message.

0120      LAN, Language
          A segment for specifying the language used by the actual
          healthcare party.

0130      SPR, Organisation classification details
          A segment for specifying the type and medical speciality of
          a healthcare organisation.

0140      QUA, Qualification
          A segment for specifying the professional medical
          qualifications of a person.

0150      EMP, Employment details
          A segment for specifying the type, medical speciality and
          the position or military rank of a healthcare professional.


0160   Segment group 2: FCA-GIS-RFF-DTM-PTY-CIN-FTX-LAN-PAC-IRQ-TEM-
                         HAN-SG3-SG4-SG5
       A group of segments for specifying a service order.

0170      FCA, Financial charges allocation
          A segment giving information concerning payment category for
          this order.

0180      GIS, General indicator
          A segment to provide the service type of the service order,
          i.e. new order, order modification etc.

0190      RFF, Reference
          A segment for specifying the identification number of the
          order allocated by various healthcare parties, such as
          service requester, etc.
          
          The segment is also used for referencing a related
          healthcare party specified in segment group 1.

0200      DTM, Date/time/period
          A segment for specifying the date and/or time concerning the
          order such as issue date of order, due date of report, etc.

0210      PTY, Priority
          A segment for specifying the requested reporting priority
          for the whole order.

0220      CIN, Clinical information
          A segment for specifying the reason for request as well as
          comments from the requester as a diagnosis concerning this
          order.

0230      FTX, Free text
          A segment with free text information, in coded or clear
          form, for specifying the reason for request as well as
          comments from the requester concerning this order.

0240      LAN, Language
          A segment for specifying the language of the service order
          and the requested reporting language.

0250      PAC, Package
          A segment for specifying the number of sample containers
          accompanying a service order.

0260      IRQ, Information required
          A segment for specifying the requirements concerning
          acknowledgment of the service order.

0270      TEM, Test method
          A segment for specifying the reason for the request.

0280      HAN, Handling instructions
          A segment for specifying the requested commenting level of
          detail of the service report.


0290      Segment group 3: SCC-QTY-DTM-FTX
          A group of segments for specifying a standing service order.

0300         SCC, Scheduling conditions
             A segment for specifying the delivery plan.

0310         QTY, Quantity
             A segment for specifying the number of times per time
             interval a standing order should be performed.

0320         DTM, Date/time/period
             A segment for specifying the start and end date and time
             for set of ordered investigations and the time interval
             between each repetition.

0330         FTX, Free text
             A segment with free text information, in coded or clear
             form, for specifying the end condition and additional
             execution instruction of a standing service order.


0340      Segment group 4: DOC-RFF-DTM
          A group of segments for specifying a reference to another
          service order.

0350         DOC, Document/message details
             A segment for specifying the document name.

0360         RFF, Reference
             A segment for specifying the identification number of the
             referenced order.

0370         DTM, Date/time/period
             A segment for specifying the issue date and/or time of
             the referenced order.


0380      Segment group 5: ATT-RFF-ADR-COM-HAN-REL-IMD-FTX-PNA-DTM-
                            PDI-NAT-LAN-CCI-SG6-SG7-SG13-SG15
          A group of segments specifying the subject of investigation.

0390         ATT, Attribute
             A segment for specifying the type of the subject of
             investigation.

0400         RFF, Reference
             A segment for specifying the identification numbers of
             the actual subject of investigation.
             
             This segment is also used for a reference to a healthcare
             party in segment group 1 specifying a supervising
             healthcare party.

0410         ADR, Address
             A segment for specifying the address details of the
             subject of investigation.

0420         COM, Communication contact
             A segment providing a telecommunication number for the
             subject of investigation.

0430         HAN, Handling instructions
             A segment for specifying a collection warning concerning
             the subject of investigation.

0440         REL, Relationship
             A segment for specifying the association between subjects
             of investigation such as donor, foetus, etc. as well as
             the relationship of a related person to the patient.

0450         IMD, Item description
             A segment for specifying the description of the material
             being investigated if the subject of investigation is a
             material.

0460         FTX, Free text
             A segment with free text information, in coded or clear
             form, for specifying additional information about the
             material as well as an unstructured telecommunication
             number of the subject of investigation.

0470         PNA, Party identification
             A segment for identifying the patient and related person
             or name by specifying various patient name details and
             official patient ID.

0480         DTM, Date/time/period
             A segment for specifying relevant dates and/or times for
             the patient such as date of birth, date of death, etc.

0490         PDI, Person demographic information
             A segment for specifying demographic information such as
             sex, marital status and religion.

0500         NAT, Nationality
             A segment for specifying the nationality of a person.

0510         LAN, Language
             A segment for specifying the language used by the person.

0520         CCI, Characteristic/class id
             A segment for specifying the species or breed of an
             animal.


0530         Segment group 6: PAS-LOC-DTM-RFF
             A group of segments for specifying healthcare
             administrative information concerning the actual subject
             of investigation.

0540            PAS, Attendance
                A segment for specifying patient administrative
                information such as administrative status concerning
                actual hospital stay or out-patient visit or ward stay
                related to the subject of investigation.

0550            LOC, Place/location identification
                A segment for specifying the physical patient care
                location in terms of ward, room, bed, etc.

0560            DTM, Date/time/period
                A segment for specifying admission and/or discharge
                date and time or start and/or end date and time of a
                ward stay.

0570            RFF, Reference
                This segment keeps a reference to a healthcare party
                for specifying healthcare administrative information
                such as hospital, department, etc. where patient is
                admitted, located, etc.


0580         Segment group 7: CAV-CIN-LAN-DTM-FTX-RFF-SG8-SG11
             A group of segments giving information about a clinical
             observation including the origin of the clinical
             information. The clinical information may be a symptom,
             physical sign, anamnesis (medical history), clinical
             observation, diagnosis, etc.

0590            CAV, Characteristic value
                A segment for specifying the type of clinical
                information.

0600            CIN, Clinical information
                A segment for specifying the type of clinical
                observation, description of the clinical observation
                itself as well as the degree of certainty concerning
                the clinical observation.

0610            LAN, Language
                A segment for specifying the language related to the
                clinical observation.

0620            DTM, Date/time/period
                A segment for specifying date and times related to the
                clinical information, the clinical observation itself
                and the origin of clinical information.

0630            FTX, Free text
                A segment with free text information, in coded or
                clear form, for description of the clinical
                information.

0640            RFF, Reference
                This segment keeps a reference to a healthcare party
                for specifying origin of clinical information.


0650            Segment group 8: STS-SEQ-GIS-RSL-CCI-CIN-DTM-FTX-RFF-
                                  SG9-SG10
                A group of segments for specifying a clinical
                investigation result item and the clinical
                investigation itself.

0660               STS, Status
                   A segment for specifying the status of the clinical
                   investigation, e.g. preliminary results, final
                   results, etc.

0670               SEQ, Sequence details
                   A segment for allocating a sequence number to a
                   clinical investigation result item to allow
                   referencing from within this message to a specific
                   clinical investigation result item.

0680               GIS, General indicator
                   A segment for specifying the service type of the
                   clinical investigation result item, e.g. new result
                   item.

0690               RSL, Result
                   A segment for specifying the numerical value or a
                   coded text value of a clinical investigation result
                   item including unit of measurement, arithmetic
                   comparator and the deviating result indicator.

0700               CCI, Characteristic/class id
                   A segment for identifying the clinical
                   investigation and to describe specifications to the
                   clinical investigation.

0710               CIN, Clinical information
                   A segment giving a text value of a clinical
                   investigation result item as well as a comment to
                   the clinical investigation result item as a
                   diagnosis.

0720               DTM, Date/time/period
                   A segment for specifying relevant date and times
                   concerning the investigation such as date and time
                   for investigation performed, last status change and
                   a date value of a clinical observation.

0730               FTX, Free text
                   A segment with free text information, in coded or
                   clear form, for specifying the text value of a
                   clinical investigation as well as comments to the
                   clinical investigation and the investigation result
                   item.

0740               RFF, Reference
                   This segment keeps a reference to the 'parent'
                   clinical investigation result item if needed.


0750               Segment group 9: RSL-FTX-CCI
                   A group of segments giving the reference limits of
                   a clinical investigation result item.

0760                  RSL, Result
                      A segment for specifying the numerical reference
                      interval of an investigation result item and the
                      type of reference interval.

0770                  FTX, Free text
                      A segment with free text information, in coded
                      or clear form, for specifying the textual
                      reference limits of an investigation result
                      item.

0780                  CCI, Characteristic/class id
                      A segment for specifying a reference population,
                      e.g. age, sex, smokers, etc.


0790               Segment group 10:REL-RFF
                   A group of segments for identifying the persons
                   and/or organisations involved in producing an
                   investigation result item.

0800                  REL, Relationship
                      A segment for specifying the type of
                      relationship of a related healthcare service
                      provider to the clinical investigation result
                      item.

0810                  RFF, Reference
                      A segment for specifying a reference to
                      healthcare parties in segment group 1 where the
                      related healthcare professional or organisation
                      is identified.


0820            Segment group 11:CLI-SG12
                A group of segments for specifying a clinical
                intervention.

0830               CLI, Clinical intervention
                   A segment for specifying the type of intervention
                   and the intervention itself.


0840               Segment group 12:IMD-DSG-FTX-INP
                   A group of segments to describe interventions
                   involving drugs.

0850                  IMD, Item description
                      A segment for identifying a drug.

0860                  DSG, Dosage administration
                      A segment for specifying the dosage and
                      administration specifications of a drug.

0870                  FTX, Free text
                      A segment with free text information, in coded
                      or clear form, for specifying dosage and
                      administration specification of a drug.

0880                  INP, Parties and instruction
                      A segment for specifying the dosage regime.


0890         Segment group 13:SEQ-IMD-PRC-RFF-QTY-DTM-PAC-PTY-FTX-TDT-
                               HAN-LOC-ADR-SG14
             A group of segments containing information about the
             samples collected or to be collected concerning the
             requested investigation.

0900            SEQ, Sequence details
                A segment for allocating a sequence number to the
                sample to allow referencing from within this message
                to a specific sample.

0910            IMD, Item description
                A segment for specifying the characteristics of a
                sample like type of sample, anatomical origin and
                sample preservation material.

0920            PRC, Process identification
                A segment for specifying information about type of
                collection procedure and subsequent handling of the
                sample.

0930            RFF, Reference
                A segment for specifying the identification numbers of
                the actual sample allocated by service requester.
                
                This segment also keeps a reference to healthcare
                parties related to this actual sample such as the
                sample collector and sample collection location.
                
                This segment in addition keeps a reference to the
                "parent" sample if this sample is part of or derived
                from another sample.

0940            QTY, Quantity
                A segment for specifying information about sample
                volume or weight.

0950            DTM, Date/time/period
                A segment for specifying relevant dates and times
                concerning the sample such as start and/or end date
                and time or period for sample collection, etc.

0960            PAC, Package
                A segment specifying the number of sample containers
                this sample consists of.

0970            PTY, Priority
                A segment for specifying the sampling priority.

0980            FTX, Free text
                A segment with free text information, in coded or
                clear form, expressing the comments of the sample
                collector, the comments of the requester to the
                sample, anatomical origin of sample, sample location
                description, etc.

0990            TDT, Details of transport
                A segment for specifying the transport logistics of
                the collected sample.

1000            HAN, Handling instructions
                A segment for specifying sample handling warning.

1010            LOC, Place/location identification
                A segment for specifying the location for sample
                collection in terms of hospital ward, room and bed
                number.

1020            ADR, Address
                A segment for specifying the address for the sample
                collection.


1030            Segment group 14:CLI-IMD-DSG-DTM-FTX-QTY-INP
                A group of segments for specifying the pre-treatment
                performed relating to a sample.

1040               CLI, Clinical intervention
                   A segment for describing the pre-treatment
                   administered.

1050               IMD, Item description
                   A segment for specifying the substance administered
                   for pre-treatment.

1060               DSG, Dosage administration
                   A segment for specifying the route of
                   administration of the pre-treatment.

1070               DTM, Date/time/period
                   A segment for specifying relevant date and times
                   for the pre-treatment like start, end or duration
                   of administration.

1080               FTX, Free text
                   A segment with free text information, in coded or
                   clear form, for describing the pre-treatment.

1090               QTY, Quantity
                   A segment for specifying amount of substance
                   administered.

1100               INP, Parties and instruction
                   A segment for specifying dosage regime.


1110         Segment group 15:GIS-CCI-PTY-QTY-CIN-DTM-FTX-TEM-MOA-RFF-
                               HAN-SG16
             A group of segments for specifying a requested
             investigation.

1120            GIS, General indicator
                A segment for specifying the service type of the
                requested investigation, e.g. new investigation,
                changes to a previous requested investigation, etc.

1130            CCI, Characteristic/class id
                A segment for specifying the characteristics of the
                investigation. The characteristics may concern system,
                component or property examined, etc.

1140            PTY, Priority
                A segment for specifying the performing and reporting
                priority of the requested investigation.

1150            QTY, Quantity
                A segment for specifying the number of times to
                perform a requested investigation.

1160            CIN, Clinical information
                A segment for specifying the reason for request as a
                diagnosis.

1170            DTM, Date/time/period
                A segment for specifying date and times relevant for
                this requested investigation such as date and time of
                investigation request issued, investigation result due
                date and time, etc.

1180            FTX, Free text
                A segment with free text information, in coded or
                clear form, for specifying the reason for request,
                requester's comments as well as comments to the
                investigation itself.

1190            TEM, Test method
                A segment for specifying the reason for the requested
                investigation.

1200            MOA, Monetary amount
                A segment for specifying the type of cost, the amount
                of cost and possibly currency unit used concerning the
                investigation.

1210            RFF, Reference
                This segment keeps a reference to one or more samples
                related to this requested investigation such as the
                sample(s) involved in this investigation.

1220            HAN, Handling instructions
                A segment specifying the requested commenting level of
                detail concerning the requested investigation.


1230            Segment group 16:SCC-QTY-DTM-FTX
                A group of segments for specifying a standing
                requested investigation.

1240               SCC, Scheduling conditions
                   A segment for specifying the delivery plan.

1250               QTY, Quantity
                   A segment for specifying the number of times per
                   time interval a requested investigation should be
                   performed.

1260               DTM, Date/time/period
                   A segment for specifying the start and end date and
                   time for a requested investigation and the time
                   interval between each repetition.

1270               FTX, Free text
                   A segment with free text information, in coded or
                   clear form, for specifying the end-condition and
                   additional execution instructions of a standing
                   requested investigation.


1280   Segment group 17:AUT-DTM
       A group of segments for specifying authentication details.

1290      AUT, Authentication result
          A segment for specifying results of an authentication
          procedure.

1300      DTM, Date/time/period
          A segment for specifying the date and time for the validity
          of the authentication.

1310   UNT, Message trailer
       A service segment ending a message, giving the total number of
       segments in the message and the control reference number of the
       message.

4.2   Data segment index (Alphabetical sequence by tag)

          ADR Address
          ATT Attribute
          AUT Authentication result
          BGM Beginning of message
          CAV Characteristic value
          CCI Characteristic/class id
          CIN Clinical information
          CLI Clinical intervention
          COM Communication contact
          DOC Document/message details
          DSG Dosage administration
          DTM Date/time/period
          EMP Employment details
          FCA Financial charges allocation
          FTX Free text
          GIS General indicator
          HAN Handling instructions
          IMD Item description
          INP Parties and instruction
          IRQ Information required
          LAN Language
          LOC Place/location identification
          MOA Monetary amount
          NAT Nationality
          PAC Package
          PAS Attendance
          PDI Person demographic information
          PNA Party identification
          PRC Process identification
          PTY Priority
          QTY Quantity
          QUA Qualification
          REL Relationship
          RFF Reference
          RSL Result
          SCC Scheduling conditions
          SEQ Sequence details
          SPR Organisation classification details
          STS Status
          TDT Details of transport
          TEM Test method
          UNH Message header
          UNT Message trailer

Contents of MEDREQ