EN ISO 11073-10101:2005

SLOVENSKI STANDARD
01-november-2005
Zdravstvena informatika – Komunikacija medicinskih naprav na mestu oskrbe –
10101. del: Nomenklatura (ISO/IEEE 11073-10101:2004)
Health informatics - Point-of-care medical device communication - Part 10101:
Nomenclature (ISO/IEEE 11073-10101:2004)
Medizinische Informatik - Kommunikation patientennaher medizinischer Geräte - Teil
10101: Nomenklatur
Informatique de santé - Communication entre dispositifs médicaux sur le site des soins -
Partie 10101: Nomenclature (ISO/IEEE 11073-10101:2004)
Ta slovenski standard je istoveten z: EN ISO 11073-10101:2005
ICS:
35.240.80 Uporabniške rešitve IT v IT applications in health care
zdravstveni tehniki technology
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 11073-10101
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2005
ICS 35.240.80; 01.040.35
English Version
Health informatics - Point-of-care medical device communication
- Part 10101: Nomenclature (ISO/IEEE 11073-10101:2004)
Informatique de santé - Communication entre dispositifs Medizinische Informatik - Kommunikation patientennaher
médicaux sur le site des soins - Partie 10101: medizinischer Geräte - Teil 10101: Nomenklatur
Nomenclature (ISO/IEEE 11073-10101:2004)
This European Standard was approved by CEN on 16 August 2005.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Central Secretariat or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11073-10101:2005: E
worldwide for CEN national Members.

Foreword
The text of ISO/IEEE 11073-10101:2004 has been prepared by Technical Committee ISO/TC
215 "Health informatics” of the International Organization for Standardization (ISO) and has
been taken over as EN ISO 11073-10101:2005 by Technical Committee CEN/TC 251 "Health
informatics", the secretariat of which is held by NEN.

This European Standard shall be given the status of a national standard, either by publication of
an identical text or by endorsement, at the latest by February 2006, and conflicting national
standards shall be withdrawn at the latest by February 2006.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,
Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

Endorsement notice
The text of ISO/IEEE 11073-10101:2004 has been approved by CEN as EN ISO 11073-
10101:2005 without any modifications.

INTERNATIONAL
ISO/IEEE
STANDARD
11073-10101
First edition
2004-12-15
Health informatics — Point-of-care
medical device communication —
Part 10101:
Nomenclature
Informatique de santé — Communication entre dispositifs médicaux sur le
site des soins —
Partie 10101: Nomenclature
Reference number
ISO/IEEE 11073-10101:2004(E)
© ISO/IEEE 2004
ISO/IEEE 11073-10101:2004(E)
Health informatics — Point-of-care
medical device communication —
Part 10101:
Nomenclature
Sponsor
™
IEEE 1073 Standard Committee
of the
IEEE Engineering in Medicine and Biology Society
Approved 24 June 2004
IEEE-SA Standards Board
ISO/IEEE 11073-10101:2004(E)
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Abstract: Within the context of the ISO/IEEE 11073 family of standards for point-of-care (POC) medical
device communication (MCD), this standard provides the nomenclature that supports both the domain infor-
mation model and service model components of the standards family, as well as the semantic content
exchanged with medical devices. The nomenclature is specialized for patient vital signs information represen-
tation and medical device informatics, with major areas including concepts for electrocardiograph (ECG),
haemodynamics, respiration, blood gas, urine, fluid-related metrics, and neurology, as well as specialized
units of measurement, general device events, alarms, and body sites. The standard defines both the architec-
ture and major components of the nomenclature, along with extensive definitions for each conceptual area.

Keywords: codes, information model, medical device communication, nomenclature, ontology, patient,
point-of-care, POC, semantics, service model, terminology
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ISO/IEEE 11073-10101:2004(E)
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ISO/IEEE 11073-10101:2004(E)
iv Copyright © 2004 ISO/IEEE. All rights reserved.

ISO/IEEE 11073-10101:2004(E)
ISO Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee has
been established has the right to be represented on that committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates
closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical
standardization.
Draft International Standards adopted by the technical committees are circulated to the member bodies for
voting. Publication as an International Standard requires approval by at least 75% of the member bodies
casting a vote.
A pilot project between ISO and the IEEE has been formed to develop and maintain a group of ISO/IEEE
standards in the field of medical devices as approved by Council resolution 43/2000. Under this pilot
project, IEEE is responsible for the development and maintenance of these standards with participation and
input from ISO member bodies.
Attention is drawn to the possibility that some of the elements of this International Standard may be the
subject of patent rights. Neither ISO nor the IEEE shall be held responsible for identifying any or all such
patent rights.
ISO/IEEE 11073-10101:2004(E) was prepared by IEEE 1073 Committee of the IEEE Engineering in
Medicine and Biology Society.
ISO/IEEE 11073-10101:2004(E)
IEEE Introduction
This introduction is not part of ISO/IEEE 11073-10101:2004(E), Health informatics — Point-of-care medical device
communication — Part 10101: Nomenclature.
ISO/IEEE 11073 standards enable communication between medical devices and external computer systems.
They provide automatic and detailed electronic data capture of patient vital signs information and device
operational data. The primary goals are to:
— Provide real-time plug-and-play interoperability for patient-connected medical devices
— Facilitate the efficient exchange of vital signs and medical device data, acquired at the point-of-care,
in all health care environments
“Real-time” means that data from multiple devices can be retrieved, time correlated, and displayed or
processed in fractions of a second. “Plug-and-play” means that all the clinician has to do is make the
connection — the systems automatically detect, configure, and communicate without any other human
interaction.
“Efficient exchange of medical device data” means that information that is captured at the point-of-care
(e.g., patient vital signs data) can be archived, retrieved, and processed by many different types of
applications without extensive software and equipment support, and without needless loss of information.
The standards are especially targeted at acute and continuing care devices, such as patient monitors,
ventilators, infusion pumps, ECG devices, etc. They comprise a family of standards that can be layered
together to provide connectivity optimized for the specific devices being interfaced.
Notice to users
Patents
Attention is called to the possibility that implementation of this standard may require use of subject matter
covered by patent rights. By publication of this standard, no position is taken with respect to the existence or
validity of any patent rights in connection therewith. The IEEE shall not be responsible for identifying
patents or patent applications for which a license may be required by to implement an IEEE standard or for
conducting inquiries into the legal validity or scope of those patents that are brought to its attention.
Errata
Errata, if any, for this and all other standards can be accessed at the following URL: http://
standards.ieee.org/reading/ieee/updates/errata/index.html. Users are encouraged to check this URL for
errata periodically.
Interpretations
Current interpretations can be accessed at the following URL: http://standards.ieee.org/reading/ieee/interp/
index.html.
vi Copyright © 2004 ISO/IEEE. All rights reserved.

ISO/IEEE 11073-10101:2004(E)
Participants
At the time this standard was completed, the working group of the IEEE 1073 Standard Committee had the
following membership:
Todd H. Cooper, Chair
Michael Krämer
Wolfgang Bleicher Paul Rubel
Francis Cantraine
Alberto Macerata Lief Rystrøm
Mats Cardell Simon Meij Paul Schluter
Thomas Norgall
Michael Flötotto Michael Spicer
Ken Fuchs Thomas Penzel Lars Steubesand
Kai Hassing Francesco Pinciroli Alpo Värri
Melvin Reynolds
Gunther Hellmann Jan Wittenber
Jörg Kampmann Angelo Rossi Mori Paul Woolman
Ron Kirkham Christoph Zywietz
The following members of the individual balloting committee voted on this standard. Balloters may have
voted for approval, disapproval, or abstention.
Thomas Canup John Grider Melvin Reynolds
Michael Chilbert Kai Hassing Michael Spicer
Keith Chow Tom Kannally Richard Schrenker
Todd H. Cooper Robert Kennelly M. Michael Shabot
Grace Esche Randall Krohn Lars Steubesand
Kenneth Fuchs Yeou-Song Lee Gin-shu Young
Daniel Nowicki
When the IEEE-SA Standards Board approved this standard on 24 June 2004, it had the following
membership:
Don Wright, Chair
Steve M. Mills, Vice Chair
Judith Gorman, Secretary
Chuck Adams Mark S. Halpin Paul Nikolich
Stephen Berger Raymond Hapeman T. W. Olsen
Richard J. Holleman Ronald C. Petersen
Mark D. Bowman
Gary S. Robinson
Joseph A. Bruder Richard H. Hulett
Frank Stone
Bob Davis Lowell G. Johnson
Malcolm V. Thaden
Joseph L. Koepfinger*
Roberto de Marca Boisson
Doug Topping
Hermann Koch
Julian Forster*
Joe D. Watson
Thomas J. McGean
Arnold M. Greenspan
Daleep C. Mohla
*Member Emeritus
Also included are the following nonvoting IEEE-SA Standards Board liaisons:
Satish K. Aggarwal, NRC Representative
Richard DeBlasio, DOE Representative
Alan Cookson, NIST Representative
Don Messina
IEEE Standards Project Editor
ISO/IEEE 11073-10101:2004(E)
Contents
1. Scope. 1
2. Conformance. 1
3. Normative references. 1
4. Terms and definitions . 2
5. Symbols (and abbreviated terms) . 2
6. Application. 4
7. Semantics . 4
7.1 Attribution. 5
7.2 Coding. 5
7.2.1 Context-sensitivity. 6
7.2.2 Grouping . 7
8. Syntax . 7
8.1 Transfer. 7
8.1.1 Types. 7
8.1.2 Notation . 8
8.2 Programmatic. 8
8.2.1 Attribution. 8
8.2.2 Notation . 9
9. Extensibility . 10
10. Version exporting . 10
Annex A (normative) Nomenclature semantics. 11
A.1 Overview of nomenclature for vital signs—semantics. 11
A.1.1 Introduction. 11
A.2 Code assignment to the MDIB elements . 12
A.2.1 Overview. 12
A.2.2 Basic rules.12
A.2.3 Coding spaces . 13
A.3 Data dictionary and codes for object-oriented modeling elements (Block A) . 18
A.3.1 Introduction. 18
A.3.2 Object-oriented modeling elements: inventory tables . 19
A.4 Data dictionary and codes for communication infrastructure (Block G). 42
A.4.1 Communication infrastructure: inventory tables . 42
A.5 Nomenclature, data dictionary, and codes for vital signs devices (Block A). 47
A.5.1 Introduction. 47
A.5.2 Base concepts. 48
A.5.3 First set of differentiating criteria . 48
A.5.4 Second set of differentiating criteria. 49
A.5.5 Third set of differentiating criteria. 49
viii Copyright © 2004 ISO/IEEE. All rights reserved.

ISO/IEEE 11073-10101:2004(E)
A.5.6 Attributes .50
A.5.7 Code table . 50
A.6 Terminology and codes for units of measurement (Block B). 59
A.6.1 Introduction. 59
A.6.2 Orders of magnitude discriminator. 59
A.6.3 Units outside of SI . 60
A.6.4 Units of measurement . 60
A.7 Nomenclature, data dictionary, and codes for metrics (measurements and
enumerations) (Block C). 76
A.7.1 Nomenclature for ECG measurements . 76
A.7.2 Nomenclature for ECG enumerations. 93
A.7.3 Nomenclature, data dictionary, and codes for haemodynamic
monitoring measurements. 102
A.7.4 Nomenclature, data dictionary, and codes for respiratory measurements . 118
A.7.5 Nomenclature, data dictionary, and codes for common blood-gas, blood,
urine, and other fluid chemistry measurements. 150
A.7.6 Nomenclature, data dictionary, and codes for fluid output measurements. 157
A.7.7 Nomenclature, data dictionary, and codes for pumps. 161
A.7.8 Nomenclature, data dictionary, and codes for neurological monitoring
measurements. 177
A.7.9 Nomenclature, data dictionary, and codes for neurophysiologic enumerations . 190
A.7.10 Nomenclature, data dictionary, and codes for stimulation modes. 217
A.7.11 Nomenclature, data dictionary, and codes for miscellaneous measurements. 224
A.8 Nomenclature, data dictionary, and codes for body sites (Block D) . 228
A.8.1 Introduction. 228
A.8.2 Sites for neurophysiological signal monitoring: locations near peripheral nerves 228
A.8.3 Sites for neurophysiological signal monitoring: locations near muscles. 244
A.8.4 Sites for EEG-electrode placement on the head . 287
A.8.5 Sites for EOG signal monitoring . 294
A.8.6 Sites for general neurological monitoring measurements and drainage. 299
A.8.7 Sites for cardiovascular measurements. 301
A.8.8 Miscellaneous sites used in vital signs monitoring and measurement. 307
A.8.9 Qualifiers of body site locations . 322
A.9 Nomenclature, data dictionary, and codes for alerts (Block E) . 326
A.9.1 Introduction. 326
A.9.2 Diagnostic pattern events. 326
A.9.3 Device-related and environment-related events . 334
A.10 Nomenclature, data dictionary, and codes for external nomenclatures and messaging
standards (Block F). 357
A.10.1 Introduction. 357
A.10.2 Base concepts. 357
A.10.3 First set of differentiating criteria . 357
A.10.4 Second set of differentiating criteria. 358
A.10.5 Third set of differentiating criteria. 358
A.10.6 Code table . 358
Annex B (normative) Nomenclature syntax . 363
B.1 General . 363
B.1.1 Notation . 363
B.1.2 Partition codes. 363
B.1.3 Discriminator ranges. 364
B.2 Object infrastructure . 364
B.3 Medical supervisory control and data acquisition (SCADA) . 396
ISO/IEEE 11073-10101:2004(E)
B.4 Events . 442
B.5 Dimensions . 458
B.6 Virtual attributes . 467
B.7 Parameter groups . 467
B.8 Body Sites . 467
B.9 Communication infrastructure . 483
B.10 External nomenclature . 486
Annex C (informative) Bibliography. 489
x Copyright © 2004 ISO/IEEE. All rights reserved.

Health informatics — Point-of-care
medical device communication —
Part 10101:
Nomenclature
1. Scope
The scope of this standard is nomenclature architecture for point-of-care (POC) medical device communica-
tion (MDC). It consists of three parts: the body of the standard, which defines the overall architecture of the
organization and relationships among nomenclature components; normative Annex A and Annex B, which
provide specifications of semantics and syntaxes, respectively; and informative Annex C, the bibliography.
This standard is intended for use within the context of IEEE Std 1073, which sets out the relationship
between this and other documents in the POC MDC series.
2. Conformance
There are no particular implementation conformance requirements defined in this standard, but some
requirements for nomenclature representation are established in this standard to guide specification of
semantics and syntax in other parts of the overall standard.
3. Normative references
The following normative documents contain provisions that, through reference in this text, constitute provi-
sions of ISO/IEEE 11073-10101. For dated references, subsequent amendments to, or revisions of, any of
these publications do not apply. However, parties to agreements based on ISO/IEEE 11073-10101 are
encouraged to investigate the possibility of applying the most recent editions of the normative documents
indicated below. For undated references, the latest edition of the normative document referred to applies.
Members of ISO and IEC maintain registers of currently valid international standards.
Information on references can be found in Clause 3.
ISO/IEEE 11073-10101:2004(E) HEALTH INFORMATICS — POINT-OF-CARE MEDICAL DEVICE COMMUNICATION
CEN ENV 12611, Medical Informatics — Categorical structure of systems of concepts — Medical
Devices.
IEEE Std 1073™, IEEE Standard for Medical Device Communications—Overview and Framework.
ISO/IEC 8824 (all parts), Information technology — Abstract Syntax Notation One (ASN.1).
ISO/IEC 8825 (all parts), Information technology —ASN.1 encoding rules.
ISO/IEC 9596-1, Information technology — Open systems interconnection — Common Management Infor-
mation Protocol — Part 1: Specification.
ISO/IEEE 11073-10201, Health informatics — Point-of-care medical device communication — Part 10201:
Domain information model (referred to hereinafter as the “DIM”).
ISO/IEEE 11073-20101, Health informatics — Point-of-care medical device communication — Part 20101:
Application profiles – Base standard.
4. Terms and definitions
For the purposes of this standard, the following terms and definitions apply. The Authoritative Dictionary of
IEEE Standards Terms, Seventh Edition, [B10] should be referenced for terms not defined in this clause.
4.1 corollary: a semantic and a syntactical representation that are correlated by a unique code.
4.2 -tuple: a component of a relation; e.g., a 2-tuple has two relational components.
4.3 unique: nonredundant.
5. Symbols (and abbreviated terms)
API application program interface
ASN.1 Abstract Syntax Notation One (ISO/IEC 8824)
BAEP brainstem acoustic evoked potential
BCC bedside communication controller
BER basic encoding rules (ISO/IEC 8825-1).
CMDISE communication medical device information service element (CEN ENV 13735
[B5])
CMIP Common Management Information Protocol (ISO/IEC 9596-1)
CMIP* Common Management Information Protocol using ISO/IEEE 11073 MDDL/
MDER
CNS central nervous system
CEN publications are available from the European Committee for Standardization (CEN), 36, rue de Stassart, B-1050 Brussels, Bel-
gium (http://www.cenorm.be).
IEEE publications are available from the Institute of Electrical and Electronics Engineers, Inc., 445 Hoes Lane, Piscataway, NJ 08854,
USA (http://www.standards.ieee.org/).
ISO/IEC documents can be obtained from the ISO office, 1 rue de Varembé, Case Postale 56, CH-1211, Genève 20, Switzerland/
Suisse (http://www.iso.ch/) and from the IEC office, 3 rue de Varembé, Case Postale 131, CH-1211, Genève 20, Switzerland/Suisse
(http://www.iec.ch/). ISO/IEC publications are also available in the United States from the Sales Department, American National Stan-
dards Institute, 25 West 43rd Street, 4th Floor, New York, NY 10036, USA (http://www.ansi.org/).
The numbers in brackets correspond to the numbers of the bibliography in Annex C.
2 Copyright © 2004 ISO/IEEE. All rights reserved.

PART 10101: NOMENCLATURE ISO/IEEE 11073-10101:2004(E)
CSF cerebrospinal fluid
CVS cardiovascular system
DCC device communication controller
DIM domain information model, as defined in vital signs information representation
(VITAL), interoperability of patient-connected medical devices (INTERMED),
and medical device data language (MDDL) (ISO/IEEE 11073-10201 )
ECG electrocardiogram or electrocardiograph
ECoG electrocochleograph
EEG electroencephalogram or electroencephalograph
EMG electromyogram or electromyograph
EOG electrooculogram
ERG electroretinogram or electroretinograph
FEF file exchange format (CEN/TC251/PT-40 [B7])
FFT fast Fourier transform
FSM finite state machine
®7
HL7 Health Level Seven
ICU intensive care unit
ID identifier
INTERMED interoperability of patient-connected medical devices (CEN ENV 13735 [B5])
LLAEP long latency acoustic evoked potential
MDAP medical device application profile (The acronym MDAP may be substituted for the
phrase ISO/IEEE 11073-20000 family of standards.”)
MDC medical device communication
MDDL medical device data language (The acronym MDDL may be substituted for the
phrase ISO/IEEE 11073-10000 family of standards.”)
MDER medical device encoding rules, as defined in medical device application profile
(MDAP)
MDIB medical data information base, as defined in ISO/IEEE 11073-10201
MDS medical device system, an abstraction for a medical device (ISO/IEEE 11073-
10201)
MIB management information base
MLAEP middle latency acoustic evoked potential
NCS nerve conductens study
NOS not otherwise specified
OO object-oriented
OID object identifier
PCA patient-controlled analgesia
PDU protocol data unit (also referred to as a message; by convention, the term PDUs is
used in text to indicate multiplicity)
PFC physiological function code, which represents a physiological concept such as
heart rate, blood pressure, etc.
POC point of care or point-of-care
SCADA supervisory control and data acquisition
SCO service and control object
The DIM was originally defined in CEN ENV 13734 [B4] and CEN ENV 13735 [B5], which are now superseded by ISO/IEEE
11073-10201.
HL7 is a registered trademark of Health Level Seven, Inc. (www.hl7.org).
ISO/IEEE 11073-10101:2004(E) HEALTH INFORMATICS — POINT-OF-CARE MEDICAL DEVICE COMMUNICATION
SCP-ECG Standard Communications Protocol for Computer-Assisted Electrocardiography
(CEN ENV 1064 [B1])
SEP somatosensory evoked potential (also systolic ejection period in the context of
haemodynamic monitoring measurements)
®8
SNOMED Systematized Nomenclature of Medicine
VEP visual evoked potential
VMD virtual medical device; an abstraction of a medical device modality; e.g., a vital
signs monitor medical device system (MDS) might comprise electrocardiogram
(ECG), blood pressure, temperature, and other related VMDs (ISO/IEEE 11073-
10201)
VMO virtual medical object (ISO/IEEE 11073-10201)
VMS virtual medical system (ISO/IEEE 11073-10201)
VITAL vital signs information representation (CEN ENV 13734 [B4])
0x hexadecimal encoding; e.g., the notation 0x0001 implies a 16-bit code with a deci-
mal value of 1
6. Application
Nomenclature in this standard is primarily intended to be used in protocol data units (PDUs) as values of
fields, typically object-oriented attributes, which specify particular alternatives among a related semantic
set. The following are the most common field types.
— Managed object class ID, e.g., MDS [medical device system], VMS [virtual medical system], VMD
[virtual medical device], VMO [virtual medical object], Channel, Metric, Alert, Scanner, SCO [ser-
vice and control object], etc.
— Event type ID, e.g., a numerical observation type of event report.
— Attribute ID: various attributes in the domain information model (DIM)
— Type ID: in general, a concept not covered by a class definition per se, but by a well-known or
commonly used type of a class, e.g., a VMD (e.g., ventilator, gas analyzer), Metric object class
physiological function code (PFC) (e.g., heart rate, cerebral profusion pressure), or the body
site of a measurement (e.g., left toe).
— State: mode, status or finite state machine (FSM) state, e.g., associated.
— Dimension: unit of measurement, e.g., deciliters per hour [dl/h].
— Indication: alarm, e.g., asystole, INOP (e.g., malfunction), or advisory (e.g., check
calibration).
— Action type ID, e.g., activate.
— External nomenclature ID, e.g., Systematized Nomenclature for Medicine (SNOMED).
Technically, information is initially defined in an abstract syntax, e.g., Abstract Syntax Notation One
(ASN.1) or medical device data language (MDDL), and then mapped to and interchanged through a transfer
syntax, e.g., basic encoding rules (BER) or medical device encoding rules (MDER), typically for efficiency
in the form of integers. However, abstract syntax languages are generally unsuitable for high-precision
human understanding, especially of medical terms. As a result, both semantic and syntactical definitions are
needed; as covered in Clause 7 and Clause 8.
7. Semantics
Clause 7 establishes specification guidelines. Refer to Annex A for the detailed specification.
SNOMED is a registered trademark of the College of American Pathologists; Norfield, IL; (800) 323-4040 (http://www.cap.org).
4 Copyright © 2004 ISO/IEEE. All rights reserved.

PART 10101: NOMENCLATURE ISO/IEEE 11073-10101:2004(E)
7.1 Attribution
Nomenclature semantics are represented as a set of attributes, as shown in Table 1.
Table 1—Nomenclature attributes
Attribute Description/Definition Purpose Interpretability Presence
Systematic, An organization of differ- Formal or semiformal but Shall be Manda-
or DIM entiating, relational human-readable derivation unambiguous tory
name descriptors; see Table 2
and Table 3
Common A brief description of the Human-readable identifica- Should be Optional
term name tion or efficient lookup unambiguous
Acronym An abbreviated form of the Mnemonic or parametric Should be Optional
name abbreviation unambiguous
Description/ A long, or sentence, form Human-readable and as Shall be unambigu- Manda-
Definition of the name understandable as possible ous with the excep- tory
tion of synonyms
Reference ID A symbolic, programmatic Development of application Shall be Manda-
form of the term program interfaces (APIs) unambiguous tory
Code [Alpha]numeric identifier Human- and machine-read- Shall be unique, but Manda-
able and efficiently process- context-sensitive tory
able by machines parts are permitted;
see 7.2
Others As appropriate for the semantic and as specified
...