SNOMED CT is a comprehensive clinical health terminology that allows for precise capture of clinical data. It has a long history originating from earlier clinical terminology systems. SNOMED CT components include concepts, descriptions in multiple languages, and relationships that connect concepts in a polyhierarchical structure. Using SNOMED CT terminology in an electronic medical record system provides benefits like more granular clinical data capture, robust clinical analytics, and clinical decision support that can be applied across healthcare organizations internationally.

1. By-
SHEFALI
SNOMED CT (Project Nurse)
AIIMS, New Delhi

2. Systematized Nomenclature Of Medicine –
Clinical Terms
SNOMED CT

3. Content overview
 SNOMED CT
 HISTORY OF SNOMED CT
 SNOMED CT COMPONENTS
 About refset
 BENEFITS OF SNOMED CT
7/13/2017

4. ???????
• SNOMED CT is the most comprehensive and
precise clinical health terminology product in
the world, owned and distributed around the
world by SNOMED International.
• SNOMED CT has been is accepted as a
common global language for health terms.

5. 5
Systematized
Nomenclature of
Pathology (SNOP)
1965 CAP
Broad clinical terms
included (SNOMED)
1975 CAP
Logic based
SNOMED-RT
2000 CAP
Read codes1980s NHS UK
Read codes v3
Clinical Terms v3
CTV3
1990s NHS UK
SNOMED-CT2007 IHTSDO
India became a member
of theIHTSDO
2014
SNOMED-CT2002
CAP
NHS UK
US UK

6. 7/13/2017

7. Most of us own smartphones…
7

8. Now imagine
the uses if you
remove
internet
connectivity
Voice calls
SMS
Camera
A few games
This is what we use them for
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9. AN EMR ALONE IS LIKE A ‘DUMB’
PHONE
SNOMED CT IS THE INTERNET OF EMRS
It connects healthcare data across all entities
+
Allows very granular clinical data capture
Provides very powerful clinical analytics
It supports clinical decision support
… and is used in over 50 countries. It is the best clinical terminology
system today
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10. 7/13/2017

11. ICD-10 SNOMED CT
ICD-10 has five codes (terms) only(ECTOPIC
PREGNENCY -Abdominal,Tubal,Ovarian
,Others Unspecified)
VARIOUS CODES (Abdominal pregnancy,
Aborted ectopic pregnancy, Angular pregnancy
, Cervical pregnancy, Combined heterotopic
pregnancy, Combined pregnancy,Combined
intrauterine and ovarian pregnancy, Combined
tubal and intrauterine pregnancy and more.
Multiple ‘ancestors’
ICD is running out of codes & Multiple
disorders are being grouped under one code. No sharing of codes by two different conditions
Let us see how it is better than existing
healthcare coding systems ?????

12. Comparison of existing coding systems
Coding
system
ICD-10 ICD-10 PCS LOINC NANDA CPT4 SNOMED CT
Diagnosis Yes No No Partial No Yes
Procedures
/ operations
No (except
pregnancy
related)
Yes No No Yes Yes
Laboratory No No Yes No No Yes
Nursing No No No Yes No Yes
Special
context (e.g
not
diabetic)
No No No No No Yes
Meaning
based
analytics
No No No No No Yes
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13. These are four different conditions (clinical
ideas)
1. Ischemic heart disease
2. Angina
3. Unstable angina
4. Myocardial infarction
5. Heart attack
6. Cardiac infarction
7. MI
Same clinical meaning
(idea)
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Each clinical idea is called a
concept

14. Each concept has a random concept number
1. Ischemic heart disease 414545008
2. Angina 194828000
3. Unstable angina 4557003
4. Myocardial infarction
5. Heart attack
6. Cardiac infarction
7. MI
Same clinical meaning (idea)
22298006
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15. The same concept has different translations
1. Ischemic heart disease 414545008 - cardiopatía
isquémica
2. Angina 194828000 - angina de pecho
3. Unstable angina 4557003 - síndrome preinfarto
4. Myocardial infarction
5. Heart attack
6. Cardiac infarction
7. MI
Same clinical meaning (idea)
22298006 - infarto de miocardio
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16. Independent system of classification
Concept Concept ID
Ischaemic Heart Disease 414545008
Angina 194828000
Unstable Angina 4557003
Myocardial Infarction 22298006
Heart Attack 22298006
Cardiac Infarction 22298006
MI 22298006
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17. Viral pneumonia
Infectious
disease of lung
Lower
respiratory tract
infection
Disorder of lung
Disease
Viral infection
Infective
pneumonia
Viral respiratory
infection
Viral disease
Infectious
disease
Poly-hierarchy
17
Lungdisorders
Infections

18. Thus…
• Each clinical idea is a concept and has a unique
concept number
• Each concept number has multiple terms for it
• In different languages…
• There is no limit on the number of concepts.
Hence different conditions do not have to share
the same code
• Concepts are connected to other concepts
(parents / children) independent of their codes –
multiple relationships
• There are other relationships also, defining
different properties of a concept 18

19. HOW DOES IT WORK?
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21. REFSETS

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23. BENEFITS

24. The hospital’s EMR software Snomed CT
Record services (EMR) Terminology services (Snomed CT)
Patient Ram Lal, age 56, admitted with
a diagnosis of
Herni
Hernia
Inguinal hernia
Indirect inguinal hernia
Indirect inguinal hernia with
obstruction
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How is it used in a hospital’s EMR?

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27. Summary
• Snomed CT is the terminology that supports
the EMR. On its own it does nothing
• It is very clinician friendly
• It is multilingual
• It allows very powerful data analytics
• It augments decision support capabilities of an
EMR
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