SNOMED-CT???

1
SNOMED-CT???
2
???????

• SNOMED-CT???1?????????????????????????????????????
  
• SNOMED-CT??????3?????????
• 1)????? (Fully Specified Name)
• 2)???(Preferred)
• 3)???(Synonym)

3
?????
?????
??
incontinence of feces (finding)
?????
incontinence of feces
???
bowel incontinence
???
involuntary stool
???
bowels incontinent
???
4
Kind????

• SNOMED-CT????????????????????????????2????????
• ????????????aspirin???????????kind??????Aspirin
  (substance)??Aspirin (product)???????

5
??Language??
Description
Language
Concept
??
??
???

??
Chair
Seat

????
Stuhl

6
?????
??(Concept)
??(Concept)
7
??(Relationship)
IS-A
IS-A
??????????????? ????????!!
8
IS-A?????????
??
IS-A
IS-A
???
???
IS-A
IS-A
IS-A
???
???
???
J.J.Cimino.Practical Considerations for Choosing
Terminologies in Health Care Applications. AMIA
2003 Symposium Tutorial
9
SNOMED-CT???

• ????????SNOMED CT Concept????????????????????

SNOMED CT Concept
?? Finding
?? Disease
?? Procedure

19??????

• ???????????????????????????????????????????19?????
  ?????????????????????

10
?(Entire face)?????
SNOMED CT Concept
body structure
anatomical concepts
physical anatomical entity
anatomical structure
body region structure
surface region
body part structure
upper body structure
body surface region
upper body part structure
head and neck structure
head structure
face and neck structure
head part
region of head
face structure
surface region of head
entire face
11
Strict Hierarchy?Polyhierarchy
??
???
???
???
???
???
J.J.Cimino.Practical Considerations for Choosing
Terminologies in Health Care Applications. AMIA
2003 Symposium Tutorial
12
?????
???????
???????
is-a
is-a
??????? ??
13
???????
??
???????
???????
?????????
??
??
??????? ????
???
?
??
14
??C?????
???????
????
???????????
?????
C???
?????????
??C???
???is-a??
15
????
???????
???is-a??
????????????
?????
????
?????
????? ??????????
16
????
???????
????????????
is-a
is-a
????? ??????????
Has-procedure-site
Has-method
?????
????
17
SNOMED-CT????????
Descriptions Table
Concepts Table
Description ID Concept ID Term
Concept ID
Relationships Table
Relationship ID Concept ID1 RelationshipType
Concept ID2
????????????
18
Concept?Term???
Concepts Table
Concept ID
123
Description ID Concept ID Term
9876 123 ??
9877 123 ??
9878 123 Chair
Descriptions Table
19
?????
???????????is a ??????????
Relationship ID Concept ID1 Relationship Type ConceptID2
98787 123 654 38
Concept ID
123
654
38
Description ID Concept ID Term
9876 123 ??
8776 654 is a
5567 38 ??
20
????? Pressure sore on sacrum (disorder)

• ????? (Is a)
• ??? Decubitus ulcer ?
• ????? Injury of back ?
• ????? Injury of integument ?
• ?????????????? Disease of skin AND/OR
  subcutaneous tissue of trunk ?
• ?? (Finding site)
• ????????? Skin structure of sacral region?
• ????? Skin structure?
• ?? (Course)
• ??? Chronic?
• ????? (Associated morphology)
• ????? Chronic ulcer?
• ?????? Crushing injury?

21
?? (Defining)??? (Qualifier)

• ?????????? (Defining)????? (Qualifier)????2???????
  ?
• ?????????????????????????? (Defining)?????????????
  ?????????? (Qualifier)???????

22
??????Qualifier

• ???(Onset)
• ????? Sudden onset?
• ?????? Gradual onset?
• ???(Severity)
• ???? Severities?
• ?????(Episodicity)
• ?????? Episodicities?

23
?? (Defining)??? (Qualifier)
??
??
?????
????????
?????
??
????
????
Defining Relation
?????
Qualifier Relation
???
?????
????
?????
???
?????
???
24
????

• Pre-Coordinated Term (??????)
• ???????????????
• ?????(ID12)???(23)??(44)
• Post-Coordinated Term (?????)
• ??????????????????????????
• ???????(???) ??(5)???(23)??(44)