12205271000119109: Infection of right clavicle associated with internal fixation device (disorder)

SNOMED CT Concept\Clinical finding (finding)\...

\Device finding (finding)\Complication associated with device (disorder)\...

\Infection associated with device\Infection associated with orthopaedic device\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Infection associated with device\Infection associated with implant (disorder)\Infection associated with musculoskeletal implant\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Infection associated with device\Infection associated with implant (disorder)\Infection associated with musculoskeletal implant\Infection of bone associated with bone fixation device\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)

\Complication associated with orthopaedic device\Infection associated with orthopaedic device\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Complication associated with orthopaedic device\Complication of internal fixation device\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)

\Complication of implant\Infection associated with implant (disorder)\Infection associated with musculoskeletal implant\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Complication of implant\Infection associated with implant (disorder)\Infection associated with musculoskeletal implant\Infection of bone associated with bone fixation device\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Complication of implant\Complication associated with musculoskeletal implant\Infection associated with musculoskeletal implant\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Complication of implant\Complication associated with musculoskeletal implant\Infection associated with musculoskeletal implant\Infection of bone associated with bone fixation device\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Complication of implant\Complication associated with musculoskeletal implant\Complication of internal fixation device\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)

\Finding of limb structure\Disorder of limb (disorder)\Disorder of upper limb (disorder)\Disorder of right upper extremity (disorder)\Infection of right clavicle associated with internal fixation device (disorder)
\Finding of limb structure\Disorder of limb (disorder)\Disorder of upper limb (disorder)\Disorder of shoulder region (disorder)\Infection of bone of shoulder girdle (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Finding of limb structure\Finding of upper limb\Postprocedural finding of upper limb\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Finding of limb structure\Finding of upper limb\Finding of bone of upper limb\Infection of bone of shoulder girdle (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Finding of limb structure\Finding of upper limb\Finding of bone of upper limb\Finding of clavicle structure\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Finding of limb structure\Finding of upper limb\Disorder of upper limb (disorder)\Disorder of right upper extremity (disorder)\Infection of right clavicle associated with internal fixation device (disorder)
\Finding of limb structure\Finding of upper limb\Disorder of upper limb (disorder)\Disorder of shoulder region (disorder)\Infection of bone of shoulder girdle (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Finding of limb structure\Finding of upper limb\Finding of shoulder region\Finding of clavicle structure\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Finding of limb structure\Finding of upper limb\Finding of shoulder region\Disorder of shoulder region (disorder)\Infection of bone of shoulder girdle (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)

\Finding of trunk structure\Finding of upper trunk (finding)\Disorder of thoracic segment of trunk\Disorder of thorax (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Finding of trunk structure\Finding of upper trunk (finding)\Finding of region of thorax\Finding of clavicle structure\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Finding of trunk structure\Finding of upper trunk (finding)\Finding of region of thorax\Disorder of thorax (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Finding of trunk structure\Disorder of trunk (disorder)\Disorder of thoracic segment of trunk\Disorder of thorax (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)

\Procedure related finding\Perioperative complication\Postoperative complication (disorder)\Postoperative infection\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Procedure related finding\Perioperative complication\Postoperative complication (disorder)\Postoperative infection\Infection of bone associated with bone fixation device\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Procedure related finding\Postprocedural state finding\Disorder following clinical procedure\Infection following procedure (disorder)\Postoperative infection\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Procedure related finding\Postprocedural state finding\Disorder following clinical procedure\Infection following procedure (disorder)\Postoperative infection\Infection of bone associated with bone fixation device\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Procedure related finding\Postprocedural state finding\Disorder following clinical procedure\Disorder of musculoskeletal system following procedure (disorder)\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Procedure related finding\Postprocedural state finding\Disorder following clinical procedure\Disorder of musculoskeletal system following procedure (disorder)\Infection of bone associated with bone fixation device\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Procedure related finding\Postprocedural state finding\Disorder following clinical procedure\Postoperative complication (disorder)\Postoperative infection\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Procedure related finding\Postprocedural state finding\Disorder following clinical procedure\Postoperative complication (disorder)\Postoperative infection\Infection of bone associated with bone fixation device\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Procedure related finding\Postprocedural state finding\Postprocedural finding of upper limb\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Procedure related finding\Postprocedural state finding\Postoperative state\Postoperative complication (disorder)\Postoperative infection\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Procedure related finding\Postprocedural state finding\Postoperative state\Postoperative complication (disorder)\Postoperative infection\Infection of bone associated with bone fixation device\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)

\Musculoskeletal finding\Bone finding\Finding of bone of upper limb\Infection of bone of shoulder girdle (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Musculoskeletal finding\Bone finding\Finding of bone of upper limb\Finding of clavicle structure\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Musculoskeletal finding\Bone finding\Disorder of bone (disorder)\Infection of bone\Infection of bone of shoulder girdle (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Musculoskeletal finding\Bone finding\Disorder of bone (disorder)\Infection of bone\Infection of bone associated with bone fixation device\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Musculoskeletal finding\Disorder of musculoskeletal system\Disorder of musculoskeletal system following procedure (disorder)\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Musculoskeletal finding\Disorder of musculoskeletal system\Disorder of musculoskeletal system following procedure (disorder)\Infection of bone associated with bone fixation device\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Musculoskeletal finding\Disorder of musculoskeletal system\Musculoskeletal infective disorder (disorder)\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Musculoskeletal finding\Disorder of musculoskeletal system\Musculoskeletal infective disorder (disorder)\Infection of bone\Infection of bone of shoulder girdle (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Musculoskeletal finding\Disorder of musculoskeletal system\Musculoskeletal infective disorder (disorder)\Infection of bone\Infection of bone associated with bone fixation device\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Musculoskeletal finding\Disorder of musculoskeletal system\Disorder of skeletal system\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Musculoskeletal finding\Disorder of musculoskeletal system\Disorder of skeletal system\Disorder of bone (disorder)\Infection of bone\Infection of bone of shoulder girdle (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Musculoskeletal finding\Disorder of musculoskeletal system\Disorder of skeletal system\Disorder of bone (disorder)\Infection of bone\Infection of bone associated with bone fixation device\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)

\Disease\Disorder of joint region\Disorder of shoulder region (disorder)\Infection of bone of shoulder girdle (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Perioperative complication\Postoperative complication (disorder)\Postoperative infection\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Perioperative complication\Postoperative complication (disorder)\Postoperative infection\Infection of bone associated with bone fixation device\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Complication associated with device (disorder)\Infection associated with device\Infection associated with orthopaedic device\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Complication associated with device (disorder)\Infection associated with device\Infection associated with implant (disorder)\Infection associated with musculoskeletal implant\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Complication associated with device (disorder)\Infection associated with device\Infection associated with implant (disorder)\Infection associated with musculoskeletal implant\Infection of bone associated with bone fixation device\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Complication associated with device (disorder)\Complication associated with orthopaedic device\Infection associated with orthopaedic device\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Complication associated with device (disorder)\Complication associated with orthopaedic device\Complication of internal fixation device\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Complication associated with device (disorder)\Complication of implant\Infection associated with implant (disorder)\Infection associated with musculoskeletal implant\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Complication associated with device (disorder)\Complication of implant\Infection associated with implant (disorder)\Infection associated with musculoskeletal implant\Infection of bone associated with bone fixation device\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Complication associated with device (disorder)\Complication of implant\Complication associated with musculoskeletal implant\Infection associated with musculoskeletal implant\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Complication associated with device (disorder)\Complication of implant\Complication associated with musculoskeletal implant\Infection associated with musculoskeletal implant\Infection of bone associated with bone fixation device\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Complication associated with device (disorder)\Complication of implant\Complication associated with musculoskeletal implant\Complication of internal fixation device\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Disorder of body wall (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Disorder of body system\Disorder of musculoskeletal system\Disorder of musculoskeletal system following procedure (disorder)\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Disorder of body system\Disorder of musculoskeletal system\Disorder of musculoskeletal system following procedure (disorder)\Infection of bone associated with bone fixation device\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Disorder of body system\Disorder of musculoskeletal system\Musculoskeletal infective disorder (disorder)\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Disorder of body system\Disorder of musculoskeletal system\Musculoskeletal infective disorder (disorder)\Infection of bone\Infection of bone of shoulder girdle (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Disorder of body system\Disorder of musculoskeletal system\Musculoskeletal infective disorder (disorder)\Infection of bone\Infection of bone associated with bone fixation device\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Disorder of body system\Disorder of musculoskeletal system\Disorder of skeletal system\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Disorder of body system\Disorder of musculoskeletal system\Disorder of skeletal system\Disorder of bone (disorder)\Infection of bone\Infection of bone of shoulder girdle (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Disorder of body system\Disorder of musculoskeletal system\Disorder of skeletal system\Disorder of bone (disorder)\Infection of bone\Infection of bone associated with bone fixation device\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Disorder following clinical procedure\Infection following procedure (disorder)\Postoperative infection\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Disorder following clinical procedure\Infection following procedure (disorder)\Postoperative infection\Infection of bone associated with bone fixation device\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Disorder following clinical procedure\Disorder of musculoskeletal system following procedure (disorder)\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Disorder following clinical procedure\Disorder of musculoskeletal system following procedure (disorder)\Infection of bone associated with bone fixation device\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Disorder following clinical procedure\Postoperative complication (disorder)\Postoperative infection\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Disorder following clinical procedure\Postoperative complication (disorder)\Postoperative infection\Infection of bone associated with bone fixation device\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Disorder of prostheses and implants\Complication of implant\Infection associated with implant (disorder)\Infection associated with musculoskeletal implant\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Disorder of prostheses and implants\Complication of implant\Infection associated with implant (disorder)\Infection associated with musculoskeletal implant\Infection of bone associated with bone fixation device\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Disorder of prostheses and implants\Complication of implant\Complication associated with musculoskeletal implant\Infection associated with musculoskeletal implant\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Disorder of prostheses and implants\Complication of implant\Complication associated with musculoskeletal implant\Infection associated with musculoskeletal implant\Infection of bone associated with bone fixation device\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Disorder of prostheses and implants\Complication of implant\Complication associated with musculoskeletal implant\Complication of internal fixation device\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Disorder of limb (disorder)\Disorder of upper limb (disorder)\Disorder of right upper extremity (disorder)\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Disorder of limb (disorder)\Disorder of upper limb (disorder)\Disorder of shoulder region (disorder)\Infection of bone of shoulder girdle (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Disorder of trunk (disorder)\Disorder of thoracic segment of trunk\Disorder of thorax (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Infectious disease\Infection following procedure (disorder)\Postoperative infection\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Infectious disease\Infection following procedure (disorder)\Postoperative infection\Infection of bone associated with bone fixation device\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Infectious disease\Infection associated with device\Infection associated with orthopaedic device\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Infectious disease\Infection associated with device\Infection associated with implant (disorder)\Infection associated with musculoskeletal implant\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Infectious disease\Infection associated with device\Infection associated with implant (disorder)\Infection associated with musculoskeletal implant\Infection of bone associated with bone fixation device\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Infectious disease\Musculoskeletal infective disorder (disorder)\Infection associated with internal fixation device (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Infectious disease\Musculoskeletal infective disorder (disorder)\Infection of bone\Infection of bone of shoulder girdle (disorder)\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)
\Disease\Infectious disease\Musculoskeletal infective disorder (disorder)\Infection of bone\Infection of bone associated with bone fixation device\Infection of clavicle associated with internal fixation device\Infection of right clavicle associated with internal fixation device (disorder)

Status: current, Sufficiently defined by necessary conditions definition status (core metadata concept). Date: 01-Apr 2024. Module: SNOMED CT core

Descriptions:

Id Description Lang Type Status Case? Module

5305383019 Infection associated with internal fixation device of right clavicle en Synonym (core metadata concept) Active Entire term case insensitive (core metadata concept) SNOMED CT core

5305384013 Infection of right clavicle associated with internal fixation device en Synonym (core metadata concept) Active Entire term case insensitive (core metadata concept) SNOMED CT core

5305385014 Infection of right clavicle associated with internal fixation device (disorder) en Fully specified name Active Entire term case insensitive (core metadata concept) SNOMED CT core

5306088010 Right clavicle infection associated with internal fixation device en Synonym (core metadata concept) Active Entire term case insensitive (core metadata concept) SNOMED CT core

Expanded Value Set

Outbound Relationships	Type	Target	Active	Characteristic	Refinability	Group	Values
Infection of right clavicle associated with internal fixation device (disorder)	Is a	Disorder of right upper extremity (disorder)	true	Inferred relationship	Some
Infection of right clavicle associated with internal fixation device (disorder)	Associated with	Orthopedic internal fixation system	true	Inferred relationship	Some	3
Infection of right clavicle associated with internal fixation device (disorder)	Finding site	Bone structure of right clavicle (body structure)	true	Inferred relationship	Some	1
Infection of right clavicle associated with internal fixation device (disorder)	Pathological process (attribute)	Infectious process (qualifier value)	true	Inferred relationship	Some	1
Infection of right clavicle associated with internal fixation device (disorder)	Is a	Infection of clavicle associated with internal fixation device	true	Inferred relationship	Some
Infection of right clavicle associated with internal fixation device (disorder)	After	Internal fixation of right clavicle (procedure)	true	Inferred relationship	Some	2

Inbound Relationships

Type

Active

Source

Characteristic

Refinability

Group

This concept is not in any reference sets

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Id	Description	Lang	Type	Status	Case?	Module
5305383019	Infection associated with internal fixation device of right clavicle	en	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core
5305384013	Infection of right clavicle associated with internal fixation device	en	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core
5305385014	Infection of right clavicle associated with internal fixation device (disorder)	en	Fully specified name	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core
5306088010	Right clavicle infection associated with internal fixation device	en	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core