179370007: totale open mediale meniscectomie (verrichting)

SNOMED CT Concept\Procedure\...

\Surgical procedure (procedure)\Limb operation\Limb incision\Lower limb incision\Arthrotomy of knee\Operation on meniscus of the knee\Open operation on knee meniscus\Open meniscectomy\Open total meniscectomy of knee (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Limb operation\Limb incision\Lower limb incision\Arthrotomy of knee\Operation on meniscus of the knee\Open operation on knee meniscus\Open meniscectomy\Open medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Limb operation\Limb incision\Lower limb incision\Arthrotomy of knee\Operation on meniscus of the knee\Chondrectomy of semilunar cartilage of knee\Total medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Limb operation\Limb incision\Lower limb incision\Arthrotomy of knee\Operation on meniscus of the knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open total meniscectomy of knee (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Limb operation\Limb incision\Lower limb incision\Arthrotomy of knee\Operation on meniscus of the knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Limb operation\Surgical procedure on lower extremity (procedure)\Lower limb incision\Arthrotomy of knee\Operation on meniscus of the knee\Open operation on knee meniscus\Open meniscectomy\Open total meniscectomy of knee (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Limb operation\Surgical procedure on lower extremity (procedure)\Lower limb incision\Arthrotomy of knee\Operation on meniscus of the knee\Open operation on knee meniscus\Open meniscectomy\Open medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Limb operation\Surgical procedure on lower extremity (procedure)\Lower limb incision\Arthrotomy of knee\Operation on meniscus of the knee\Chondrectomy of semilunar cartilage of knee\Total medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Limb operation\Surgical procedure on lower extremity (procedure)\Lower limb incision\Arthrotomy of knee\Operation on meniscus of the knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open total meniscectomy of knee (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Limb operation\Surgical procedure on lower extremity (procedure)\Lower limb incision\Arthrotomy of knee\Operation on meniscus of the knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Limb operation\Surgical procedure on lower extremity (procedure)\Excision of lower extremity structure (procedure)\Arthrectomy of knee\Chondrectomy of semilunar cartilage of knee\Total medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Limb operation\Surgical procedure on lower extremity (procedure)\Excision of lower extremity structure (procedure)\Arthrectomy of knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open total meniscectomy of knee (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Limb operation\Surgical procedure on lower extremity (procedure)\Excision of lower extremity structure (procedure)\Arthrectomy of knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Limb operation\Surgical procedure on lower extremity (procedure)\Operative procedure on knee\Knee joint operation (procedure)\Arthrectomy of knee\Chondrectomy of semilunar cartilage of knee\Total medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Limb operation\Surgical procedure on lower extremity (procedure)\Operative procedure on knee\Knee joint operation (procedure)\Arthrectomy of knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open total meniscectomy of knee (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Limb operation\Surgical procedure on lower extremity (procedure)\Operative procedure on knee\Knee joint operation (procedure)\Arthrectomy of knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Limb operation\Surgical procedure on lower extremity (procedure)\Operative procedure on knee\Knee joint operation (procedure)\Arthrotomy of knee\Operation on meniscus of the knee\Open operation on knee meniscus\Open meniscectomy\Open total meniscectomy of knee (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Limb operation\Surgical procedure on lower extremity (procedure)\Operative procedure on knee\Knee joint operation (procedure)\Arthrotomy of knee\Operation on meniscus of the knee\Open operation on knee meniscus\Open meniscectomy\Open medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Limb operation\Surgical procedure on lower extremity (procedure)\Operative procedure on knee\Knee joint operation (procedure)\Arthrotomy of knee\Operation on meniscus of the knee\Chondrectomy of semilunar cartilage of knee\Total medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Limb operation\Surgical procedure on lower extremity (procedure)\Operative procedure on knee\Knee joint operation (procedure)\Arthrotomy of knee\Operation on meniscus of the knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open total meniscectomy of knee (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Limb operation\Surgical procedure on lower extremity (procedure)\Operative procedure on knee\Knee joint operation (procedure)\Arthrotomy of knee\Operation on meniscus of the knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Surgical removal\Excision\Excision of lower extremity structure (procedure)\Arthrectomy of knee\Chondrectomy of semilunar cartilage of knee\Total medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Surgical removal\Excision\Excision of lower extremity structure (procedure)\Arthrectomy of knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open total meniscectomy of knee (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Surgical removal\Excision\Excision of lower extremity structure (procedure)\Arthrectomy of knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Surgical removal\Excision\Musculoskeletal system excision\Excision of joint\Arthrectomy of knee\Chondrectomy of semilunar cartilage of knee\Total medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Surgical removal\Excision\Musculoskeletal system excision\Excision of joint\Arthrectomy of knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open total meniscectomy of knee (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Surgical removal\Excision\Musculoskeletal system excision\Excision of joint\Arthrectomy of knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Surgical removal\Excision\Musculoskeletal system excision\Chondrectomy\Chondrectomy of semilunar cartilage of knee\Total medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Surgical removal\Excision\Musculoskeletal system excision\Chondrectomy\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open total meniscectomy of knee (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Surgical removal\Excision\Musculoskeletal system excision\Chondrectomy\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Surgical procedure on skeletal system\Operative procedure on cartilage (procedure)\Operation on meniscus of the knee\Open operation on knee meniscus\Open meniscectomy\Open total meniscectomy of knee (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Surgical procedure on skeletal system\Operative procedure on cartilage (procedure)\Operation on meniscus of the knee\Open operation on knee meniscus\Open meniscectomy\Open medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Surgical procedure on skeletal system\Operative procedure on cartilage (procedure)\Operation on meniscus of the knee\Chondrectomy of semilunar cartilage of knee\Total medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Surgical procedure on skeletal system\Operative procedure on cartilage (procedure)\Operation on meniscus of the knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open total meniscectomy of knee (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Surgical procedure on skeletal system\Operative procedure on cartilage (procedure)\Operation on meniscus of the knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Surgical procedure on skeletal system\Operative procedure on cartilage (procedure)\Chondrectomy\Chondrectomy of semilunar cartilage of knee\Total medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Surgical procedure on skeletal system\Operative procedure on cartilage (procedure)\Chondrectomy\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open total meniscectomy of knee (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Surgical procedure on skeletal system\Operative procedure on cartilage (procedure)\Chondrectomy\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Surgical procedure on skeletal system\Operation on joint\Arthrotomy\Arthrotomy of knee\Operation on meniscus of the knee\Open operation on knee meniscus\Open meniscectomy\Open total meniscectomy of knee (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Surgical procedure on skeletal system\Operation on joint\Arthrotomy\Arthrotomy of knee\Operation on meniscus of the knee\Open operation on knee meniscus\Open meniscectomy\Open medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Surgical procedure on skeletal system\Operation on joint\Arthrotomy\Arthrotomy of knee\Operation on meniscus of the knee\Chondrectomy of semilunar cartilage of knee\Total medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Surgical procedure on skeletal system\Operation on joint\Arthrotomy\Arthrotomy of knee\Operation on meniscus of the knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open total meniscectomy of knee (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Surgical procedure on skeletal system\Operation on joint\Arthrotomy\Arthrotomy of knee\Operation on meniscus of the knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Surgical procedure on skeletal system\Operation on joint\Excision of joint\Arthrectomy of knee\Chondrectomy of semilunar cartilage of knee\Total medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Surgical procedure on skeletal system\Operation on joint\Excision of joint\Arthrectomy of knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open total meniscectomy of knee (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Surgical procedure on skeletal system\Operation on joint\Excision of joint\Arthrectomy of knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Surgical procedure on skeletal system\Operation on joint\Knee joint operation (procedure)\Arthrectomy of knee\Chondrectomy of semilunar cartilage of knee\Total medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Surgical procedure on skeletal system\Operation on joint\Knee joint operation (procedure)\Arthrectomy of knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open total meniscectomy of knee (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Surgical procedure on skeletal system\Operation on joint\Knee joint operation (procedure)\Arthrectomy of knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Surgical procedure on skeletal system\Operation on joint\Knee joint operation (procedure)\Arthrotomy of knee\Operation on meniscus of the knee\Open operation on knee meniscus\Open meniscectomy\Open total meniscectomy of knee (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Surgical procedure on skeletal system\Operation on joint\Knee joint operation (procedure)\Arthrotomy of knee\Operation on meniscus of the knee\Open operation on knee meniscus\Open meniscectomy\Open medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Surgical procedure on skeletal system\Operation on joint\Knee joint operation (procedure)\Arthrotomy of knee\Operation on meniscus of the knee\Chondrectomy of semilunar cartilage of knee\Total medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Surgical procedure on skeletal system\Operation on joint\Knee joint operation (procedure)\Arthrotomy of knee\Operation on meniscus of the knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open total meniscectomy of knee (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Surgical procedure on skeletal system\Operation on joint\Knee joint operation (procedure)\Arthrotomy of knee\Operation on meniscus of the knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Musculoskeletal system excision\Excision of joint\Arthrectomy of knee\Chondrectomy of semilunar cartilage of knee\Total medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Musculoskeletal system excision\Excision of joint\Arthrectomy of knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open total meniscectomy of knee (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Musculoskeletal system excision\Excision of joint\Arthrectomy of knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Musculoskeletal system excision\Chondrectomy\Chondrectomy of semilunar cartilage of knee\Total medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Musculoskeletal system excision\Chondrectomy\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open total meniscectomy of knee (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Musculoskeletal system excision\Chondrectomy\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Musculoskeletal system incision\Arthrotomy\Arthrotomy of knee\Operation on meniscus of the knee\Open operation on knee meniscus\Open meniscectomy\Open total meniscectomy of knee (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Musculoskeletal system incision\Arthrotomy\Arthrotomy of knee\Operation on meniscus of the knee\Open operation on knee meniscus\Open meniscectomy\Open medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Musculoskeletal system incision\Arthrotomy\Arthrotomy of knee\Operation on meniscus of the knee\Chondrectomy of semilunar cartilage of knee\Total medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Musculoskeletal system incision\Arthrotomy\Arthrotomy of knee\Operation on meniscus of the knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open total meniscectomy of knee (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Operation on musculoskeletal system\Musculoskeletal system incision\Arthrotomy\Arthrotomy of knee\Operation on meniscus of the knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Incision\Limb incision\Lower limb incision\Arthrotomy of knee\Operation on meniscus of the knee\Open operation on knee meniscus\Open meniscectomy\Open total meniscectomy of knee (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Incision\Limb incision\Lower limb incision\Arthrotomy of knee\Operation on meniscus of the knee\Open operation on knee meniscus\Open meniscectomy\Open medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Incision\Limb incision\Lower limb incision\Arthrotomy of knee\Operation on meniscus of the knee\Chondrectomy of semilunar cartilage of knee\Total medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Incision\Limb incision\Lower limb incision\Arthrotomy of knee\Operation on meniscus of the knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open total meniscectomy of knee (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Incision\Limb incision\Lower limb incision\Arthrotomy of knee\Operation on meniscus of the knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Incision\Musculoskeletal system incision\Arthrotomy\Arthrotomy of knee\Operation on meniscus of the knee\Open operation on knee meniscus\Open meniscectomy\Open total meniscectomy of knee (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Incision\Musculoskeletal system incision\Arthrotomy\Arthrotomy of knee\Operation on meniscus of the knee\Open operation on knee meniscus\Open meniscectomy\Open medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Incision\Musculoskeletal system incision\Arthrotomy\Arthrotomy of knee\Operation on meniscus of the knee\Chondrectomy of semilunar cartilage of knee\Total medial meniscectomy (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Incision\Musculoskeletal system incision\Arthrotomy\Arthrotomy of knee\Operation on meniscus of the knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open total meniscectomy of knee (procedure)\Open total medial meniscectomy
\Surgical procedure (procedure)\Incision\Musculoskeletal system incision\Arthrotomy\Arthrotomy of knee\Operation on meniscus of the knee\Chondrectomy of semilunar cartilage of knee\Open meniscectomy\Open medial meniscectomy (procedure)\Open total medial meniscectomy

Status: current, Sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jan 2002. Module: SNOMED CT core

Descriptions:

Expanded Value Set

Outbound Relationships	Type	Target	Active	Characteristic	Refinability	Group	Values
Open total medial meniscectomy	Is a	Open medial meniscectomy (procedure)	true	Inferred relationship	Some
Open total medial meniscectomy	Extent	Total	false	Inferred relationship	Some
Open total medial meniscectomy	Access	Open approach	false	Inferred relationship	Some	2
Open total medial meniscectomy	Procedure site	Entire medial meniscus (body structure)	false	Inferred relationship	Some	1
Open total medial meniscectomy	Method	Division - action	false	Inferred relationship	Some
Open total medial meniscectomy	Method	Excision - action (qualifier value)	false	Inferred relationship	Some	1
Open total medial meniscectomy	Procedure site - Direct (attribute)	Entire medial meniscus (body structure)	true	Inferred relationship	Some	1
Open total medial meniscectomy	Procedure site - Direct (attribute)	Medial meniscus structure (body structure)	false	Inferred relationship	Some	2
Open total medial meniscectomy	Method	Excision - action (qualifier value)	true	Inferred relationship	Some	1
Open total medial meniscectomy	Method	Excision - action (qualifier value)	false	Inferred relationship	Some	2
Open total medial meniscectomy	Method	Incision - action	true	Inferred relationship	Some	3
Open total medial meniscectomy	Procedure site - Direct (attribute)	Knee joint structure (body structure)	true	Inferred relationship	Some	3
Open total medial meniscectomy	Is a	Open total meniscectomy of knee (procedure)	true	Inferred relationship	Some
Open total medial meniscectomy	Access	Open approach	true	Inferred relationship	Some	1
Open total medial meniscectomy	Is a	Total medial meniscectomy (procedure)	true	Inferred relationship	Some

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
277584012	Open total medial meniscectomy	en	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core
562383019	Open total medial meniscectomy (procedure)	en	Fully specified name	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core
1982071000146116	totale open mediale meniscectomie (verrichting)	nl	Fully specified name	Active	Entire term case insensitive (core metadata concept)	SNOMED CT Netherlands NRC maintained module (core metadata concept)
2438251000146110	totale open mediale meniscectomie	nl	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	SNOMED CT Netherlands NRC maintained module (core metadata concept)
2438261000146113	volledige open mediale meniscectomie	nl	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	SNOMED CT Netherlands NRC maintained module (core metadata concept)