274162005: Thoracic back sprain (disorder)

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

\Finding by site\Finding of body region\Disorder of joint region\Arthropathy (disorder)\Disorder of joint of spine (disorder)\Traumatic arthropathy of the spine (disorder)\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Finding of body region\Disorder of joint region\Arthropathy (disorder)\Traumatic arthropathy\Traumatic arthropathy of the spine (disorder)\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Finding of body region\Disorder of joint region\Arthropathy (disorder)\Traumatic arthropathy\Joint injury\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Finding of body region\Finding of back (finding)\Finding of spinal region\Disorder of spinal region (disorder)\Traumatic injury of vertebral region of back (disorder)\Spinal injury\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Finding of body region\Finding of back (finding)\Finding of spinal region\Disorder of spinal region (disorder)\Traumatic injury of vertebral region of back (disorder)\Spinal injury\Injury of thoracic spine\Thoracic back sprain
\Finding by site\Finding of body region\Finding of back (finding)\Finding of spinal region\Disorder of spinal region (disorder)\Disorder of vertebral column (disorder)\Disorder of joint of spine (disorder)\Traumatic arthropathy of the spine (disorder)\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Finding of body region\Finding of back (finding)\Finding of spinal region\Disorder of spinal region (disorder)\Disorder of vertebral column (disorder)\Disorder of thoracic spine\Injury of thoracic spine\Thoracic back sprain
\Finding by site\Finding of body region\Finding of back (finding)\Finding of spinal region\Vertebral column finding\Disorder of vertebral column (disorder)\Disorder of joint of spine (disorder)\Traumatic arthropathy of the spine (disorder)\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Finding of body region\Finding of back (finding)\Finding of spinal region\Vertebral column finding\Disorder of vertebral column (disorder)\Disorder of thoracic spine\Injury of thoracic spine\Thoracic back sprain
\Finding by site\Finding of body region\Finding of back (finding)\Finding of spinal region\Vertebral column finding\Finding of thoracic spine\Lesion of thoracic spine\Injury of thoracic spine\Thoracic back sprain
\Finding by site\Finding of body region\Finding of back (finding)\Finding of spinal region\Vertebral column finding\Finding of thoracic spine\Disorder of thoracic spine\Injury of thoracic spine\Thoracic back sprain
\Finding by site\Finding of body region\Finding of back (finding)\Disorder of back\Traumatic and/or non-traumatic injury of back (disorder)\Traumatic injury of vertebral region of back (disorder)\Spinal injury\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Finding of body region\Finding of back (finding)\Disorder of back\Traumatic and/or non-traumatic injury of back (disorder)\Traumatic injury of vertebral region of back (disorder)\Spinal injury\Injury of thoracic spine\Thoracic back sprain
\Finding by site\Finding of body region\Finding of back (finding)\Disorder of back\Disorder of spinal region (disorder)\Traumatic injury of vertebral region of back (disorder)\Spinal injury\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Finding of body region\Finding of back (finding)\Disorder of back\Disorder of spinal region (disorder)\Traumatic injury of vertebral region of back (disorder)\Spinal injury\Injury of thoracic spine\Thoracic back sprain
\Finding by site\Finding of body region\Finding of back (finding)\Disorder of back\Disorder of spinal region (disorder)\Disorder of vertebral column (disorder)\Disorder of joint of spine (disorder)\Traumatic arthropathy of the spine (disorder)\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Finding of body region\Finding of back (finding)\Disorder of back\Disorder of spinal region (disorder)\Disorder of vertebral column (disorder)\Disorder of thoracic spine\Injury of thoracic spine\Thoracic back sprain
\Finding by site\Finding of body region\Finding of trunk structure\Finding of upper trunk (finding)\Disorder of thoracic segment of trunk\Disorder of thoracic spine\Injury of thoracic spine\Thoracic back sprain
\Finding by site\Finding of body region\Finding of trunk structure\Finding of upper trunk (finding)\Finding of thoracic spine\Lesion of thoracic spine\Injury of thoracic spine\Thoracic back sprain
\Finding by site\Finding of body region\Finding of trunk structure\Finding of upper trunk (finding)\Finding of thoracic spine\Disorder of thoracic spine\Injury of thoracic spine\Thoracic back sprain
\Finding by site\Finding of body region\Finding of trunk structure\Disorder of trunk (disorder)\Disorder of thoracic segment of trunk\Disorder of thoracic spine\Injury of thoracic spine\Thoracic back sprain
\Finding by site\Finding of body region\Finding of trunk structure\Disorder of trunk (disorder)\Disorder of soft tissue of trunk\Thoracic back sprain
\Finding by site\Finding of body region\Finding of trunk structure\Disorder of trunk (disorder)\Injury of trunk\Injury of thoracic spine\Thoracic back sprain
\Finding by site\Finding of body region\Joint finding\Arthropathy (disorder)\Disorder of joint of spine (disorder)\Traumatic arthropathy of the spine (disorder)\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Finding of body region\Joint finding\Arthropathy (disorder)\Traumatic arthropathy\Traumatic arthropathy of the spine (disorder)\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Finding of body region\Joint finding\Arthropathy (disorder)\Traumatic arthropathy\Joint injury\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Finding of body region\Joint finding\Lesion of joint\Joint injury\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\General finding of soft tissue\Ligament finding\Disorder of ligament\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\General finding of soft tissue\Disorder of soft tissue\Disorder of soft tissue of trunk\Thoracic back sprain
\Finding by site\General finding of soft tissue\Disorder of soft tissue\Soft tissue lesion\Soft tissue injury\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\General finding of soft tissue\Disorder of soft tissue\Disorder of ligament\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Disorder by body site (disorder)\Disorder of joint region\Arthropathy (disorder)\Disorder of joint of spine (disorder)\Traumatic arthropathy of the spine (disorder)\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Disorder by body site (disorder)\Disorder of joint region\Arthropathy (disorder)\Traumatic arthropathy\Traumatic arthropathy of the spine (disorder)\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Disorder by body site (disorder)\Disorder of joint region\Arthropathy (disorder)\Traumatic arthropathy\Joint injury\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Disorder by body site (disorder)\Disorder of body system\Disorder of musculoskeletal system\Musculoskeletal and connective tissue disorder (disorder)\Disorder of ligament\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Disorder by body site (disorder)\Disorder of body system\Disorder of musculoskeletal system\Injury of musculoskeletal system\Joint injury\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Disorder by body site (disorder)\Disorder of body system\Disorder of musculoskeletal system\Disorder of skeletal system\Arthropathy (disorder)\Disorder of joint of spine (disorder)\Traumatic arthropathy of the spine (disorder)\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Disorder by body site (disorder)\Disorder of body system\Disorder of musculoskeletal system\Disorder of skeletal system\Arthropathy (disorder)\Traumatic arthropathy\Traumatic arthropathy of the spine (disorder)\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Disorder by body site (disorder)\Disorder of body system\Disorder of musculoskeletal system\Disorder of skeletal system\Arthropathy (disorder)\Traumatic arthropathy\Joint injury\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Disorder by body site (disorder)\Disorder of trunk (disorder)\Disorder of thoracic segment of trunk\Disorder of thoracic spine\Injury of thoracic spine\Thoracic back sprain
\Finding by site\Disorder by body site (disorder)\Disorder of trunk (disorder)\Disorder of soft tissue of trunk\Thoracic back sprain
\Finding by site\Disorder by body site (disorder)\Disorder of trunk (disorder)\Injury of trunk\Injury of thoracic spine\Thoracic back sprain
\Finding by site\Disorder by body site (disorder)\Disorder of connective tissue (disorder)\Injury of connective tissue (disorder)\Ligament injury\Sprain of ligament (disorder)\Sprain of ligament of trunk (disorder)\Thoracic back sprain
\Finding by site\Disorder by body site (disorder)\Disorder of connective tissue (disorder)\Injury of connective tissue (disorder)\Ligament injury\Sprain of ligament (disorder)\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Disorder by body site (disorder)\Disorder of connective tissue (disorder)\Musculoskeletal and connective tissue disorder (disorder)\Disorder of ligament\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Disorder by body site (disorder)\Disorder of back\Traumatic and/or non-traumatic injury of back (disorder)\Traumatic injury of vertebral region of back (disorder)\Spinal injury\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Disorder by body site (disorder)\Disorder of back\Traumatic and/or non-traumatic injury of back (disorder)\Traumatic injury of vertebral region of back (disorder)\Spinal injury\Injury of thoracic spine\Thoracic back sprain
\Finding by site\Disorder by body site (disorder)\Disorder of back\Disorder of spinal region (disorder)\Traumatic injury of vertebral region of back (disorder)\Spinal injury\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Disorder by body site (disorder)\Disorder of back\Disorder of spinal region (disorder)\Traumatic injury of vertebral region of back (disorder)\Spinal injury\Injury of thoracic spine\Thoracic back sprain
\Finding by site\Disorder by body site (disorder)\Disorder of back\Disorder of spinal region (disorder)\Disorder of vertebral column (disorder)\Disorder of joint of spine (disorder)\Traumatic arthropathy of the spine (disorder)\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Disorder by body site (disorder)\Disorder of back\Disorder of spinal region (disorder)\Disorder of vertebral column (disorder)\Disorder of thoracic spine\Injury of thoracic spine\Thoracic back sprain
\Finding by site\Disorder by body site (disorder)\Disorder of soft tissue\Disorder of soft tissue of trunk\Thoracic back sprain
\Finding by site\Disorder by body site (disorder)\Disorder of soft tissue\Soft tissue lesion\Soft tissue injury\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Disorder by body site (disorder)\Disorder of soft tissue\Disorder of ligament\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Musculoskeletal finding\Ligament finding\Disorder of ligament\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Musculoskeletal finding\Joint finding\Arthropathy (disorder)\Disorder of joint of spine (disorder)\Traumatic arthropathy of the spine (disorder)\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Musculoskeletal finding\Joint finding\Arthropathy (disorder)\Traumatic arthropathy\Traumatic arthropathy of the spine (disorder)\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Musculoskeletal finding\Joint finding\Arthropathy (disorder)\Traumatic arthropathy\Joint injury\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Musculoskeletal finding\Joint finding\Lesion of joint\Joint injury\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Musculoskeletal finding\Disorder of musculoskeletal system\Musculoskeletal and connective tissue disorder (disorder)\Disorder of ligament\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Musculoskeletal finding\Disorder of musculoskeletal system\Injury of musculoskeletal system\Joint injury\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Musculoskeletal finding\Disorder of musculoskeletal system\Disorder of skeletal system\Arthropathy (disorder)\Disorder of joint of spine (disorder)\Traumatic arthropathy of the spine (disorder)\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Musculoskeletal finding\Disorder of musculoskeletal system\Disorder of skeletal system\Arthropathy (disorder)\Traumatic arthropathy\Traumatic arthropathy of the spine (disorder)\Sprain of spinal ligament\Thoracic back sprain
\Finding by site\Musculoskeletal finding\Disorder of musculoskeletal system\Disorder of skeletal system\Arthropathy (disorder)\Traumatic arthropathy\Joint injury\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain

\Disease\Traumatic AND/OR non-traumatic injury (disorder)\Traumatic and/or non-traumatic injury of back (disorder)\Traumatic injury of vertebral region of back (disorder)\Spinal injury\Sprain of spinal ligament\Thoracic back sprain
\Disease\Traumatic AND/OR non-traumatic injury (disorder)\Traumatic and/or non-traumatic injury of back (disorder)\Traumatic injury of vertebral region of back (disorder)\Spinal injury\Injury of thoracic spine\Thoracic back sprain
\Disease\Traumatic AND/OR non-traumatic injury (disorder)\Traumatic injury (disorder)\Traumatic injury of vertebral region of back (disorder)\Spinal injury\Sprain of spinal ligament\Thoracic back sprain
\Disease\Traumatic AND/OR non-traumatic injury (disorder)\Traumatic injury (disorder)\Traumatic injury of vertebral region of back (disorder)\Spinal injury\Injury of thoracic spine\Thoracic back sprain
\Disease\Traumatic AND/OR non-traumatic injury (disorder)\Traumatic injury (disorder)\Sprain of ligament (disorder)\Sprain of ligament of trunk (disorder)\Thoracic back sprain
\Disease\Traumatic AND/OR non-traumatic injury (disorder)\Traumatic injury (disorder)\Sprain of ligament (disorder)\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Disease\Traumatic AND/OR non-traumatic injury (disorder)\Traumatic injury (disorder)\Traumatic arthropathy\Traumatic arthropathy of the spine (disorder)\Sprain of spinal ligament\Thoracic back sprain
\Disease\Traumatic AND/OR non-traumatic injury (disorder)\Traumatic injury (disorder)\Traumatic arthropathy\Joint injury\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Disease\Traumatic AND/OR non-traumatic injury (disorder)\Injury of connective tissue (disorder)\Ligament injury\Sprain of ligament (disorder)\Sprain of ligament of trunk (disorder)\Thoracic back sprain
\Disease\Traumatic AND/OR non-traumatic injury (disorder)\Injury of connective tissue (disorder)\Ligament injury\Sprain of ligament (disorder)\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Disease\Traumatic AND/OR non-traumatic injury (disorder)\Soft tissue injury\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Disease\Traumatic AND/OR non-traumatic injury (disorder)\Injury of musculoskeletal system\Joint injury\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Disease\Traumatic AND/OR non-traumatic injury (disorder)\Injury of trunk\Injury of thoracic spine\Thoracic back sprain
\Disease\Disorder by body site (disorder)\Disorder of joint region\Arthropathy (disorder)\Disorder of joint of spine (disorder)\Traumatic arthropathy of the spine (disorder)\Sprain of spinal ligament\Thoracic back sprain
\Disease\Disorder by body site (disorder)\Disorder of joint region\Arthropathy (disorder)\Traumatic arthropathy\Traumatic arthropathy of the spine (disorder)\Sprain of spinal ligament\Thoracic back sprain
\Disease\Disorder by body site (disorder)\Disorder of joint region\Arthropathy (disorder)\Traumatic arthropathy\Joint injury\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Disease\Disorder by body site (disorder)\Disorder of body system\Disorder of musculoskeletal system\Musculoskeletal and connective tissue disorder (disorder)\Disorder of ligament\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Disease\Disorder by body site (disorder)\Disorder of body system\Disorder of musculoskeletal system\Injury of musculoskeletal system\Joint injury\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Disease\Disorder by body site (disorder)\Disorder of body system\Disorder of musculoskeletal system\Disorder of skeletal system\Arthropathy (disorder)\Disorder of joint of spine (disorder)\Traumatic arthropathy of the spine (disorder)\Sprain of spinal ligament\Thoracic back sprain
\Disease\Disorder by body site (disorder)\Disorder of body system\Disorder of musculoskeletal system\Disorder of skeletal system\Arthropathy (disorder)\Traumatic arthropathy\Traumatic arthropathy of the spine (disorder)\Sprain of spinal ligament\Thoracic back sprain
\Disease\Disorder by body site (disorder)\Disorder of body system\Disorder of musculoskeletal system\Disorder of skeletal system\Arthropathy (disorder)\Traumatic arthropathy\Joint injury\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Disease\Disorder by body site (disorder)\Disorder of trunk (disorder)\Disorder of thoracic segment of trunk\Disorder of thoracic spine\Injury of thoracic spine\Thoracic back sprain
\Disease\Disorder by body site (disorder)\Disorder of trunk (disorder)\Disorder of soft tissue of trunk\Thoracic back sprain
\Disease\Disorder by body site (disorder)\Disorder of trunk (disorder)\Injury of trunk\Injury of thoracic spine\Thoracic back sprain
\Disease\Disorder by body site (disorder)\Disorder of connective tissue (disorder)\Injury of connective tissue (disorder)\Ligament injury\Sprain of ligament (disorder)\Sprain of ligament of trunk (disorder)\Thoracic back sprain
\Disease\Disorder by body site (disorder)\Disorder of connective tissue (disorder)\Injury of connective tissue (disorder)\Ligament injury\Sprain of ligament (disorder)\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Disease\Disorder by body site (disorder)\Disorder of connective tissue (disorder)\Musculoskeletal and connective tissue disorder (disorder)\Disorder of ligament\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Disease\Disorder by body site (disorder)\Disorder of back\Traumatic and/or non-traumatic injury of back (disorder)\Traumatic injury of vertebral region of back (disorder)\Spinal injury\Sprain of spinal ligament\Thoracic back sprain
\Disease\Disorder by body site (disorder)\Disorder of back\Traumatic and/or non-traumatic injury of back (disorder)\Traumatic injury of vertebral region of back (disorder)\Spinal injury\Injury of thoracic spine\Thoracic back sprain
\Disease\Disorder by body site (disorder)\Disorder of back\Disorder of spinal region (disorder)\Traumatic injury of vertebral region of back (disorder)\Spinal injury\Sprain of spinal ligament\Thoracic back sprain
\Disease\Disorder by body site (disorder)\Disorder of back\Disorder of spinal region (disorder)\Traumatic injury of vertebral region of back (disorder)\Spinal injury\Injury of thoracic spine\Thoracic back sprain
\Disease\Disorder by body site (disorder)\Disorder of back\Disorder of spinal region (disorder)\Disorder of vertebral column (disorder)\Disorder of joint of spine (disorder)\Traumatic arthropathy of the spine (disorder)\Sprain of spinal ligament\Thoracic back sprain
\Disease\Disorder by body site (disorder)\Disorder of back\Disorder of spinal region (disorder)\Disorder of vertebral column (disorder)\Disorder of thoracic spine\Injury of thoracic spine\Thoracic back sprain
\Disease\Disorder by body site (disorder)\Disorder of soft tissue\Disorder of soft tissue of trunk\Thoracic back sprain
\Disease\Disorder by body site (disorder)\Disorder of soft tissue\Soft tissue lesion\Soft tissue injury\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain
\Disease\Disorder by body site (disorder)\Disorder of soft tissue\Disorder of ligament\Sprain of joint\Sprain of spinal ligament\Thoracic back sprain

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

Descriptions:

Id	Description	Lang	Type	Status	Case?	Module	Reference Sets
409930017	Thoracic back sprain	en	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core	GB English: Preferred (foundation metadata concept)
666888017	Thoracic back sprain (disorder)	en	Fully specified name	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core	GB English: Preferred (foundation metadata concept)
942621000052116	distorsion i bröstryggen	sv	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	SNOMED CT Sweden NRC maintained module (core metadata concept)	Swedish [International Organization for Standardization 639-1 code sv] language reference set (foundation metadata concept): Preferred (foundation metadata concept)

Expanded Value Set

Outbound Relationships	Type	Target	Active	Characteristic	Refinability	Group	Values
Thoracic back sprain	Is a	Disorder of thorax (disorder)	false	Inferred relationship	Some
Thoracic back sprain	Is a	Disorder of bone (disorder)	false	Inferred relationship	Some
Thoracic back sprain	Is a	Back sprain	false	Inferred relationship	Some
Thoracic back sprain	Is a	Injury of trunk	false	Inferred relationship	Some
Thoracic back sprain	Associated morphology	Sprain	false	Inferred relationship	Some	1
Thoracic back sprain	Finding site	Structure of ligament of joint (body structure)	false	Inferred relationship	Some
Thoracic back sprain	Finding site	Ligament of spine in thoracic region (body structure)	false	Inferred relationship	Some	1
Thoracic back sprain	Is a	Disorder of thoracic spine	false	Inferred relationship	Some
Thoracic back sprain	Is a	Sprain of spinal ligament	true	Inferred relationship	Some
Thoracic back sprain	Is a	Disorder of joint of spine (disorder)	false	Inferred relationship	Some
Thoracic back sprain	Is a	Chest injury	false	Inferred relationship	Some
Thoracic back sprain	Associated morphology	Sprain (morphologic abnormality)	false	Inferred relationship	Some	1
Thoracic back sprain	Is a	Bone injury	false	Inferred relationship	Some
Thoracic back sprain	Is a	Injury of thoracic spine	true	Inferred relationship	Some
Thoracic back sprain	Finding site	Ligament of spine in thoracic region (body structure)	true	Inferred relationship	Some	1
Thoracic back sprain	Associated morphology	Sprain (morphologic abnormality)	true	Inferred relationship	Some	1
Thoracic back sprain	Is a	Disorder of soft tissue of trunk	true	Inferred relationship	Some
Thoracic back sprain	Is a	Sprain of ligament of trunk (disorder)	true	Inferred relationship	Some
Thoracic back sprain	Due to	Traumatic event (event)	true	Inferred relationship	Some	2

Inbound Relationships

Type

Active

Source

Characteristic

Refinability

Group

This concept is not in any reference sets