15973341000119103: Congenital deformity of bilateral calcanea (disorder)

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

\Finding of limb structure\Disorder of limb (disorder)\Disorder of lower limb\Disorder of left lower extremity (disorder)\Congenital anomaly of left lower limb\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Finding of limb structure\Disorder of limb (disorder)\Disorder of lower limb\Disorder of right lower extremity (disorder)\Congenital anomaly of right lower limb (disorder)\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Finding of limb structure\Disorder of limb (disorder)\Disorder of lower limb\Disorder of free lower limb (disorder)\Disorder of foot (disorder)\Congenital abnormality of foot and toes (disorder)\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Finding of limb structure\Disorder of limb (disorder)\Disorder of lower limb\Disorder of free lower limb (disorder)\Disorder of foot (disorder)\Congenital abnormality of foot and toes (disorder)\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Finding of limb structure\Disorder of limb (disorder)\Disorder of lower limb\Congenital anomaly of lower limb (disorder)\Congenital anomaly of right lower limb (disorder)\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Finding of limb structure\Disorder of limb (disorder)\Disorder of lower limb\Congenital anomaly of lower limb (disorder)\Congenital anomaly of left lower limb\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Finding of limb structure\Disorder of limb (disorder)\Disorder of lower limb\Congenital anomaly of lower limb (disorder)\Congenital abnormality of foot and toes (disorder)\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Finding of limb structure\Disorder of limb (disorder)\Disorder of lower limb\Congenital anomaly of lower limb (disorder)\Congenital abnormality of foot and toes (disorder)\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Finding of limb structure\Disorder of limb (disorder)\Congenital anomaly of limb\Congenital anomaly of lower limb (disorder)\Congenital anomaly of right lower limb (disorder)\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Finding of limb structure\Disorder of limb (disorder)\Congenital anomaly of limb\Congenital anomaly of lower limb (disorder)\Congenital anomaly of left lower limb\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Finding of limb structure\Disorder of limb (disorder)\Congenital anomaly of limb\Congenital anomaly of lower limb (disorder)\Congenital abnormality of foot and toes (disorder)\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Finding of limb structure\Disorder of limb (disorder)\Congenital anomaly of limb\Congenital anomaly of lower limb (disorder)\Congenital abnormality of foot and toes (disorder)\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Finding of limb structure\Finding of lower limb\Finding of bone of lower limb (finding)\Finding of bone of foot\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Finding of limb structure\Finding of lower limb\Finding of bone of lower limb (finding)\Finding of bone of foot\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Finding of limb structure\Finding of lower limb\Finding of ankle or foot (finding)\Finding of foot region\Finding of bone of foot\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Finding of limb structure\Finding of lower limb\Finding of ankle or foot (finding)\Finding of foot region\Finding of bone of foot\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Finding of limb structure\Finding of lower limb\Finding of ankle or foot (finding)\Finding of foot region\Disorder of foot (disorder)\Congenital abnormality of foot and toes (disorder)\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Finding of limb structure\Finding of lower limb\Finding of ankle or foot (finding)\Finding of foot region\Disorder of foot (disorder)\Congenital abnormality of foot and toes (disorder)\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Finding of limb structure\Finding of lower limb\Disorder of lower limb\Disorder of left lower extremity (disorder)\Congenital anomaly of left lower limb\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Finding of limb structure\Finding of lower limb\Disorder of lower limb\Disorder of right lower extremity (disorder)\Congenital anomaly of right lower limb (disorder)\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Finding of limb structure\Finding of lower limb\Disorder of lower limb\Disorder of free lower limb (disorder)\Disorder of foot (disorder)\Congenital abnormality of foot and toes (disorder)\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Finding of limb structure\Finding of lower limb\Disorder of lower limb\Disorder of free lower limb (disorder)\Disorder of foot (disorder)\Congenital abnormality of foot and toes (disorder)\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Finding of limb structure\Finding of lower limb\Disorder of lower limb\Congenital anomaly of lower limb (disorder)\Congenital anomaly of right lower limb (disorder)\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Finding of limb structure\Finding of lower limb\Disorder of lower limb\Congenital anomaly of lower limb (disorder)\Congenital anomaly of left lower limb\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Finding of limb structure\Finding of lower limb\Disorder of lower limb\Congenital anomaly of lower limb (disorder)\Congenital abnormality of foot and toes (disorder)\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Finding of limb structure\Finding of lower limb\Disorder of lower limb\Congenital anomaly of lower limb (disorder)\Congenital abnormality of foot and toes (disorder)\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)

\Musculoskeletal finding\Bone finding\Finding of bone of lower limb (finding)\Finding of bone of foot\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Musculoskeletal finding\Bone finding\Finding of bone of lower limb (finding)\Finding of bone of foot\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Musculoskeletal finding\Bone finding\Disorder of bone (disorder)\Disorder of bone development (disorder)\Congenital anomaly of skeletal bone\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Musculoskeletal finding\Bone finding\Disorder of bone (disorder)\Disorder of bone development (disorder)\Congenital anomaly of skeletal bone\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Musculoskeletal finding\Disorder of musculoskeletal system\Disorder of skeletal system\Disorder of bone (disorder)\Disorder of bone development (disorder)\Congenital anomaly of skeletal bone\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Musculoskeletal finding\Disorder of musculoskeletal system\Disorder of skeletal system\Disorder of bone (disorder)\Disorder of bone development (disorder)\Congenital anomaly of skeletal bone\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Musculoskeletal finding\Disorder of musculoskeletal system\Congenital anomaly of musculoskeletal system\Congenital anomaly of skeletal bone\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Musculoskeletal finding\Disorder of musculoskeletal system\Congenital anomaly of musculoskeletal system\Congenital anomaly of skeletal bone\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)

\Disease\Disorder of foetus and/or newborn\Congenital disease (disorder)\Congenital malformation\Congenital abnormality of lower limb and pelvic girdle\Congenital anomaly of lower limb (disorder)\Congenital anomaly of right lower limb (disorder)\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Disorder of foetus and/or newborn\Congenital disease (disorder)\Congenital malformation\Congenital abnormality of lower limb and pelvic girdle\Congenital anomaly of lower limb (disorder)\Congenital anomaly of left lower limb\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Disorder of foetus and/or newborn\Congenital disease (disorder)\Congenital malformation\Congenital abnormality of lower limb and pelvic girdle\Congenital anomaly of lower limb (disorder)\Congenital abnormality of foot and toes (disorder)\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Disorder of foetus and/or newborn\Congenital disease (disorder)\Congenital malformation\Congenital abnormality of lower limb and pelvic girdle\Congenital anomaly of lower limb (disorder)\Congenital abnormality of foot and toes (disorder)\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Disorder of foetus and/or newborn\Congenital disease (disorder)\Congenital malformation\Congenital anomaly of musculoskeletal system\Congenital anomaly of skeletal bone\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Disorder of foetus and/or newborn\Congenital disease (disorder)\Congenital malformation\Congenital anomaly of musculoskeletal system\Congenital anomaly of skeletal bone\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Disorder of foetus and/or newborn\Congenital disease (disorder)\Congenital malformation\Congenital anomaly of limb\Congenital anomaly of lower limb (disorder)\Congenital anomaly of right lower limb (disorder)\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Disorder of foetus and/or newborn\Congenital disease (disorder)\Congenital malformation\Congenital anomaly of limb\Congenital anomaly of lower limb (disorder)\Congenital anomaly of left lower limb\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Disorder of foetus and/or newborn\Congenital disease (disorder)\Congenital malformation\Congenital anomaly of limb\Congenital anomaly of lower limb (disorder)\Congenital abnormality of foot and toes (disorder)\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Disorder of foetus and/or newborn\Congenital disease (disorder)\Congenital malformation\Congenital anomaly of limb\Congenital anomaly of lower limb (disorder)\Congenital abnormality of foot and toes (disorder)\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Disorder of body system\Disorder of musculoskeletal system\Disorder of skeletal system\Disorder of bone (disorder)\Disorder of bone development (disorder)\Congenital anomaly of skeletal bone\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Disorder of body system\Disorder of musculoskeletal system\Disorder of skeletal system\Disorder of bone (disorder)\Disorder of bone development (disorder)\Congenital anomaly of skeletal bone\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Disorder of body system\Disorder of musculoskeletal system\Congenital anomaly of musculoskeletal system\Congenital anomaly of skeletal bone\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Disorder of body system\Disorder of musculoskeletal system\Congenital anomaly of musculoskeletal system\Congenital anomaly of skeletal bone\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Disorder of limb (disorder)\Disorder of lower limb\Disorder of left lower extremity (disorder)\Congenital anomaly of left lower limb\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Disorder of limb (disorder)\Disorder of lower limb\Disorder of right lower extremity (disorder)\Congenital anomaly of right lower limb (disorder)\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Disorder of limb (disorder)\Disorder of lower limb\Disorder of free lower limb (disorder)\Disorder of foot (disorder)\Congenital abnormality of foot and toes (disorder)\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Disorder of limb (disorder)\Disorder of lower limb\Disorder of free lower limb (disorder)\Disorder of foot (disorder)\Congenital abnormality of foot and toes (disorder)\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Disorder of limb (disorder)\Disorder of lower limb\Congenital anomaly of lower limb (disorder)\Congenital anomaly of right lower limb (disorder)\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Disorder of limb (disorder)\Disorder of lower limb\Congenital anomaly of lower limb (disorder)\Congenital anomaly of left lower limb\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Disorder of limb (disorder)\Disorder of lower limb\Congenital anomaly of lower limb (disorder)\Congenital abnormality of foot and toes (disorder)\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Disorder of limb (disorder)\Disorder of lower limb\Congenital anomaly of lower limb (disorder)\Congenital abnormality of foot and toes (disorder)\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Disorder of limb (disorder)\Congenital anomaly of limb\Congenital anomaly of lower limb (disorder)\Congenital anomaly of right lower limb (disorder)\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Disorder of limb (disorder)\Congenital anomaly of limb\Congenital anomaly of lower limb (disorder)\Congenital anomaly of left lower limb\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Disorder of limb (disorder)\Congenital anomaly of limb\Congenital anomaly of lower limb (disorder)\Congenital abnormality of foot and toes (disorder)\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Disorder of limb (disorder)\Congenital anomaly of limb\Congenital anomaly of lower limb (disorder)\Congenital abnormality of foot and toes (disorder)\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Developmental disorder\Disorder of bone development (disorder)\Congenital anomaly of skeletal bone\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Developmental disorder\Disorder of bone development (disorder)\Congenital anomaly of skeletal bone\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Developmental disorder\Congenital malformation\Congenital abnormality of lower limb and pelvic girdle\Congenital anomaly of lower limb (disorder)\Congenital anomaly of right lower limb (disorder)\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Developmental disorder\Congenital malformation\Congenital abnormality of lower limb and pelvic girdle\Congenital anomaly of lower limb (disorder)\Congenital anomaly of left lower limb\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Developmental disorder\Congenital malformation\Congenital abnormality of lower limb and pelvic girdle\Congenital anomaly of lower limb (disorder)\Congenital abnormality of foot and toes (disorder)\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Developmental disorder\Congenital malformation\Congenital abnormality of lower limb and pelvic girdle\Congenital anomaly of lower limb (disorder)\Congenital abnormality of foot and toes (disorder)\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Developmental disorder\Congenital malformation\Congenital anomaly of musculoskeletal system\Congenital anomaly of skeletal bone\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Developmental disorder\Congenital malformation\Congenital anomaly of musculoskeletal system\Congenital anomaly of skeletal bone\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Developmental disorder\Congenital malformation\Congenital anomaly of limb\Congenital anomaly of lower limb (disorder)\Congenital anomaly of right lower limb (disorder)\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Developmental disorder\Congenital malformation\Congenital anomaly of limb\Congenital anomaly of lower limb (disorder)\Congenital anomaly of left lower limb\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Developmental disorder\Congenital malformation\Congenital anomaly of limb\Congenital anomaly of lower limb (disorder)\Congenital abnormality of foot and toes (disorder)\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of left calcaneus\Congenital deformity of bilateral calcanea (disorder)
\Disease\Developmental disorder\Congenital malformation\Congenital anomaly of limb\Congenital anomaly of lower limb (disorder)\Congenital abnormality of foot and toes (disorder)\Congenital anomaly of tarsal bone\Congenital anomaly of calcaneus\Congenital malformation of right calcaneus\Congenital deformity of bilateral calcanea (disorder)

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

Descriptions:

Id Description Lang Type Status Case? Module

5276131015 Congenital deformity of bilateral calcanea en Synonym (core metadata concept) Active Entire term case insensitive (core metadata concept) SNOMED CT core

5276132010 Congenital deformity of bilateral calcanea (disorder) en Fully specified name Active Entire term case insensitive (core metadata concept) SNOMED CT core

5276137016 Congenital deformity of both calcanea en Synonym (core metadata concept) Active Entire term case insensitive (core metadata concept) SNOMED CT core

5276609010 Bilateral calcaneal congenital deformity 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
Congenital deformity of bilateral calcanea (disorder)	Is a	Congenital malformation of right calcaneus	true	Inferred relationship	Some
Congenital deformity of bilateral calcanea (disorder)	Is a	Congenital malformation of left calcaneus	true	Inferred relationship	Some
Congenital deformity of bilateral calcanea (disorder)	Occurrence	Congenital	true	Inferred relationship	Some	1
Congenital deformity of bilateral calcanea (disorder)	Finding site	Structure of bone of left calcaneum (body structure)	true	Inferred relationship	Some	1
Congenital deformity of bilateral calcanea (disorder)	Associated morphology	Morphologically abnormal structure (morphologic abnormality)	true	Inferred relationship	Some	1
Congenital deformity of bilateral calcanea (disorder)	Pathological process (attribute)	Pathological developmental process	true	Inferred relationship	Some	1
Congenital deformity of bilateral calcanea (disorder)	Occurrence	Congenital	true	Inferred relationship	Some	2
Congenital deformity of bilateral calcanea (disorder)	Finding site	Structure of bone of right calcaneum (body structure)	true	Inferred relationship	Some	2
Congenital deformity of bilateral calcanea (disorder)	Associated morphology	Morphologically abnormal structure (morphologic abnormality)	true	Inferred relationship	Some	2
Congenital deformity of bilateral calcanea (disorder)	Pathological process (attribute)	Pathological developmental process	true	Inferred relationship	Some	2

Inbound Relationships

Type

Active

Source

Characteristic

Refinability

Group

This concept is not in any reference sets