181751005: Entire quadratus lumborum muscle (body structure)

SNOMED CT Concept\structure corporelle\Anatomical or acquired body structure (body structure)\Anatomical structure\...

\Body organ structure\Structure of striated muscle and/or smooth muscle\Structure of striated muscle\structure de muscle squelettique\Structure of muscle acting on joint\Structure of muscle acting on intervertebral joint (body structure)\Structure of muscle acting on lumbar intervertebral joint (body structure)\Lateral flexor of lumbar intervertebral joint\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body organ structure\Structure of striated muscle and/or smooth muscle\Structure of striated muscle\structure de muscle squelettique\Structure of muscle acting on joint\Structure of muscle acting on intervertebral joint (body structure)\Structure of muscle acting on lumbar intervertebral joint (body structure)\Extensor of lumbar intervertebral joint\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body organ structure\Structure of striated muscle and/or smooth muscle\Structure of striated muscle\structure de muscle squelettique\Structure of muscle acting on joint\Structure of muscle acting on intervertebral joint (body structure)\Muscle acting on thoracic intervertebral joint\Lateral flexor of thoracic intervertebral joint\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body organ structure\Structure of striated muscle and/or smooth muscle\Structure of striated muscle\structure de muscle squelettique\Structure of muscle acting on joint\Structure of muscle acting on back (body structure)\Structure of muscle acting on lumbar intervertebral joint (body structure)\Lateral flexor of lumbar intervertebral joint\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body organ structure\Structure of striated muscle and/or smooth muscle\Structure of striated muscle\structure de muscle squelettique\Structure of muscle acting on joint\Structure of muscle acting on back (body structure)\Structure of muscle acting on lumbar intervertebral joint (body structure)\Extensor of lumbar intervertebral joint\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body organ structure\Structure of striated muscle and/or smooth muscle\Structure of striated muscle\structure de muscle squelettique\Structure of muscle acting on joint\Structure of muscle acting on back (body structure)\Muscle acting on thoracic intervertebral joint\Lateral flexor of thoracic intervertebral joint\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body organ structure\Structure of striated muscle and/or smooth muscle\Structure of striated muscle\structure de muscle squelettique\Regional skeletal muscle structure\Skeletal muscle structure of trunk\Abdominal skeletal muscle\Structure of posterior muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Body organ structure\Structure of striated muscle and/or smooth muscle\Structure of striated muscle\structure de muscle squelettique\Regional skeletal muscle structure\Skeletal muscle structure of trunk\Abdominal skeletal muscle\Entire skeletal muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Body organ structure\Structure of striated muscle and/or smooth muscle\Structure of striated muscle\structure de muscle squelettique\Regional skeletal muscle structure\Skeletal muscle structure of trunk\Abdominal skeletal muscle\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body organ structure\Structure of striated muscle and/or smooth muscle\Structure of striated muscle\structure de muscle squelettique\Regional skeletal muscle structure\Skeletal muscle structure of trunk\Entire skeletal muscle of trunk\Entire skeletal muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Body organ structure\Structure of striated muscle and/or smooth muscle\Structure of striated muscle\structure de muscle squelettique\Regional skeletal muscle structure\Skeletal muscle structure of trunk\Skeletal muscle structure of back\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body organ structure\Structure of striated muscle and/or smooth muscle\Structure of striated muscle\structure de muscle squelettique\Entire skeletal muscle (organ)\Entire skeletal muscle of trunk\Entire skeletal muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Body organ structure\Structure of striated muscle and/or smooth muscle\Muscle structure\structure de muscle squelettique\Structure of muscle acting on joint\Structure of muscle acting on intervertebral joint (body structure)\Structure of muscle acting on lumbar intervertebral joint (body structure)\Lateral flexor of lumbar intervertebral joint\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body organ structure\Structure of striated muscle and/or smooth muscle\Muscle structure\structure de muscle squelettique\Structure of muscle acting on joint\Structure of muscle acting on intervertebral joint (body structure)\Structure of muscle acting on lumbar intervertebral joint (body structure)\Extensor of lumbar intervertebral joint\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body organ structure\Structure of striated muscle and/or smooth muscle\Muscle structure\structure de muscle squelettique\Structure of muscle acting on joint\Structure of muscle acting on intervertebral joint (body structure)\Muscle acting on thoracic intervertebral joint\Lateral flexor of thoracic intervertebral joint\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body organ structure\Structure of striated muscle and/or smooth muscle\Muscle structure\structure de muscle squelettique\Structure of muscle acting on joint\Structure of muscle acting on back (body structure)\Structure of muscle acting on lumbar intervertebral joint (body structure)\Lateral flexor of lumbar intervertebral joint\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body organ structure\Structure of striated muscle and/or smooth muscle\Muscle structure\structure de muscle squelettique\Structure of muscle acting on joint\Structure of muscle acting on back (body structure)\Structure of muscle acting on lumbar intervertebral joint (body structure)\Extensor of lumbar intervertebral joint\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body organ structure\Structure of striated muscle and/or smooth muscle\Muscle structure\structure de muscle squelettique\Structure of muscle acting on joint\Structure of muscle acting on back (body structure)\Muscle acting on thoracic intervertebral joint\Lateral flexor of thoracic intervertebral joint\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body organ structure\Structure of striated muscle and/or smooth muscle\Muscle structure\structure de muscle squelettique\Regional skeletal muscle structure\Skeletal muscle structure of trunk\Abdominal skeletal muscle\Structure of posterior muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Body organ structure\Structure of striated muscle and/or smooth muscle\Muscle structure\structure de muscle squelettique\Regional skeletal muscle structure\Skeletal muscle structure of trunk\Abdominal skeletal muscle\Entire skeletal muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Body organ structure\Structure of striated muscle and/or smooth muscle\Muscle structure\structure de muscle squelettique\Regional skeletal muscle structure\Skeletal muscle structure of trunk\Abdominal skeletal muscle\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body organ structure\Structure of striated muscle and/or smooth muscle\Muscle structure\structure de muscle squelettique\Regional skeletal muscle structure\Skeletal muscle structure of trunk\Entire skeletal muscle of trunk\Entire skeletal muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Body organ structure\Structure of striated muscle and/or smooth muscle\Muscle structure\structure de muscle squelettique\Regional skeletal muscle structure\Skeletal muscle structure of trunk\Skeletal muscle structure of back\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body organ structure\Structure of striated muscle and/or smooth muscle\Muscle structure\structure de muscle squelettique\Entire skeletal muscle (organ)\Entire skeletal muscle of trunk\Entire skeletal muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Body organ structure\Entire body organ\Entire skeletal muscle (organ)\Entire skeletal muscle of trunk\Entire skeletal muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle

\Physical anatomical entity\Material anatomical entity\Entire body organ\Entire skeletal muscle (organ)\Entire skeletal muscle of trunk\Entire skeletal muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle

\structure d'un système corporel\appareil locomoteur\...

\Structure of regional musculoskeletal system (body structure)\Musculoskeletal structure of trunk\Skeletal muscle structure of trunk\Abdominal skeletal muscle\Structure of posterior muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Structure of regional musculoskeletal system (body structure)\Musculoskeletal structure of trunk\Skeletal muscle structure of trunk\Abdominal skeletal muscle\Entire skeletal muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Structure of regional musculoskeletal system (body structure)\Musculoskeletal structure of trunk\Skeletal muscle structure of trunk\Abdominal skeletal muscle\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Structure of regional musculoskeletal system (body structure)\Musculoskeletal structure of trunk\Skeletal muscle structure of trunk\Entire skeletal muscle of trunk\Entire skeletal muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Structure of regional musculoskeletal system (body structure)\Musculoskeletal structure of trunk\Skeletal muscle structure of trunk\Skeletal muscle structure of back\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Structure of regional musculoskeletal system (body structure)\Regional skeletal muscle structure\Skeletal muscle structure of trunk\Abdominal skeletal muscle\Structure of posterior muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Structure of regional musculoskeletal system (body structure)\Regional skeletal muscle structure\Skeletal muscle structure of trunk\Abdominal skeletal muscle\Entire skeletal muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Structure of regional musculoskeletal system (body structure)\Regional skeletal muscle structure\Skeletal muscle structure of trunk\Abdominal skeletal muscle\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Structure of regional musculoskeletal system (body structure)\Regional skeletal muscle structure\Skeletal muscle structure of trunk\Entire skeletal muscle of trunk\Entire skeletal muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Structure of regional musculoskeletal system (body structure)\Regional skeletal muscle structure\Skeletal muscle structure of trunk\Skeletal muscle structure of back\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle

\Skeletal muscle system structure\Skeletal muscle and/or tendon structure\structure de muscle squelettique\...

\Regional skeletal muscle structure\Skeletal muscle structure of trunk\...

\Abdominal skeletal muscle\Structure of posterior muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Abdominal skeletal muscle\Entire skeletal muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Abdominal skeletal muscle\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle

\Entire skeletal muscle of trunk\Entire skeletal muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle

\Skeletal muscle structure of back\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle

\Entire skeletal muscle (organ)\Entire skeletal muscle of trunk\Entire skeletal muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle

\Body tissue structure\structure d'un tissu mou (structure corporelle)\structure de muscle squelettique\...

\Regional skeletal muscle structure\Skeletal muscle structure of trunk\...

\Abdominal skeletal muscle\Structure of posterior muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Abdominal skeletal muscle\Entire skeletal muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Abdominal skeletal muscle\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle

\Entire skeletal muscle of trunk\Entire skeletal muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle

\Skeletal muscle structure of back\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle

\Entire skeletal muscle (organ)\Entire skeletal muscle of trunk\Entire skeletal muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle

\Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\Structure of abdominopelvic segment of trunk (body structure)\Abdominal skeletal muscle\Structure of posterior muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\Structure of abdominopelvic segment of trunk (body structure)\Abdominal skeletal muscle\Entire skeletal muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\Structure of abdominopelvic segment of trunk (body structure)\Abdominal skeletal muscle\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\Structure of abdominopelvic segment of trunk (body structure)\Lower back structure\structure de la région lombo-sacrale (structure corporelle)\région lombale\Posterior abdominal wall structure\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body region structure\Structure of regional musculoskeletal system (body structure)\Musculoskeletal structure of trunk\Skeletal muscle structure of trunk\Abdominal skeletal muscle\Structure of posterior muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Body region structure\Structure of regional musculoskeletal system (body structure)\Musculoskeletal structure of trunk\Skeletal muscle structure of trunk\Abdominal skeletal muscle\Entire skeletal muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Body region structure\Structure of regional musculoskeletal system (body structure)\Musculoskeletal structure of trunk\Skeletal muscle structure of trunk\Abdominal skeletal muscle\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body region structure\Structure of regional musculoskeletal system (body structure)\Musculoskeletal structure of trunk\Skeletal muscle structure of trunk\Entire skeletal muscle of trunk\Entire skeletal muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Body region structure\Structure of regional musculoskeletal system (body structure)\Musculoskeletal structure of trunk\Skeletal muscle structure of trunk\Skeletal muscle structure of back\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body region structure\Structure of regional musculoskeletal system (body structure)\Regional skeletal muscle structure\Skeletal muscle structure of trunk\Abdominal skeletal muscle\Structure of posterior muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Body region structure\Structure of regional musculoskeletal system (body structure)\Regional skeletal muscle structure\Skeletal muscle structure of trunk\Abdominal skeletal muscle\Entire skeletal muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Body region structure\Structure of regional musculoskeletal system (body structure)\Regional skeletal muscle structure\Skeletal muscle structure of trunk\Abdominal skeletal muscle\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body region structure\Structure of regional musculoskeletal system (body structure)\Regional skeletal muscle structure\Skeletal muscle structure of trunk\Entire skeletal muscle of trunk\Entire skeletal muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Body region structure\Structure of regional musculoskeletal system (body structure)\Regional skeletal muscle structure\Skeletal muscle structure of trunk\Skeletal muscle structure of back\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body region structure\Structure of back of trunk and/or neck (body structure)\dos\Regional back structure\Lower back structure\structure de la région lombo-sacrale (structure corporelle)\région lombale\Posterior abdominal wall structure\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body region structure\Structure of back of trunk and/or neck (body structure)\dos\Regional back structure\structure de la région thoracolombale (structure corporelle)\région lombale\Posterior abdominal wall structure\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body region structure\Structure of back of trunk and/or neck (body structure)\dos\Skeletal muscle structure of back\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body region structure\Body part structure\Lower body structure\Lower body part structure\Structure of abdominopelvic segment of trunk (body structure)\Abdominal skeletal muscle\Structure of posterior muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Body region structure\Body part structure\Lower body structure\Lower body part structure\Structure of abdominopelvic segment of trunk (body structure)\Abdominal skeletal muscle\Entire skeletal muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Body region structure\Body part structure\Lower body structure\Lower body part structure\Structure of abdominopelvic segment of trunk (body structure)\Abdominal skeletal muscle\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body region structure\Body part structure\Lower body structure\Lower body part structure\Structure of abdominopelvic segment of trunk (body structure)\Lower back structure\structure de la région lombo-sacrale (structure corporelle)\région lombale\Posterior abdominal wall structure\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body region structure\Body part structure\tronc (structure corporelle)\Structure of subregion of trunk (body structure)\dos\Regional back structure\Lower back structure\structure de la région lombo-sacrale (structure corporelle)\région lombale\Posterior abdominal wall structure\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body region structure\Body part structure\tronc (structure corporelle)\Structure of subregion of trunk (body structure)\dos\Regional back structure\structure de la région thoracolombale (structure corporelle)\région lombale\Posterior abdominal wall structure\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body region structure\Body part structure\tronc (structure corporelle)\Structure of subregion of trunk (body structure)\dos\Skeletal muscle structure of back\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body region structure\Body part structure\tronc (structure corporelle)\Structure of subregion of trunk (body structure)\Structure of abdominopelvic segment of trunk (body structure)\Abdominal skeletal muscle\Structure of posterior muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Body region structure\Body part structure\tronc (structure corporelle)\Structure of subregion of trunk (body structure)\Structure of abdominopelvic segment of trunk (body structure)\Abdominal skeletal muscle\Entire skeletal muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Body region structure\Body part structure\tronc (structure corporelle)\Structure of subregion of trunk (body structure)\Structure of abdominopelvic segment of trunk (body structure)\Abdominal skeletal muscle\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body region structure\Body part structure\tronc (structure corporelle)\Structure of subregion of trunk (body structure)\Structure of abdominopelvic segment of trunk (body structure)\Lower back structure\structure de la région lombo-sacrale (structure corporelle)\région lombale\Posterior abdominal wall structure\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body region structure\Body part structure\tronc (structure corporelle)\Musculoskeletal structure of trunk\Skeletal muscle structure of trunk\Abdominal skeletal muscle\Structure of posterior muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Body region structure\Body part structure\tronc (structure corporelle)\Musculoskeletal structure of trunk\Skeletal muscle structure of trunk\Abdominal skeletal muscle\Entire skeletal muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Body region structure\Body part structure\tronc (structure corporelle)\Musculoskeletal structure of trunk\Skeletal muscle structure of trunk\Abdominal skeletal muscle\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle
\Body region structure\Body part structure\tronc (structure corporelle)\Musculoskeletal structure of trunk\Skeletal muscle structure of trunk\Entire skeletal muscle of trunk\Entire skeletal muscle of abdomen\Entire posterior muscle of abdomen (body structure)\Entire quadratus lumborum muscle
\Body region structure\Body part structure\tronc (structure corporelle)\Musculoskeletal structure of trunk\Skeletal muscle structure of trunk\Skeletal muscle structure of back\Structure of quadratus lumborum muscle\Entire quadratus lumborum muscle

Status: current, Not sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jan 2002. Module: SNOMED CT core

Descriptions:

Id Description Lang Type Status Case? Module

280983015 Entire quadratus lumborum muscle en Synonym (core metadata concept) Active Entire term case insensitive (core metadata concept) SNOMED CT core

3327184012 Entire quadratus lumborum en Synonym (core metadata concept) Active Entire term case insensitive (core metadata concept) SNOMED CT core

565034015 Entire quadratus lumborum muscle (body structure) en Fully specified name Active Entire term case insensitive (core metadata concept) SNOMED CT core

Expanded Value Set

Outbound Relationships	Type	Target	Active	Characteristic	Refinability	Group	Values
Entire quadratus lumborum muscle	est un(e) (attribut)	Lateral flexor of thoracic intervertebral joint	false	Inferred relationship	Some
Entire quadratus lumborum muscle	est un(e) (attribut)	Lateral flexor of lumbar intervertebral joint	false	Inferred relationship	Some
Entire quadratus lumborum muscle	est un(e) (attribut)	Extensor of lumbar intervertebral joint	false	Inferred relationship	Some
Entire quadratus lumborum muscle	est un(e) (attribut)	Structure of quadratus lumborum muscle	true	Inferred relationship	Some
Entire quadratus lumborum muscle	est un(e) (attribut)	Entire posterior muscle of abdomen (body structure)	true	Inferred relationship	Some
Entire quadratus lumborum muscle	partie de	dos	false	Additional relationship	Some
Entire quadratus lumborum muscle	partie de	Entire back (surface region)	false	Additional relationship	Some
Entire quadratus lumborum muscle	partie de	Entire axial skeleton	false	Additional relationship	Some
Entire quadratus lumborum muscle	partie de	Entire skeletal muscle system	false	Additional relationship	Some
Entire quadratus lumborum muscle	partie de	Entire abdominal wall	false	Additional relationship	Some

Inbound Relationships

Type

Active

Source

Characteristic

Refinability

Group

Reference Sets

Lateralizable body structure reference set (foundation metadata concept)