94181000119108: Congenital duplication of renal collecting system without obstruction (disorder)

SNOMED CT Concept\Clinical finding\...

\Viscus structure finding\Abdominal organ finding\Kidney finding\Kidney disease\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction

\Finding of trunk structure\Finding of abdominopelvic segment of trunk\Disorder of abdominopelvic segment of trunk\Congenital anomaly of lower trunk\Congenital anomaly of abdomen\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Finding of abdominopelvic segment of trunk\Disorder of abdominopelvic segment of trunk\Congenital anomaly of lower trunk\Genitourinary congenital anomalies\Congenital malformation of the urinary system\Congenital anomaly of the urinary tract proper\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Finding of abdominopelvic segment of trunk\Disorder of abdominopelvic segment of trunk\Congenital anomaly of lower trunk\Genitourinary congenital anomalies\Congenital malformation of the urinary system\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Finding of abdominopelvic segment of trunk\Disorder of abdominopelvic segment of trunk\Disorder of abdomen\Disorder of retroperitoneum\Kidney disease\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Finding of abdominopelvic segment of trunk\Disorder of abdominopelvic segment of trunk\Disorder of abdomen\Congenital anomaly of abdomen\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Finding of abdominopelvic segment of trunk\Disorder of abdominopelvic segment of trunk\Disorder of the genitourinary system\Genitourinary congenital anomalies\Congenital malformation of the urinary system\Congenital anomaly of the urinary tract proper\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Finding of abdominopelvic segment of trunk\Disorder of abdominopelvic segment of trunk\Disorder of the genitourinary system\Genitourinary congenital anomalies\Congenital malformation of the urinary system\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Finding of abdominopelvic segment of trunk\Disorder of abdominopelvic segment of trunk\Disorder of the genitourinary system\Disorder of the urinary system\Disorder of kidney and/or ureter\Kidney disease\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Finding of abdominopelvic segment of trunk\Disorder of abdominopelvic segment of trunk\Disorder of the genitourinary system\Disorder of the urinary system\Congenital malformation of the urinary system\Congenital anomaly of the urinary tract proper\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Finding of abdominopelvic segment of trunk\Disorder of abdominopelvic segment of trunk\Disorder of the genitourinary system\Disorder of the urinary system\Congenital malformation of the urinary system\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Finding of abdominopelvic segment of trunk\Disorder of abdominopelvic segment of trunk\Disorder of the genitourinary system\Disorder of the urinary system\Disorder of urinary tract\Congenital anomaly of the urinary tract proper\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Finding of abdominopelvic segment of trunk\Finding of abdomen\Abdominal organ finding\Kidney finding\Kidney disease\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Finding of abdominopelvic segment of trunk\Finding of abdomen\Disorder of abdomen\Disorder of retroperitoneum\Kidney disease\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Finding of abdominopelvic segment of trunk\Finding of abdomen\Disorder of abdomen\Congenital anomaly of abdomen\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Finding of abdominopelvic segment of trunk\Urogenital finding\Urinary system finding\Kidney finding\Kidney disease\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Finding of abdominopelvic segment of trunk\Urogenital finding\Urinary system finding\Finding of urinary tract proper\Disorder of urinary tract\Congenital anomaly of the urinary tract proper\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Finding of abdominopelvic segment of trunk\Urogenital finding\Urinary system finding\Disorder of the urinary system\Disorder of kidney and/or ureter\Kidney disease\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Finding of abdominopelvic segment of trunk\Urogenital finding\Urinary system finding\Disorder of the urinary system\Congenital malformation of the urinary system\Congenital anomaly of the urinary tract proper\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Finding of abdominopelvic segment of trunk\Urogenital finding\Urinary system finding\Disorder of the urinary system\Congenital malformation of the urinary system\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Finding of abdominopelvic segment of trunk\Urogenital finding\Urinary system finding\Disorder of the urinary system\Disorder of urinary tract\Congenital anomaly of the urinary tract proper\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Finding of abdominopelvic segment of trunk\Urogenital finding\Disorder of the genitourinary system\Genitourinary congenital anomalies\Congenital malformation of the urinary system\Congenital anomaly of the urinary tract proper\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Finding of abdominopelvic segment of trunk\Urogenital finding\Disorder of the genitourinary system\Genitourinary congenital anomalies\Congenital malformation of the urinary system\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Finding of abdominopelvic segment of trunk\Urogenital finding\Disorder of the genitourinary system\Disorder of the urinary system\Disorder of kidney and/or ureter\Kidney disease\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Finding of abdominopelvic segment of trunk\Urogenital finding\Disorder of the genitourinary system\Disorder of the urinary system\Congenital malformation of the urinary system\Congenital anomaly of the urinary tract proper\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Finding of abdominopelvic segment of trunk\Urogenital finding\Disorder of the genitourinary system\Disorder of the urinary system\Congenital malformation of the urinary system\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Finding of abdominopelvic segment of trunk\Urogenital finding\Disorder of the genitourinary system\Disorder of the urinary system\Disorder of urinary tract\Congenital anomaly of the urinary tract proper\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Disorder of trunk\Disorder of abdominopelvic segment of trunk\Congenital anomaly of lower trunk\Congenital anomaly of abdomen\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Disorder of trunk\Disorder of abdominopelvic segment of trunk\Congenital anomaly of lower trunk\Genitourinary congenital anomalies\Congenital malformation of the urinary system\Congenital anomaly of the urinary tract proper\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Disorder of trunk\Disorder of abdominopelvic segment of trunk\Congenital anomaly of lower trunk\Genitourinary congenital anomalies\Congenital malformation of the urinary system\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Disorder of trunk\Disorder of abdominopelvic segment of trunk\Disorder of abdomen\Disorder of retroperitoneum\Kidney disease\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Disorder of trunk\Disorder of abdominopelvic segment of trunk\Disorder of abdomen\Congenital anomaly of abdomen\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Disorder of trunk\Disorder of abdominopelvic segment of trunk\Disorder of the genitourinary system\Genitourinary congenital anomalies\Congenital malformation of the urinary system\Congenital anomaly of the urinary tract proper\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Disorder of trunk\Disorder of abdominopelvic segment of trunk\Disorder of the genitourinary system\Genitourinary congenital anomalies\Congenital malformation of the urinary system\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Disorder of trunk\Disorder of abdominopelvic segment of trunk\Disorder of the genitourinary system\Disorder of the urinary system\Disorder of kidney and/or ureter\Kidney disease\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Disorder of trunk\Disorder of abdominopelvic segment of trunk\Disorder of the genitourinary system\Disorder of the urinary system\Congenital malformation of the urinary system\Congenital anomaly of the urinary tract proper\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Disorder of trunk\Disorder of abdominopelvic segment of trunk\Disorder of the genitourinary system\Disorder of the urinary system\Congenital malformation of the urinary system\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Disorder of trunk\Disorder of abdominopelvic segment of trunk\Disorder of the genitourinary system\Disorder of the urinary system\Disorder of urinary tract\Congenital anomaly of the urinary tract proper\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Disorder of trunk\Congenital anomaly of trunk\Congenital anomaly of lower trunk\Congenital anomaly of abdomen\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Disorder of trunk\Congenital anomaly of trunk\Congenital anomaly of lower trunk\Genitourinary congenital anomalies\Congenital malformation of the urinary system\Congenital anomaly of the urinary tract proper\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Finding of trunk structure\Disorder of trunk\Congenital anomaly of trunk\Congenital anomaly of lower trunk\Genitourinary congenital anomalies\Congenital malformation of the urinary system\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction

\Disease\Disorder of body system\Disorder of the genitourinary system\Genitourinary congenital anomalies\Congenital malformation of the urinary system\Congenital anomaly of the urinary tract proper\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Disorder of body system\Disorder of the genitourinary system\Genitourinary congenital anomalies\Congenital malformation of the urinary system\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Disorder of body system\Disorder of the genitourinary system\Disorder of the urinary system\Disorder of kidney and/or ureter\Kidney disease\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Disorder of body system\Disorder of the genitourinary system\Disorder of the urinary system\Congenital malformation of the urinary system\Congenital anomaly of the urinary tract proper\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Disorder of body system\Disorder of the genitourinary system\Disorder of the urinary system\Congenital malformation of the urinary system\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Disorder of body system\Disorder of the genitourinary system\Disorder of the urinary system\Disorder of urinary tract\Congenital anomaly of the urinary tract proper\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Disorder of trunk\Disorder of abdominopelvic segment of trunk\Congenital anomaly of lower trunk\Congenital anomaly of abdomen\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Disorder of trunk\Disorder of abdominopelvic segment of trunk\Congenital anomaly of lower trunk\Genitourinary congenital anomalies\Congenital malformation of the urinary system\Congenital anomaly of the urinary tract proper\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Disorder of trunk\Disorder of abdominopelvic segment of trunk\Congenital anomaly of lower trunk\Genitourinary congenital anomalies\Congenital malformation of the urinary system\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Disorder of trunk\Disorder of abdominopelvic segment of trunk\Disorder of abdomen\Disorder of retroperitoneum\Kidney disease\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Disorder of trunk\Disorder of abdominopelvic segment of trunk\Disorder of abdomen\Congenital anomaly of abdomen\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Disorder of trunk\Disorder of abdominopelvic segment of trunk\Disorder of the genitourinary system\Genitourinary congenital anomalies\Congenital malformation of the urinary system\Congenital anomaly of the urinary tract proper\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Disorder of trunk\Disorder of abdominopelvic segment of trunk\Disorder of the genitourinary system\Genitourinary congenital anomalies\Congenital malformation of the urinary system\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Disorder of trunk\Disorder of abdominopelvic segment of trunk\Disorder of the genitourinary system\Disorder of the urinary system\Disorder of kidney and/or ureter\Kidney disease\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Disorder of trunk\Disorder of abdominopelvic segment of trunk\Disorder of the genitourinary system\Disorder of the urinary system\Congenital malformation of the urinary system\Congenital anomaly of the urinary tract proper\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Disorder of trunk\Disorder of abdominopelvic segment of trunk\Disorder of the genitourinary system\Disorder of the urinary system\Congenital malformation of the urinary system\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Disorder of trunk\Disorder of abdominopelvic segment of trunk\Disorder of the genitourinary system\Disorder of the urinary system\Disorder of urinary tract\Congenital anomaly of the urinary tract proper\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Disorder of trunk\Congenital anomaly of trunk\Congenital anomaly of lower trunk\Congenital anomaly of abdomen\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Disorder of trunk\Congenital anomaly of trunk\Congenital anomaly of lower trunk\Genitourinary congenital anomalies\Congenital malformation of the urinary system\Congenital anomaly of the urinary tract proper\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Disorder of trunk\Congenital anomaly of trunk\Congenital anomaly of lower trunk\Genitourinary congenital anomalies\Congenital malformation of the urinary system\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Congenital disease\Congenital anomaly\Congenital abnormality of lower limb and pelvic girdle\Congenital anomaly of lower trunk\Congenital anomaly of abdomen\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Congenital disease\Congenital anomaly\Congenital abnormality of lower limb and pelvic girdle\Congenital anomaly of lower trunk\Genitourinary congenital anomalies\Congenital malformation of the urinary system\Congenital anomaly of the urinary tract proper\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Congenital disease\Congenital anomaly\Congenital abnormality of lower limb and pelvic girdle\Congenital anomaly of lower trunk\Genitourinary congenital anomalies\Congenital malformation of the urinary system\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Congenital disease\Congenital anomaly\Congenital anomaly of trunk\Congenital anomaly of lower trunk\Congenital anomaly of abdomen\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Congenital disease\Congenital anomaly\Congenital anomaly of trunk\Congenital anomaly of lower trunk\Genitourinary congenital anomalies\Congenital malformation of the urinary system\Congenital anomaly of the urinary tract proper\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Congenital disease\Congenital anomaly\Congenital anomaly of trunk\Congenital anomaly of lower trunk\Genitourinary congenital anomalies\Congenital malformation of the urinary system\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Developmental disorder\Congenital anomaly\Congenital abnormality of lower limb and pelvic girdle\Congenital anomaly of lower trunk\Congenital anomaly of abdomen\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Developmental disorder\Congenital anomaly\Congenital abnormality of lower limb and pelvic girdle\Congenital anomaly of lower trunk\Genitourinary congenital anomalies\Congenital malformation of the urinary system\Congenital anomaly of the urinary tract proper\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Developmental disorder\Congenital anomaly\Congenital abnormality of lower limb and pelvic girdle\Congenital anomaly of lower trunk\Genitourinary congenital anomalies\Congenital malformation of the urinary system\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Developmental disorder\Congenital anomaly\Congenital anomaly of trunk\Congenital anomaly of lower trunk\Congenital anomaly of abdomen\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Developmental disorder\Congenital anomaly\Congenital anomaly of trunk\Congenital anomaly of lower trunk\Genitourinary congenital anomalies\Congenital malformation of the urinary system\Congenital anomaly of the urinary tract proper\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction
\Disease\Developmental disorder\Congenital anomaly\Congenital anomaly of trunk\Congenital anomaly of lower trunk\Genitourinary congenital anomalies\Congenital malformation of the urinary system\Congenital anomaly of the kidney\Accessory kidney\Double kidney\Congenital duplication of renal collecting system\Congenital duplication of renal collecting system without obstruction

Status: current, Primitive. Date: 31-Jan 2015. Module: SNOMED CT core

Descriptions:

Id Description Lang Type Status Case? Module

3013575019 Duplicated collecting system without obstruction en Synonym Active Case insensitive SNOMED CT core

3035205010 Congenital duplication of renal collecting system without obstruction (disorder) en Fully specified name Active Case insensitive SNOMED CT core

3035206011 Congenital duplication of renal collecting system without obstruction en Synonym Active Case insensitive SNOMED CT core

Expanded Value Set

Outbound Relationships	Type	Target	Active	Characteristic	Refinability	Group	Values
Congenital duplication of renal collecting system without obstruction	Pathological process	Pathological developmental process	true	Inferred relationship	Some	1
Congenital duplication of renal collecting system without obstruction	Is a	Congenital duplication of renal collecting system	true	Inferred relationship	Some
Congenital duplication of renal collecting system without obstruction	Associated morphology	Double structure	true	Inferred relationship	Some	1
Congenital duplication of renal collecting system without obstruction	Occurrence	Congenital	true	Inferred relationship	Some	1
Congenital duplication of renal collecting system without obstruction	Finding site	Renal collecting system structure	true	Inferred relationship	Some	1

Inbound Relationships

Type

Active

Source

Characteristic

Refinability

Group

Reference Sets

Australian emergency department reference set

Clinical finding foundation reference set

Problem/Diagnosis reference set