| UK BANK ACCOUNT NUMBER (retired) | Data Element | |
| UK BANK BRANCH SORT CODE (retired) | Data Element | |
| UK BANK BRANCH SORT CODE (retired) | Attribute | |
| UK BUILDING SOCIETY ACCOUNT NUMBER (retired) | Data Element | |
| UK CHEQUE NUMBER (retired) | Data Element | |
| UK FACSIMILE NUMBER | Data Element | |
| UK GOVERNMENT FINANCIAL YEAR (retired) | Data Element | |
| UK INTERNAL CODE (retired) | Data Element | |
| UK INTERNAL CODE (retired) | Attribute | |
| UK National Screening Committee | Supporting Information | |
| UK Renal Registry | Supporting Information | |
| UK TAX YEAR (retired) | Data Element | |
| UK TELEPHONE NUMBER | Data Element | |
| UK Terminology Centre | Supporting Information | |
| UK TRANSPLANT NUMBER | Data Element | To top |
| ULCERATION INDICATION CODE | Attribute | |
| ULCERATION INDICATION CODE | Data Element | |
| ULTRASOUND RESULT CODE FOR BREAST CANCER | Attribute | |
| Ultrasound Scan | Supporting Information | |
| Ultrasound Scan In Pregnancy | Supporting Information | |
| UMBILICAL CORD BLOOD BASE EXCESS CONCENTRATION (ARTERIAL) | Data Element | |
| UMBILICAL CORD BLOOD BASE EXCESS CONCENTRATION (VENOUS) | Data Element | |
| UMBILICAL CORD BLOOD LACTATE LEVEL | Data Element | |
| UMBILICAL CORD BLOOD PARTIAL PRESSURE CARBON DIOXIDE (ARTERIAL) | Data Element | |
| UMBILICAL CORD BLOOD PARTIAL PRESSURE CARBON DIOXIDE (VENOUS) | Data Element | |
| UMBILICAL CORD BLOOD PH LEVEL (ARTERIAL) | Data Element | |
| UMBILICAL CORD BLOOD PH LEVEL (VENOUS) | Data Element | |
| UMBILICAL CORD CLAMPED IMMEDIATELY AFTER BIRTH INDICATOR | Data Element | |
| UMBILICAL CORD MILKING PERFORMED INDICATOR | Data Element | |
| Unaccompanied Asylum Seeking Child | Supporting Information | To top |
| UNIFORM RESOURCE LOCATOR (URL) | Data Element | |
| Unify2 | Supporting Information | |
| UNINVOLVED CERVICAL STROMA THICKNESS | Data Element | |
| Union for International Cancer Control | Supporting Information | |
| UNION FOR INTERNATIONAL CANCER CONTROL CODE | Attribute | |
| UNIQUE BOOKING REFERENCE NUMBER (CONVERTED) | Attribute | |
| UNIQUE BOOKING REFERENCE NUMBER (CONVERTED) | Data Element | |
| UNIQUE PUPIL NUMBER (retired) | Attribute | |
| UNIQUE PUPIL NUMBER (retired) | Data Element | |
| UNIQUE TAX REFERENCE NUMBER (retired) | Attribute | |
| UNIQUE TAX REFERENCE NUMBER (retired) | Data Element | |
| Unitary Authority | Supporting Information | |
| UNIT BED CONFIGURATION | Attribute | |
| United Kingdom and Ireland Association of Cancer Registries | Supporting Information | |
| UNIT OF MEASUREMENT | Attribute | To top |
| UNIT OF MEASUREMENT | Class | |
| UNIT OF MEDICAMENT (retired) | Attribute | |
| UNPLANNED OPERATION INDICATOR | Attribute | |
| UNPLANNED OPERATION INDICATOR | Data Element | |
| Unscheduled Appointment (retired) | Supporting Information | |
| UNSCHEDULED ATTENDANCES - RESPONSES TO PATIENT WAIT QUESTION TOTAL (retired) | Data Element | |
| UNSCHEDULED DIAGNOSTIC TESTS DONE | Data Element | |
| UNSEALED SOURCE ISOTOPE TYPE (retired) | Attribute | |
| UNSEALED SOURCE PATIENT TYPE (retired) | Attribute | |
| UNSEALED SOURCE PATIENT TYPE (retired) | Data Element | |
| Unsealed Source Treatment Course (retired) | Supporting Information | |
| UNTOWARD INTRAOPERATIVE EVENT CODE (ANKLE REPLACEMENT) | Data Element | |
| UNTOWARD INTRAOPERATIVE EVENT CODE (ELBOW REPLACEMENT) | Data Element | |
| UNTOWARD INTRAOPERATIVE EVENT CODE (HIP REPLACEMENT) | Data Element | |
| UNTOWARD INTRAOPERATIVE EVENT CODE (KNEE REPLACEMENT) | Data Element | To top |
| UNTOWARD INTRAOPERATIVE EVENT CODE (SHOULDER REPLACEMENT) | Data Element | |
| UNTOWARD INTRAOPERATIVE EVENT CODE FOR ANKLE REPLACEMENT | Attribute | |
| UNTOWARD INTRAOPERATIVE EVENT CODE FOR ELBOW REPLACEMENT | Attribute | |
| UNTOWARD INTRAOPERATIVE EVENT CODE FOR HIP REPLACEMENT | Attribute | |
| UNTOWARD INTRAOPERATIVE EVENT CODE FOR KNEE REPLACEMENT | Attribute | |
| UNTOWARD INTRAOPERATIVE EVENT CODE FOR SHOULDER REPLACEMENT | Attribute | |
| UNWANTED MEDICINE SCHEME INDICATOR (retired) | Attribute | |
| Upper Gastrointestinal Cancer Care Spell | Supporting Information | |
| URBAN OR RURAL INDICATOR (retired) | Attribute | |
| UREA REDUCTION RATIO | Data Element | |
| Urgent Care Service Accessed Date and Time | Supporting Information | |
| URGENT CARE SERVICE ACCESSED DATE AND TIME | Data Element | |
| URGENT CARE SERVICE ACCESSED TYPE | Data Element | |
| URGENT CARE SERVICE ACCESSED TYPE | Attribute | |
| Urgent Transport Request (retired) | Supporting Information | To top |
| URIC ACID CONCENTRATION | Data Element | |
| Urinary Albumin Level | Supporting Information | |
| URINARY ALBUMIN LEVEL TESTING METHOD | Data Element | |
| URINE CREATININE CONCENTRATION | Data Element | |
| URINE DIPSTICK TEST (BLOOD) | Data Element | |
| URINE DIPSTICK TEST (PROTEIN) | Data Element | |
| URINE KtV | Data Element | |
| Urine Output | Supporting Information | |
| URINE OUTPUT LAST 24 HOURS | Data Element | |
| URINE OUTPUT LAST HOUR | Data Element | |
| URINE UREA CONCENTRATION | Data Element | |
| URINE VOLUME | Data Element | |
| Urological Cancer Care Spell | Supporting Information | |
