| IC OR HD UNIT INDICATOR | Attribute | |
| IDENTIFIER | Domain | |
| IDENTIFIER ALPHA NUMERIC 10 | Domain | |
| IDENTIFIER ALPHA NUMERIC 12 | Domain | |
| IDENTIFIER ALPHA NUMERIC 5 | Domain | |
| IDENTIFIER ALPHA NUMERIC 6 | Domain | |
| IDENTIFIER CHARACTER 14 | Domain | |
| IDENTIFIER NUMERIC 3 | Domain | |
| IDENTIFIER UNKNOWN | Domain | |
| IMAGE GUIDED SURGERY INDICATOR | Attribute | |
| IMAGE GUIDED SURGERY INDICATOR | Data Element | |
| IMAGE REQUEST DATE | Data Element | |
| Imaging Department | Supporting Information | |
| IMAGING EVENT NUMBER | Attribute | |
| IMAGING INTERVENTION INDICATOR | Attribute | To top |
| IMAGING MODALITY | Attribute | |
| Imaging or Radiodiagnostic Event | Supporting Information | |
| IMMUNISATION AGE GROUP | Attribute | |
| IMMUNISATION AGE GROUP (DIPHTHERIA TETANUS AND POLIO) | Data Element | |
| IMMUNISATION AGE GROUP (MEASLES MUMPS AND RUBELLA) | Data Element | |
| IMMUNISATION AGE GROUP (TUBERCULOSIS) | Data Element | |
| Immunisation Completion Date | Supporting Information | |
| IMMUNISATION COURSES COMPLETED TOTAL (MEASLES MUMPS AND RUBELLA) | Data Element | |
| IMMUNISATION COURSE TYPE | Class | |
| IMMUNISATION COURSE TYPE CODE | Attribute | |
| Immunisation Dose Given | Supporting Information | |
| IMMUNISATION DOSES GIVEN TOTAL (DIPHTHERIA TETANUS AND POLIO) | Data Element | |
| IMMUNISATION DOSES GIVEN TOTAL (TUBERCULOSIS) | Data Element | |
| IMMUNISATION DOSES GIVEN TOTAL (TUBERCULOSIS - PERSONS UNDER 1 YEAR) | Data Element | |
| Immunisation Programme | Supporting Information | To top |
| Immunisation Programme For Person | Supporting Information | |
| Immunisation Programmes Activity Data Set (KC50) | Data Set | |
| Immunisation Programmes Activity Data Set (KC50) Overview | Supporting Information | |
| IMMUNISATION PROGRAMME TYPE | Attribute | |
| IMMUNISATION PROGRAMME TYPE (TUBERCULOSIS) | Data Element | |
| IMMUNITY TEST RESULT | Attribute | |
| Immunotherapy | Supporting Information | |
| IMPLANT | Class | |
| IMPLANT BATCH OR LOT NUMBER | Data Element | |
| IMPLANT BATCH OR LOT NUMBER | Attribute | |
| IMPLANT CATALOGUE NUMBER | Data Element | |
| IMPLANT CATALOGUE NUMBER | Attribute | |
| IMPLANT CLASSIFICATION CODE | Attribute | |
| IMPLANT CLASSIFICATION CODE | Data Element | |
| IMPLANT CODE | Attribute | To top |
| IMPLANT MANUFACTURER | Data Element | |
| IMPLANT MANUFACTURER | Attribute | |
| IMPLANT MODEL | Attribute | |
| IMPLANT MODEL | Data Element | |
| Improving Access to Psychological Therapies Care Spell | Supporting Information | |
| IMPROVING ACCESS TO PSYCHOLOGICAL THERAPIES CARE SPELL END CODE | Data Element | |
| IMPROVING ACCESS TO PSYCHOLOGICAL THERAPIES CARE SPELL END CODE | Attribute | |
| Improving Access to Psychological Therapies Contact | Supporting Information | |
| Improving Access to Psychological Therapies Data Set | Data Set | |
| Improving Access to Psychological Therapies Data Set Overview | Supporting Information | |
| Improving Access to Psychological Therapies Diagram Overview | Supporting Information | |
| Improving Access to Psychological Therapies Service | Supporting Information | |
| INDEPENDENT HEALTH CARE FACILITY TYPE | Attribute | |
| INDEPENDENT HEALTH CARE PATIENT NUMBER | Attribute | |
| Independent Health Care Service Plan | Supporting Information | To top |
| INDEPENDENT REVIEW COMPLETION DATE (retired) | Attribute | |
| INDEPENDENT REVIEW PANEL REFERRAL (retired) | Attribute | |
| INDEPENDENT REVIEW REQUESTED DATE (retired) | Attribute | |
| index | Supporting Information | |
| INFECTION PROBABLE SOURCE | Attribute | |
| INFECTION RISK | Attribute | |
| INFORMATION AND ADVICE PROVIDED INDICATOR | Attribute | |
| INFORMATION AND ADVICE PROVIDED INDICATOR (GENERAL LIFESTYLE ADVICE) | Data Element | |
| INFORMATION AND ADVICE PROVIDED INDICATOR (STOP SMOKING ADVICE) | Data Element | |
| INFORMATION AND ADVICE PROVIDED INDICATOR (WEIGHT MANAGEMENT ADVICE) | Data Element | |
| INFORMATION AND ADVICE TYPE PROVIDED FOR NHS HEALTH CHECK | Attribute | |
| Information Standards Board for Health and Social Care | Supporting Information | |
| Information Standards Notice | Supporting Information | |
| Initial Contact | Supporting Information | |
| INITIAL CONTACT | Attribute | To top |
| INITIAL CONTACT | Data Element | |
| INITIAL CONTACT TYPE | Data Element | |
| INITIAL CONTACT TYPE | Attribute | |
| INITIAL CONTACT WITHIN FIVE DAYS | Attribute | |
| Initial Patient Contact Date | Supporting Information | |
| INITIAL PATIENT CONTACT DATE AND TIME | Data Element | |
| Initial Patient Contact Time | Supporting Information | |
| INJECTED IN LAST 4 WEEKS | Attribute | |
| INTENDED AGE GROUP | Data Element | |
| INTENDED CLINICAL CARE INTENSITY | Data Element | |
| INTENDED CLINICAL CARE INTENSITY CODE | Data Element | |
| INTENDED CLINICAL CARE INTENSITY CODE (MENTAL HEALTH) | Data Element | |
| INTENDED DELIVERY PLACE | Attribute | |
| INTENDED DIAGNOSTIC TEST | Data Element | |
| INTENDED MANAGEMENT | Data Element | To top |
| INTENDED MANAGEMENT | Attribute | |
| INTENDED MANAGEMENT CODE | Data Element | |
| Intended Patient Procedure | Supporting Information | |
| INTENDED PROCEDURE (OPCS) | Data Element | |
| INTENDED PROCEDURE (READ) | Data Element | |
| INTENDED PROCEDURE STATUS | Data Element | |
| INTENDED PROCEDURE STATUS CODE | Data Element | |
| INTENDED SITE CODE (OF TREATMENT) | Data Element | |
| INTENSIVE CARE LEVEL DAYS (retired) | Attribute | |
| INTENSIVE CARE LEVEL DAYS (retired) | Data Element | |
| INTENSIVE CARE OR HIGH DEPENDENCY BEDS INDICATOR | Attribute | |
| Interface Service | Supporting Information | |
| International Classification of Diseases (ICD) | Supporting Information | |
| International Classification of Diseases (ICD-10) (retired) | Supporting Information | |
| International Classification of Diseases for Oncology (ICD-O) | Supporting Information | To top |
| International Health Terminology Standards Development Organisation | Supporting Information | |
| INTERNET E-MAIL ADDRESS | Data Element | |
| INTERPRETER REQUIRED INDICATOR | Attribute | |
| Inter-Provider Transfer Administrative Minimum Data Set | Data Set | |
| Inter-Provider Transfer Administrative Minimum Data Set Overview | Supporting Information | |
| INTERVENTION CLASSIFICATION ASSOCIATION | Class | |
| INTERVENTION DATE (FIRST IN AMI CARE SPELL) | Data Element | |
| INTERVENTION SESSION TYPE | Attribute | |
| INTERVENTION SESSION TYPE (STOP SMOKING) | Data Element | |
| INTERVENTION SETTING | Attribute | |
| INTERVENTION SETTING (STOP SMOKING) | Data Element | |
| Intrauterine Device Application Date | Supporting Information | |
| Intrauterine Device Fitted Date | Supporting Information | |
| Introduction (retired) | Supporting Information | |
| INVASIVE CANCER SPECIAL TYPE INDICATOR | Attribute | To top |
| INVASIVE LESION SIZE | Attribute | |
| INVASIVE LESION SIZE | Data Element | |
| INVASIVE LESION SIZE (RADIOLOGICAL DETERMINATION) | Data Element | |
| INVESTIGATION EXAMINATION RESULT CODE | Attribute | |
| INVESTIGATION OR INTERVENTION REFERRAL DATE | Attribute | |
| INVESTIGATION RESULT DATE | Attribute | |
| INVESTIGATION RESULT DATE | Data Element | |
| INVESTIGATION RESULT TEXT | Attribute | |
| INVESTIGATION RESULT TIME | Attribute | |
| INVESTIGATION SCHEME IN USE | Data Element | |
| Investigation Transfer Date | Supporting Information | |
| INVESTIGATION TRANSFER DATE | Data Element | |
| INVITATION OFFER DATE SENT | Attribute | |
| INVITATION OFFER SENT INDICATOR | Attribute | |
| INVITATION OFFER SENT INDICATOR (NHS HEALTH CHECK) | Data Element | To top |
| INVITATION TYPE | Attribute | |
| Isotope Procedure Department | Supporting Information | |
| ITEM NAME | Attribute | |
| Item Of Service Delivery | Supporting Information | |
| IUD APPLICATION DATE | Attribute | |
