- A broad classification of types of investigation which may be requested to assist with diagnosis as a result of Accident and Emergency Attendance.
- Certain items are sub-analysed to specify the diagnosis, investigation or treatment more precisely. These are marked with an asterisk. The diagnosis sub-analysis list follows the main diagnosis list, and the treatment sub-analysis list follows the main treatment list.
- It is recommended that computerised systems provide a minimum of six character fields for each category in order to accommodate more detailed information if necessary. Where fewer than six characters are required for coding, such as for investigations and treatments, it is recommended that the codes are left-justified and the unused fields left blank.
- ACCIDENT AND EMERGENCY INVESTIGATION is a six character code, comprising:
Investigation n2 (see Table below) Local sub-Analysis up to an4 Accident And Emergency Investigation Table
Investigation Code X-ray plain film 01 Electrocardiogram 02 Haematology 03 Cross match blood/group and save serum for later cross match 04 Biochemistry 05 Urinalysis 06 Bacteriology 07 Histology 08 Computerised Tomography - Retired 2006-04-01 09 Ultrasound 10 Magnetic Resonance Imaging 11 Computerised Tomography (excludes genitourinary contrast examination/tomography) 12 Genitourinary contrast examination/tomography 13 Clotting studies 14 Immunology 15 Cardiac enzymes 16 Arterial/capillary blood gas 17 Toxicology 18 Blood culture 19 Serology 20 Pregnancy test 21 Dental investigation 22 Refraction, orthoptic tests and computerised visual fields 23 None 24 Other 99 Items expected to be sub-analysed at discretion of individual Accident and Emergency Departments.