• A broad classification of types of diagnoses which may be made as a result of Accident and Emergency Attendance. The full description is made up of codes from three tables - ACCIDENT AND EMERGENCY DIAGNOSIS, Accident and Emergency Attendance: ANATOMICAL AREAS and Accident and Emergency Attendance: ANATOMICAL SIDE. ANATOMICAL AREA (a classification of parts of the human body) and ANATOMICAL SIDE (an indication of the side of the human body) together give the Anatomical Site of clinical problems presented at an Accident and Emergency Attendance.
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• The Accident and Emergency Diagnosis Tables have been mapped to diagnoses in SNOMED CT®, and are available on request from the Technology Reference Data Update Distribution Service (TRUD).

• The SNOMED CT® subset original ID is 28511000000135 , and
• The SNOMED CT® subset name is Concepts mapped to Data Dictionary A&E Diagnosis Codes.

• 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.
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• ACCIDENT AND EMERGENCY DIAGNOSIS is a six character code, comprising:
  
  

  Diagnosis Condition	n2
  Sub-Analysis	n1
  Accident and Emergency Attendance - ANATOMICAL AREA	n2
  Accident and Emergency Attendance - ANATOMICAL SIDE	an1

  Accident and Emergency Diagnosis - Diagnosis Condition

  Diagnosis Condition	Code
  Laceration	01
  Contusion/abrasion*	02
  Soft tissue inflammation	03
  Head injury*	04
  Dislocation/fracture/joint injury/amputation*	05
  Sprain/ligament injury	06
  Muscle/tendon injury	07
  Nerve injury	08
  Vascular injury	09
  Burns and scalds*	10
  Electric shock	11
  Foreign body	12
  Bites/stings	13
  Poisoning* (including overdose)	14
  Near drowning	15
  Visceral injury	16
  Infectious disease*	17
  Local infection	18
  Septicaemia	19
  Cardiac conditions*	20
  Cerebro-vascular conditions	21
  Other vascular conditions	22
  Haematological conditions	23
  Central Nervous System conditions* (excluding strokes)	24
  Respiratory conditions*	25
  Gastrointestinal conditions*	26
  Urological conditions (including cystitis)	27
  Obstetric conditions	28
  Gynaecological conditions	29
  Diabetes and other endocrinological conditions*	30
  Dermatological conditions	31
  Allergy (including anaphylaxis)	32
  Facio-maxillary conditions	33
  ENT conditions	34
  Psychiatric conditions	35
  Ophthalmological conditions	36
  Social problem (includes chronic alcoholism and homelessness)	37
  Diagnosis not classifiable	38
  Nothing abnormal detected	39

  *Item sub-analysed

  Accident and Emergency Diagnosis - Sub-analysis

  Sub-analysis		Code
  Contusion/abrasion	- contusion - abrasion	1 2
  Head Injury	- concussion - other head injury	1 2
  Dislocation/fracture/joint injury/amputation	- dislocation - open fracture - closed fracture - joint injury - amputation	1 2 3 4 5
  Burns and scalds	- electric - thermal - chemical - radiation	1 2 3 4
  Poisoning	- prescriptive drugs - proprietary drugs - controlled drugs - other, including alcohol	1 2 3 4
  Infectious disease	- notifiable disease - non-notifiable disease	1 2
  Cardiac conditions	- myocardial ischaemia & infarction - other non-ischaemia	1 2
  Respiratory conditions	- bronchial asthma - other non-asthma	1 2
  Central Nervous System conditions	- epilepsy - other non-epilepsy	1 2
  Gastrointestinal conditions	- haemorrhage - acute abdominal pain - other	1 2 3
  Diabetes and other endocrinological conditions	- diabetic - other non-diabetic	1 2

  Anatomical Site

  Accident And Emergency Anatomical Area - Area

  Anatomical Area	Code
  Head and Neck
  Brain	01
  Head	02
  Face	03
  Eye	04
  Ear	05
  Nose	06
  Mouth, Jaw, Teeth	07
  Throat	08
  Neck	09
  Upper Limb
  Shoulder	10
  Axilla	11
  Upper Arm	12
  Elbow	13
  Forearm	14
  Wrist	15
  Hand	16
  Digit	17
  Trunk
  Cervical spine	18
  Thoracic	19
  Lumbosacral spine	20
  Pelvis	21
  Chest	22
  Breast	23
  Abdomen	24
  Back/buttocks	25
  Ano/rectal	26
  Genitalia	27
  Lower Limb
  Hip	28
  Groin	29
  Thigh	30
  Knee	31
  Lower leg	32
  Ankle	33
  Foot	34
  Toe	35
  Multiple Site	36
  Accident and Emergency Anatomical Side
  Left	L
  Right	R
  Bilateral	B
  Not applicable	8