This field contains the code for the main specialty of the consultant clinically managing the period of augmented care. This consultant is not necessarily the same as the one responsible for the hospital episode.

Where a patient is cared for by a team of specialists within an Intensive Care rota, this field contains the specialty of the team's clinical director.

Where there are several specialties involved but none is considered responsible, this field contains the specialty of the consultant admitting the patient to the period of augmented care.

If no specific consultant or team can be identified as organising the care associated with the ACP, then this should be the same as for the related consultant episode.

100 = General surgery

101 = Urology

110 = Trauma and orthopaedics

120 = Ear, nose and throat (ENT)

130 = Ophthalmology

140 = Oral surgery

141 = Restorative dentistry

142 = Paediatric dentistry (available from 1999-2000)

143 = Orthodontics

145 = Oral and maxillo facial surgery (available from 2004-05)

146 = Endodontics (available from 2004-05)

147 = Periodontics (available from 2004-05)

148 = Prosthodontics (available from 2004-05)

149 = Surgical dentistry (available from 2004-05)

150 = Neurosurgery

160 = Plastic surgery

170 = Cardiothoracic surgery

171 = Paediatric surgery

180 = Accident and emergency (A&E;)

190 = Anaesthetics

191 = Pain management (available from 1998-99 to 2003-04)

192 = Critical care medicine (available from 2004-05)

199 = Non-UK Provider - specialty function not known, treatment mainly surgical

300 = General medicine

301 = Gastroenterology

302 = Endocrinology

303 = Clinical haematology

304 = Clinical physiology

305 = Clinical pharmacology

310 = Audiological medicine

311 = Clinical genetics

312 = Clinical cytogenics and molecular genetics (available from 1990-91)

313 = Clinical immunology and allergy (available from 1991-92)

314 = Rehabilitation (available from 1991-92)

315 = Palliative medicine

320 = Cardiology

321 = Paediatric cardiology (available from 2004-05)

330 = Dermatology

340 = Respiratory medicine (also known as thoracic medicine)

350 = Infectious diseases

352 = Tropical medicine (available from 2004-05)

360 = Genito-urinary medicine

361 = Nephrology

370 = Medical oncology

371 = Nuclear medicine

400 = Neurology

401 = Clinical neuro-physiology

410 = Rheumatology

420 = Paediatrics

421 = Paediatric neurology

430 = Geriatric medicine

450 = Dental medicine (available from 1990-91)

460 = Medical opthalmology (available from 1993-94)

499 = Non-UK Provider - specialty function not known, treatment mainly medical

501 = Obstetrics (prior to 2004-05: Obstetrics for patients using a hospital bed or delivery facilities)

502 = Gynaecology

560 = Midwifery (available from October 1995)

600 = General Medical Practice

601 = General Dental Practice

610 = General practice with maternity function (available to 2003-04)

620 = General practice other than maternity (available to 2003-04)

700 = Learning disability (previously known as mental handicap)

710 = Mental illness

711 = Child and adolescent psychiatry

712 = Forensic psychiatry

713 = Psychotherapy

715 = Old age psychiatry (available from 1990-91)

800 = Clinical oncology (previously Radiotherapy)

810 = Radiology

820 = General pathology

821 = Blood transfusion

822 = Chemical pathology

823 = Haematology

824 = Histopathology

830 = Immunopathology

831 = Medical microbiology

832 = Neuropathology (available to 2003-04)

900 = Community medicine

901 = Occupational medicine

902 = Community health services - dental (available from 2004-05)

903 = Public health medicine (available from 2004-05)

904 = Public health dental (available from 2004-05)

950 = Nursing episode (available from 2002-03)

960 = Allied health professional episode (available from 2006-07)

null = Other maternity event

& = Not known