This code system https://fhir.nhs.uk/CodeSystem/Ambulance-ReceivingLocationEPR defines the following codes:

CodeDisplay
01Emergency department
02Same day emergency care
03Frailty service
04Rapid access hot clinics
05Urgent treatment centre
06Primary care service (in hours)
07Primary care service (out of hours / hub)
08Medical assessment unit
09Surgical assessment unit
10Maternity unit (>20/40)
11Gynaecology (inc. <20/40)
12Mental health assessment unit / place of safety
13Paediatric assessment unit
14Oncology assessment unit
15Renal assessment unit
16Direct Ward Admission
17Major Trauma Service
18Cardiac angioplasty service
19Acute stroke service
20Intensive care unit
21Intensive care unit (paediatric)
22Burns service
23Spinal injury service
24Liver transplant unit
25ECMO Unit
26Hyperbaric medicine service
27Infectious diseases unit
28Mental health facility
29Hospice
30Intermediate care facility
31Alcohol dependency assessment / treatment unit
32Bariatric living space
33Respiratory Service
34Sexual Assault Referral Centre
35Community residential mental health service
36Homeless shelter
37Refused transport
38Home
39Residential care facility without 24 hour nursing care (e.g. residential home)
40Residential care facility with 24 hour nursing care (e.g. nursing home)
41Police custody
42Custodial services e.g. prison / detention centre
43Helipad
44Event medical facility
45Hospital Mortuary
46City or Regional Mortuary
47Incident Mortuary