To navigate sexual healthcare in England efficiently, it helps to understand how NHS England is structured. While the NHS feels like one giant national organisation, funding and service provision are highly localised. This explains why your access to PrEP or postal testing depends entirely on your postcode.

🏛️ Integrated Care Boards (ICBs)

In England, healthcare is commissioned (funded and organized) by Integrated Care Boards (ICBs) — which replaced Clinical Commissioning Groups (CCGs) in 2022. There are 42 ICBs across England, and they work alongside local councils to fund sexual health services.

Because local councils hold the public health budget for sexual health, the services available to you are determined by where you live:

  • The Postcode Lottery: One council might use SH:24 for postal testing with next-day delivery, while the neighbouring council might use a different provider or restrict kits to under-25s.
  • PrEP Funding: While PrEP is free on the NHS nationally, the capacity of local clinics to prescribe it depends on the funding their specific ICB/council allocates.

🪪 The NHS Number & GP Registration

Your NHS Number is a 10-digit identifier unique to you within the English, Welsh, and Isle of Man health systems.

Do you need an NHS Number for sexual healthcare? No. GUM (Genitourinary Medicine) clinics operate under a strict legal exemption. You do not need to prove residency, you do not need an NHS Number, and you do not need a GP to be tested, treated for an STI, given PEP, or prescribed PrEP.

Why you should get one anyway: Having an NHS Number makes interacting with the broader health system much easier, and it speeds up online postal testing services like SH:24.

How to get an NHS Number: You get an NHS Number by registering with a General Practitioner (GP).

  1. Find a local GP surgery.
  2. Ask to register as a patient (many now allow you to do this online via the NHS App).
  3. Important: Under NHS England guidelines, you do not need proof of address or proof of ID to register with a GP. If a receptionist turns you away for lacking documents, they are breaking NHS rules. You can firmly remind them of the national guidelines.

🔒 The Sexual Health Firewall

England operates a strict legal separation between your general medical records (held by your GP) and your sexual health records (held by the GUM clinic).

When you attend a GUM clinic, even if you give them your NHS Number, they are not allowed to share your attendance, your HIV status, your PrEP usage, or your STI results with your GP without your explicit, written consent.

This is designed to encourage people to seek care without fear of stigma or employer discovery.

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