How to Get Complex PTSD Treatment on the NHS (UK)
Can you get complex PTSD treated on the NHS? Yes. NICE's guideline tells services to give people with complex PTSD extra time, more sessions or longer ones, not a different queue. The route starts with your GP or, in England, a self-referral to NHS Talking Therapies.
Most of what comes up when you search this is either American, or a private clinic, or a leaflet from one trust that covers nowhere you live. This is the national version: what NICE actually says, the route in, and the sentence worth taking to your GP.
Is complex PTSD a real diagnosis in the UK?
Yes, and this is worth settling first, because some people are told it is not.
Complex PTSD is a diagnosis in the World Health Organization's ICD-11, code 6B41. The NHS uses the ICD system. What is true is that the American manual, DSM-5, does not include it, which is why so much online material says it "isn't officially recognised". That is an American statement. It is not a British one.
NICE's guideline on PTSD, NG116, defines it the ICD-11 way. You need all the core PTSD symptoms first, then three more on top:
- severe and pervasive problems regulating emotion
- persistent beliefs about yourself as diminished, defeated or worthless, with deep shame, guilt or failure
- persistent difficulty sustaining relationships and feeling close to others
That first condition matters. Without the core PTSD symptoms (re-experiencing, avoidance, a persistent sense of threat), it is not complex PTSD. If that is you, it may be worth reading this on BPD, because the two are confused constantly.
What does NICE recommend for complex PTSD?
The same core therapies as PTSD, with adjustments. That is the part almost nobody is told.
The therapies. For adults, NICE says to offer individual trauma-focused CBT, which includes cognitive processing therapy, cognitive therapy for PTSD, narrative exposure therapy and prolonged exposure therapy. For trauma that was not combat-related, it also says to offer EMDR to people presenting more than three months after the trauma. Both are typically delivered over 8 to 12 sessions, "but more if clinically indicated, for example if they have experienced multiple traumas".
The adjustment, recommendation 1.7.3. For people with additional needs, including those with complex PTSD, NICE tells services to:
- build in extra time to develop trust, by increasing the duration or the number of sessions according to the person's needs
- take into account the safety and stability of your circumstances, such as housing
- help you manage the things that get in the way of trauma-focused therapy, including dissociation, emotional dysregulation, relationship difficulties and negative self-perception
- plan the ongoing support you will need after treatment ends
Read that list again, because it is the most useful thing on this page. It means "you are too complex for our service" is not the end of the conversation. The guideline's answer to complexity is more time and more support, not no treatment.
Medication. NICE says to consider venlafaxine or an SSRI such as sertraline for adults with PTSD who prefer drug treatment, reviewed regularly. It is an option, not the first line. Trauma-focused therapy is.
The route, step by step
In England, there are two doors.
- NHS Talking Therapies (self-referral). You can refer yourself without seeing a GP. Services offer trauma-focused CBT and EMDR for PTSD. Search "NHS Talking Therapies" plus your area, or go through the NHS website. Be clear in the referral that the trauma was repeated or prolonged and that you have flashbacks, nightmares or constant alertness, because that shapes who assesses you.
- Your GP. Especially if there is self-harm, suicidal thinking, heavy dissociation, or you have already been through Talking Therapies. The GP can refer you to the community mental health team, and some areas have specialist trauma services.
In Wales, Traumatic Stress Wales coordinates trauma services. In Scotland, access is through your GP and local mental health services, and some health boards run specialist trauma services. The NICE guideline is written for England, but the evidence it is based on does not change at the border.
What to say to your GP
Keep it concrete. Something like:
"I think I may have complex PTSD. The trauma was repeated over years. I have flashbacks and nightmares, I'm on guard all the time, and I carry a constant sense that I'm worthless. I'd like to be assessed and referred for trauma-focused therapy. NICE guideline NG116 says people with complex PTSD should be offered extra sessions."
Bring examples, not adjectives. "I can't sit with my back to a door" lands harder than "I'm anxious".
Is there a test for complex PTSD?
There is a questionnaire, and it is useful, but it is not a diagnosis.
The International Trauma Questionnaire (ITQ) is the validated self-report measure for ICD-11 PTSD and complex PTSD, and many online "do I have CPTSD" quizzes are loosely based on it. A 2026 study compared it with a clinician's structured interview in 108 treatment-seeking veterans and found the questionnaire consistently reported higher symptoms. It was very good at catching people who had some trauma disorder (sensitivity 0.94), but the authors concluded it should not be used as a sole diagnostic tool.
So: a high score is a good reason to ask for an assessment. It is not the assessment.
How common is complex PTSD?
More common than most people assume. A population study of US adults found 3.8% met the criteria for complex PTSD, slightly more than the 3.4% who met the criteria for PTSD. Women were more likely than men to meet both. Cumulative childhood trauma was more strongly linked to complex PTSD than to PTSD, particularly abuse by caregivers, and people with complex PTSD reported substantially higher psychiatric burden.
There is no equivalent UK national figure yet, but there is no reason to think it is rare here either.
While you wait
Waits vary a great deal by area, and trauma therapy is not something to start in a crisis anyway. Useful things in the meantime:
- Learn to catch an emotional flashback. Many people with complex PTSD have flashbacks with no picture, only the old feeling. This is how to spot one and come back.
- Stabilise the basics. NICE's own list of what gets in the way of therapy (housing, dissociation, emotional dysregulation) is also a list of what to shore up now.
- If you are a parent, the fear of passing it on is usually loudest while you wait. Start here, and Grounded is the whole of it, written from the inside.
For the underlying difference between the two diagnoses, see PTSD vs complex PTSD.
Sources
- NICE, Post-traumatic stress disorder, guideline NG116 (2018): recommendations 1.6.16, 1.6.17, 1.6.19, 1.6.20, 1.6.25 and 1.7.3, and the definition of complex PTSD in "terms used in this guideline".
- World Health Organization, ICD-11, 6B41 Complex post traumatic stress disorder.
- Cloitre M, Hyland P, Bisson JI, Brewin CR, Roberts NP, Karatzias T, Shevlin M. ICD-11 Posttraumatic Stress Disorder and Complex Posttraumatic Stress Disorder in the United States: A Population-Based Study. Journal of Traumatic Stress, 2019; 32(6): 833 to 842.
- Melkevik O, Roberts N, Folke S. Self-reported versus clinician-evaluated symptom assessment and diagnosis of ICD-11 PTSD and CPTSD. European Journal of Psychotraumatology, 2026; 17(1).
Read from the guideline and published abstracts on 30 September 2026. If something here is out of date or wrong, tell me.
Nothing here is medical advice, it's lived experience, meant to sit alongside real support, not replace it. If you're struggling, please see the support resources. If you're in crisis in the UK, call Samaritans free on 116 123, or dial 999 in an emergency.