TRACCS (treatment and rehabilitation for adolescents and children with complex conditions service) at University College London Hospital (UCLH) is a nationally recognised service assessing and treating children and young people up to the age of 19 with complex presentations. These include children and young people living with chronic fatigue syndrome (ME/CFS), functional neurological disorder (FND), post covid-19 syndrome (known as long covid) and medically unexplained symptoms (MUS). Paediatrician referrals (for children and young people under 16 years) and GP referrals (for young people aged 16 and above) are welcome. Referral enquiries can be mailed to uclh.traccs@nhs.net.