In the Editorial by Chew-Graham CA et al, Medically unexplained symptoms: continuing challenges for primary care. Br J Gen Pract 2017; DOI: https://doi.org/10.3399/bjgp17X689473, the second paragraph stated: ‘The annual NHS cost for MUS in adults of working age in England was estimated to be £2.89 billion in 2008/2009 (11% of total NHS spend)’. This should have stated: ‘The annual NHS cost for MUS in adults of working age in England was estimated to be £2.89 billion in 2008/2009 (approximately 10% of total NHS expenditure on these services for the working age population)’. The online version has been corrected.