NICE quality standards describe high-priority areas for quality improvement in a defined care or service area. Each standard consists of a prioritised set of specific, concise and measurable statements. They draw on existing guidance, which provides an underpinning, comprehensive set of recommendations, and are designed to support the measurement of improvement. This quality standard covers the recognition, assessment, care and treatment of mental health problems in women during pregnancy and the postnatal period (up to 1 year after childbirth). It also includes providing pre-conception support and advice for women with an existing mental health problem who might become pregnant, and the organisation of mental health services needed in pregnancy and the postnatal period. This quality standard is endorse by NHS England, and supported by the Royal College of Midwives and the Royal College of Obstetricians and Gynaecologists.