ICD-10 was first mandated for use in the UK in 1995.[19] In 2010 the UK Government made a commitment to update the UK mandated version of ICD-10 every three years.[20] In line with this, the ICD-10 4th Edition was approved for NHS implementation on 1 April 2012 by the Information Standards Board for Health and Social Care.[21] Due to the World Health Organization announcing a major update to the 2016 version of ICD-10; the planned release and use of ICD-10 5th Edition was postponed from 2015 until 2016.[20] As such, ICD-10 5th Edition will become the mandated diagnostic classification in the UK on 1 April 2016.[22]