The development of the International Classification of Functioning, Disability and Health for Child and Youth (ICF-CY) Core Sets: a systematic review.

After 15 years since the adoption of ICF-CY, it still finds some barriers to use. Concrete actions should be taken to develop further core sets following a rigorous methodology and to contribute implementing the ICF framework.Implication for rehabilitationIn 15 years since the implementation of International Classification of Functioning, Disability and Health for Child and Youth (ICF-CY), only 12 core sets have been developed.To develop ICF-CY Core Set, health professionals should follow methodology described by Cieza et al.Strong collaboration between low- and middle-income countries and high-income countries are recommended.