Objective: To explore how content analysis can be used together with linking rules to link texts on assessment and intervention to the International Classification of Functioning, Disability and Health version for children and youth (ICF-CY).

Methods: Individual habilitation plans containing texts on assessment and intervention for children with disabilities and their families were linked to the ICF-CY using content analysis. Texts were first divided into meaning units in order to extract meaningful concepts. Meaningful concepts that were difficult to link to ICF-CY codes were grouped, and coding schemes with critical attributes were developed. Meaningful concepts that could not be linked to the ICF-CY were assigned to the categories "not-definable" and "not-covered", using coding schemes with mutually exclusive categories.

Results: The size of the meaning units selected resulted in different numbers and contents of meaningful concepts. Coding schemes with critical attributes of ICF-CY codes facilitated the linking of meaningful concepts to the most appropriate ICF-CY codes. Coding schemes with mutually exclusive categories facilitated the classification of meaningful concepts that could or could not be linked to the ICF-CY.

Conclusion: Content analysis techniques can be applied together with linking rules in order to link texts on assessment and intervention to the ICF-CY.

Objective: This study explored how professionals in interdisciplinary teams perceived the implementation of the World Health Organization's International Classification of Functioning, Disability and Health, version for Children and Youth (ICF-CY) in Swedish habilitation services. Design: Descriptive longitudinal mixed-methods design. Methods: Following participation in a 2-day in-service training on the ICF-CY, 113 professionals from 14 interdisciplinary teams described their perceptions of the implementation of the ICF-CY at 3 consecutive time-points: during in-service training, after 1 year, and after 2.5 years. Results: Implementation of the ICF-CY in daily work focused on assessment and habilitation planning and required adaptations of routines and materials. The ICF-CY was perceived as useful in supporting analyses and in communication about children's needs. Professionals also perceived it as contributing to new perspectives on problems and a sharpened focus on participation. Conclusion: Professionals indicated that the ICF-CY enhanced their awareness of families' views of child participation, which corresponded to organizational goals for habilitation services. An implementation finding was a lack of tools fitting the comprehensive ICF-CY perspective. The study points to the need for ICF-CY-based assessment and intervention methods focusing on child participation.

 Early childhood intervention and habilitation services for children with disabilities operate on an interdisciplinary basis. It requires a common language between professionals, and a shared framework for intervention goals and intervention implementation. The International Classification of Functioning, Disability and Health (ICF) and the version for children and youth (ICF-CY) may serve as this common framework and language. This overview of studies implemented by our research group is based on three research questions: Do the ICF-CY conceptual model have a valid content and is it logically coherent when investigated empirically? Is the ICF-CY classification useful for documenting child characteristics in services? What difficulties and benefits are related to using ICF-CY model as a basis for intervention when it is implemented in services? A series of studies, undertaken by the CHILD researchers are analysed. The analysis is based on data sets from published studies or master theses. Results and conclusion show that the ICF-CY has a useful content and is logically coherent on model level. Professionals find it useful for documenting children's body functions and activities. Guidelines for separating activity and participation are needed. ICF-CY is a complex classification, implementing it in services is a long-term project