*Future Steps*

Regarding the next steps, it will be necessary to expand the use of this tool in other contexts, starting with community centers in Argentina and then in other Latin American countries with similar cultural background to identify common barriers and facilitators, to obtain a more representative functional data of this population. This could help to optimize delivery of health and rehabilitation services, to contribute to evidence-based policies, and to respond most adequately to children's and family's needs. Finally, we expect that after ongoing clinical application of TEA-CIFunciona version 1.0 in different settings, and based on feedback and lessons learned, future revisions will be required to include updates and recommendations not only from the professionals and caregivers' perspectives on daily functioning but from the children and youth with ASD perspectives as well.

**Supplementary Materials:** The following are available online at https://www.mdpi.com/article/ 10.3390/ijerph18073720/s1. Examples of translation strategies for ICF categories included in TEA-CIFfunciona version 1.0 for the components body functions, activities and participation and environmental factors.

**Author Contributions:** Conceptualization, S.B.N. and M.P.V. and V.S.; Methodology S.B.N., M.P.V. and V.S.; Software S.B.N. and M.P.V.; Formal Analysis S.B.N. and M.P.V.; Investigation S.B.N., M.P.V., P.J.C., M.B.M., P.P.B., C.L., M.G.U., A.E., Writing—Original Draft Preparation, S.B.N., M.P.V., P.J.C., M.B.M. and V.S.; Review, S.B.N., M.P.V., E.R. and V.S.; Writing & Editing, S.B.N., M.P.V. and V.S. All authors have read and agreed to the published version of the manuscript.

**Funding:** Maria Paula Vitale was funded by a Foundation Garrahan research fellow grant.

**Institutional Review Board Statement:** The study was approved by the Ethical Review Board of JPGH.

**Informed Consent Statement:** Informed consents were granted by all participants of this study.

**Data Availability Statement:** Due to privacy and confidentiality issues, we only share aggregated data in this study.

**Acknowledgments:** We express our thanks to all the children and their caregivers who participated in this study for their invaluable contribution.

**Conflicts of Interest:** The authors declare no conflict of interest.
