ESTIMA, Braz. J. Enterostomal Ther., São Paulo, v17, e1919, 2019 1 Cross-cultural adaptation, content validity index, and interobserver reliability of The SACS TM Instrument: Assessing and classifying peristomal skin lesion Adaptação cultural, índice de validade de conteúdo e confiabilidade interobservadores do The SACSTM Instrument: Assessing and classifying peristomal skin lesion Adaptación cultural, índice de validez de contenido y confiabilidad interobservador delThe SACS TM Instrument: Assessing and classifying peristomal skin lesion Néria Invernizzi Silveira 1,* Leni Boghossiam Lanza 2 ORIGINAL ARTICLE 1.Universidade Estadual de Campinas – Faculdade de Enfermagem – Campinas/SP - Brazil 2.Pontifícia Universidade Católica de São Paulo – Faculdade de Ciências Médicas e da Saúde – Sorocaba/SP – Brazil Correspondence author: E-mail: neriasilveira@gmail.com Received: Jun. 03, 2019 | Accepted: Sept. 06, 2019 ABSTRACT Objective: To adapt The SACS TM Instrument: assessing and classifying peristomal skin lesion to the Brazilian Portuguese language and to evaluate the Content Validity Index (CVI) and the interobserver reliability. Method: Methodological study with a quantitative approach. Two translators developed the cross-cultural adaptation for translation and two others for back-translation. The interobserver agreement was achieved by the analysis of 41 photographs by two enterostomal therapist nurses. Results: SACS TM obtained CVI = 1. The agreement for classification of lesions was 41.18% and K = 0.2444, for topographic location was 46.67% and K = 0.3151, resulting in considerable and extremely significant agreement, with p < 0.001. Conclusion: The study certified the version adapted to the Brazilian Portuguese language and attested that it requires the qualification of enterostomal therapists and generalist nurses in clinical practice. DESCRIPTORS: Validation studies. Ostomy. Wounds. Lesions. Enterostomal therapy. https://doi.org/10.30886/estima.v17.768_IN ORCID IDs Silveira N https://orcid.org/0000-0003-1677-4206 HOW TO CITE Silveira NI; Lanza LB (2019) Cross-cultural adaptation, content validity index, and interobserver reliability of The SACSTM Instrument: Assessing and classifying peristomal skin lesion. ESTIMA, Braz. J. Enterostomal Ther., 17: e1919. https://doi.org/10.30886/estima. v17.768_IN