Background: The presented evidence-based clinical practice guideline (CPG) is proposed as a National CPG using an evidence-based and formal CPG adaptation methodology. The purpose of this study was to adapt the international CPGs' recommendations for term and late preterm neonates with severe hyperbilirubinemia to suit the healthcare system in the Egyptian context. This CPG provides a framework for prediction, prevention and management of severe hyperbilirubinemia in newborn infants of 35 or more weeks of gestation. The quality of evidence and strength of recommendations are indicated. The guideline adaptation group was chosen from various Egyptian Universities. There was an active involvement of a Multidisciplinary Review Committee following a standardized process. The Neonatology Guideline Adaptation Group (NGAG) was assigned individual health questions to cover the different sections of the required CPG. A literature search for source CPGs was carried out. The NGAG studied several guidelines. Critical appraisal was done by AGREE II (Appraisal of Guidelines for Research and Evaluation) Instrument to rate and select the appropriate guidelines. Results: The NGAG decided to adapt mainly the American Academy of Pediatrics Guideline (2004Guideline ( , 2009Guideline ( & 2011 and for the questions which were not answered; the best and most relevant evidence available was used.Implementation tools were sought for to facilitate the application of the adapted CPG. Conclusion: The finalized CPG offers healthcare providers with applicable evidence-based guidance for severe neonatal hyperbilirubinemia in the Egyptian context. The Adapted ADAPTE method emphasized the value of collaborative clinical and methodological expert groups' efforts for adaptation of national guidelines.