Despite its importance, using ICD codes in nursing can present several challenges: 1. Complexity: The ICD system is extensive and can be complex, making it difficult for nurses to find the exact code that fits a patient's condition. 2. Training: Proper training is essential to ensure that nurses are proficient in using ICD codes correctly. This requires time and resources that may not always be available. 3. Updates: The ICD is periodically updated, and keeping up with these changes can be challenging for nursing staff.