Final answer:
Charting by exception (CBE) is a documentation method in healthcare where only abnormal patient responses or deviations from standard care are documented, rather than routine or normal findings.
Step-by-step explanation:
Charting by exception (CBE) is a method of documentation used in the healthcare field. The key principle behind CBE is that normal findings or routine care are not extensively documented. Instead, this approach focuses on documenting only the abnormal patient responses or variances from the standard of care. Therefore, the correct definition of CBE in the context of your question is that abnormal patient responses are highlighted. This helps in streamlining the documentation process and emphasizes the deviations that need more attention and possibly intervention.