BackgroundMost feedback received by health services is positive. Our systematic scoping review mapped all available empirical evidence for how positive patient feedback creates healthcare change. Most included papers did not provide specific details on positive feedback characteristics.ObjectivesDescribe positive feedback characteristics by (1) developing heuristics for identifying positive feedback; (2) sharing annotated feedback examples; (3) describing their positive content.Methods200 items were selected from two contrasting databases: (1)https://careopinion.org.uk/; (2) National Health Service (NHS) Friends and Family Test data collected by an NHS trust. Preliminary heuristics and positive feedback categories were developed from a small convenience sample, and iteratively refined.ResultsCategories were identified: positive-only; mixed; narrative; factual; grateful. We propose a typology describing tone (positive-only, mixed), form (factual, narrative) and intent (grateful). Separating positive and negative elements in mixed feedback was sometimes impossible due to ambiguity. Narrative feedback often described the cumulative impact of interactions with healthcare providers, healthcare professionals, influential individuals and community organisations. Grateful feedback was targeted at individual staff or entire units, but the target was sometimes ambiguous.ConclusionPeople commissioning feedback collection systems should consider mechanisms to maximise utility by limiting ambiguity. Since being enabled to provide narrative feedback can allow contributors to make contextualised statements about what worked for them and why, then there may be trade-offs to negotiate between limiting ambiguity, and encouraging rich narratives. Groups tasked with using feedback should plan the human resources needed for careful inspection, and consider providing narrative analysis training.