CPT® Code 82928

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The CPT® Code 82928 refers to the analysis of gastric acid, specifically measuring either free or total acid levels in each specimen collected from the stomach. This procedure involves obtaining a sample of gastric acid, which is then subjected to laboratory analysis to identify its chemical composition. The analysis is crucial for understanding the acidity levels within the stomach, which can provide valuable insights into various gastrointestinal conditions. The distinction between free and total acid is significant; free acid refers to the hydrochloric acid that is not bound to other substances, while total acid includes both free acid and any acid that is bound to other components in the gastric fluid. This testing is essential for diagnosing and managing conditions related to gastric acid production and secretion.