Figure 2From: Verifying causes of death in Thailand: rationale and methods for empirical investigation Data processing and quality control measures for selection and coding of underlying causes of death in the study sample. Incorrect = Change in ICD code at 3 or 4 character level, but no change at Mortality Tabulation List 1 level of aggregation. Disagreement = Change in ICD code resulting in change at Mortality Tabulation List 1 level of aggregation.Back to article page