Reproducibility materials for definition-sensitive exact J69.0-coded mortality in the United States, 1999-2024

Reproducibility archive for a repeated cross-sectional analysis of publicly released aggregate U.S. resident death records from CDC WONDER. The archive contains the exact query manifest, archived aggregate exports, analysis contracts, analysis code, derived aggregate tables, publication figures, numerical-integrity checks, and a SHA256 inventory. It contains no individual-level or identifiable data. The archive supports the manuscript 'Definition sensitivity of exact J69.0-coded deaths in the United States: underlying cause versus any mention, 1999-2024.' The focal definition is exact ICD-10 code J69.0; J69.1, J69.8, and the parent J69 category were not used as focal inclusion definitions. CDC-derived source materials retain their original source status and attribution requirements. Funding: Guangxi Zhuang Autonomous Region Disease Prevention and Control Bureau, grant 2025068. The funder had no role in study design, data acquisition, analysis, interpretation, manuscript preparation, or the decision to submit.