A new Centers for Disease Control and Prevention analysis identified 199,565 emergency department (ED) visits involving cannabis hyperemesis syndrome (CHS) in the United States from January 2023 through May 2026 and found that new coding helped to document patient cases of CHS. Researchers evaluated the time period before and after October 1, 2025, when the dedicated ICD-10-CM diagnosis code for CHS (R11.16) went into effect. The introduction of the ICD-10 code provided a direct way …
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