AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2025 Issue 4; New/Revised ICD-10-CM Codes

Cannabinoid Hyperemesis Syndrome

Code R11.16, Cannabis hyperemesis syndrome, has been created to identify cannabis hyperemesis syndrome (CHS). CHS is a gastrointestinal condition associated with chronic cannabis use. It is characterized as severe nausea, vomiting and abdominal pain that occurs in a cyclical pattern of three or more times a year. Symptoms usually start suddenly, within 24 hours after the last use of cannabis, and generally lasts less than a week. Over the past several years, suspected cases of CHS have increased. This may be due to the increased popularity of the drug as well as the legalization of cannabis in...

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