Chronic vomiting tied to long-term marijuana use has now has been codified by health officials seeking to diagnose and track the mysterious disorder, which has been increasingly seen in emergency rooms this decade.

In October, the World Health Organization (WHO) gave what’s known as cannabis hyperemesis syndrome (CHS) its own diagnostic code, which also has been adopted by the U.S. Centers for Disease Control and Prevention.

CHS, which has sent its sufferers to urgent care and emergency rooms, is characterized by symptoms that include ongoing nausea, vomiting, belly pain and decreased appetite and weight loss.

The more rare complications of CHS…

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