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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Article Overview
This premium article focuses on cannabinoid hyperemesis syndrome, its clinical context, and how the condition is represented in diagnosis coding. It is aimed at coders, CDI staff, and billers who need to understand the documentation and coding implications of cannabis-related vomiting presentations, related electrolyte findings, and the need to clarify substance-use patterns when documentation is incomplete.
Why This Topic Matters
Accurate coding for cannabinoid hyperemesis syndrome depends on recognizing the documented condition and identifying related diagnoses and documentation gaps. The article helps readers understand what information is relevant in the chart so coded data more closely matches the provider’s documentation.
Article Sections
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Overview of Cannabinoid Hyperemesis Syndrome
Introduces the condition and describes its general clinical context in relation to cannabis use. It also summarizes how the topic has become more commonly encountered.
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Example Admission and Coding Query Considerations
Presents a documentation scenario involving nausea, vomiting, and related findings during a hospital admission. The section also discusses the need to clarify cannabis-use pattern when the record is not specific enough for complete coding.
What You Will Learn
- The general clinical context of cannabinoid hyperemesis syndrome
- How documentation of related symptoms and associated conditions may affect diagnosis coding
- Why provider clarification may be needed when cannabis-use details are incomplete
- How the article frames the coding of a hospital admission involving vomiting and cannabis use
Who Should Read This
- Medical coders
- CDI specialists
- Billers
- Coding auditors
- Clinical documentation improvement teams
Codes Discussed
Code Ranges Discussed
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