By Amanda Piern, CRC
Risk Adjustment Coder

ICD-10-CM significantly expanded the codes available for substance use disorders (SUDs). To properly code for these disorders, the diagnosis documentation should include the type of use disorder.

The ICD-10 index includes the following use disorders:

• Alcohol use
• Amphetamine-type substance use
• Cannabis use
• Cocaine use
• Hallucinogen use
• Inhalant use
• Opioid use
• Phencyclidine use
• Sedative
• Hypnotic
• Anxiolytic use
• Stimulant use (other) (unknown)
• Substance use (other) (unknown)

In each case, the provider must document the severity of…

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