ICD-10-CM
ICD-10 code for Dependence (on) (syndrome) nitrous oxide: F19.20
The ICD-10-CM index points "Dependence (on) (syndrome) nitrous oxide" to F19.20, Other psychoactive substance dependence, uncomplicated. F19.20 is a billable code.
Source: CDC ICD-10-CM FY2027 Alphabetic Index file dated June 16, 2026. Publisher page
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