F17.2Non-Billable (Header)Nicotine dependenceChild CodesF17.20Nicotine dependence, unspecifiedF17.21Nicotine dependence, cigarettesF17.22Nicotine dependence, chewing tobaccoF17.29Nicotine dependence, other tobacco productCode Hierarchy└F17Nicotine dependence└F17.2Nicotine dependence└F17.2Nicotine dependence