2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Injury And Poisoning 800-999 > Toxic Effects Of Substances Chiefly Nonmedicinal As To Source 980-989 > 2008 ICD-9-CM Diagnosis 988 Toxic effect of noxious substances eaten as food  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM 988 can be accessed here. 988 is a non-specific code that cannot be used to specify a diagnosis ICD9Data's sister site ProcedureCodes.com launches with the 2008/09 CPT® codes - read more on the ICD9Data.com blog. 988 excludes: allergic reaction to food, such as: gastroenteritis (558.3) rash (692.5, 693.1) food poisoning (bacterial) (005.0-005.9) toxic effects of food contaminants, such as: aflatoxin and other mycotoxin (989.7) mercury (985.0)