2007 ICD-9-CM Procedure 99.18 Injection or infusion of electrolytes 99.18 is a specific code that can be used to specify a procedure 99.18 contains 2 index entries View the full Volume 3 99.* hierarchy Index entries containing 99.18: Infusion (intra-arterial) (intravenous) electrolytes 99.18 Injection (into) (hypodermically) (intramuscularly) (intravenously) (acting locally or systemically) electrolytes 99.18