2007 ICD-9-CM Procedure 94.21 Narcoanalysis 94.21 is a specific code that can be used to specify a procedure 94.21 contains 2 index entries View the full Volume 3 94.* hierarchy 94.21 also known as: Narcosynthesis Index entries containing 94.21: Narcoanalysis 94.21 Narcosynthesis 94.21