2007 ICD-9-CM Procedure 89.23 Urethral sphincter electromyogram 89.23 is a specific code that can be used to specify a procedure 89.23 contains 2 index entries View the full Volume 3 89.* hierarchy Index entries containing 89.23: Electromyogram, electromyography (EMG) (muscle) 93.08 urethral sphincter 89.23 Function study -- see also Scan, radioisotope urethral sphincter 89.23