2007 ICD-9-CM Procedure 89.69 Monitoring of coronary blood flow 89.69 is a specific code that can be used to specify a procedure 89.69 contains 3 index entries View the full Volume 3 89.* hierarchy 89.69 also known as: Coronary blood flow monitoring by coincidence counting technique Index entries containing 89.69: Measurement coronary blood flow 89.69 Monitoring circulatory NEC 89.69 coronary blood flow (coincidence counting technique) 89.69