2007 ICD-9-CM Procedure 89.44 Other cardiovascular stress test 89.44 is a specific code that can be used to specify a procedure 89.44 contains 2 index entries View the full Volume 3 89.* hierarchy 89.44 also known as: Thallium stress test with or without transesophageal pacing Index entries containing 89.44: Test, testing (for) cardiac (vascular) stress 89.44 bicycle ergometer 89.43 Masters' two-step 89.42 treadmill 89.41 Thallium stress (transesophageal pacing) 89.44