There are several problems in mycobacterial detection and drug susceptibility testing. One problem is that some test results are unnecessarily delayed because the tests are postponed until patients revisit clinics and pay the cost of the tests. Another problem is that critical and important tests are not re-quested because patients do not agree with their necessity. These inefficient practices may be due to the fee-for-service policy that the Korean medical insurance system is adopting and because many test methods used for mycobacterial infection have each test codes. Therefore, we propose a new test code encompassing several test items necessary for laboratory diagnosis of mycobacterial infection. This new code enables all necessary tests to be performed se-quentially without delay and also prevents perform-ance of unnecessary tests. These changes will help control tuberculosis without any further medical insurance financial input.