What replaced cpt code 83891 in 2013?

In 2013, CPT code 83891, which was used for the quantitative measurement of catecholamines in urine, was replaced by CPT codes 83880 and 83881. These new codes specifically distinguish between the measurement of catecholamines and their metabolites in urine, providing more precise billing and reporting options for laboratory services. The change aimed to improve the specificity of testing and enhance the accuracy of laboratory data.