CPT® Code 88289

The CPT® Code 88289 refers to a laboratory procedure known as chromosome analysis, specifically an additional high-resolution study. This test is crucial for examining the chromosomal structure and number in a sample, which can provide valuable insights into genetic conditions. The procedure typically involves the use of peripheral whole blood or cord blood collected from a newborn. The blood sample is cultured using an elongation method, which is designed to enhance the yield of prophase and prometaphase cells. These specific phases of cell division are characterized by chromosomes that are less condensed, making it easier to identify distinct bands on the chromosomes. This high-resolution analysis allows for a more sensitive and comprehensive evaluation of the karyotype, which is the complete set of chromosomes in an individual. By utilizing this method, laboratory professionals can detect chromosomal abnormalities that may be associated with various genetic disorders, thereby aiding in diagnosis and further medical management.