What does the range 86805-86849 indicate in coding?

The range 86805-86849 corresponds to tissue typing services in CPT coding. Tissue typing involves testing for specific human leukocyte antigens (HLAs) used to determine compatibility for organ transplants and blood transfusions. These codes cover various laboratory tests to assess whether a donor's tissue is compatible with that of the recipient.

In contrast, the other options pertain to completely different medical services. Bone density tests, for instance, are assigned a separate range of codes that specifically focus on assessing bone mineral density. Vision services are categorized under codes that pertain to eye examinations and treatments, while cardiac imaging services are found within a different range related to imaging procedures of the heart. Each of these categories is distinct in both purpose and coding, highlighting the specificity required in the CPT coding system.