Question: How should we code a sperm viability test known as an Eosin Y test? Is that the same test as a semen motility test (89310)?
Tennessee Subscriber
Answer: You should code the Eosin Y sperm viability test as 89398 (Unlisted reproductive medicine laboratory procedure).
The sperm viability test, also called a sperm vitality test, is not the same thing as semen motility (89310, Semen analysis; motility and count [not including Huhner test]). In fact, clinicians may order the sperm viability test based on the results of the semen motility analysis.
For instance: If the results of a sperm motility test, such as 89310, demonstrate motility lower than a certain threshold, such as 50 percent, the lab may perform an additional analysis to determine the number of dead sperm cells. This is the sperm viability test, and clinicians need the information because it is clinically significant whether immotile sperm is alive or dead.
A common method for this test is an Eosin-nigrosin staining technique, or dye exclusion test, which uses Eosin Y. Because there’s not a specific code for the test, you should use the unlisted code, 89398.