CPT code 83722 describes a laboratory analytic procedure in which the lab analyst directly measures small dense low–density lipoprotein (LDL) cholesterol in a patient specimen; this is a clinical chemistry diagnostic test typically performed as a laboratory service in a clinical laboratory or hospital laboratory setting to assess atherogenic LDL particle burden.

For related coverage guidance, see recent payer policy updates: Salivary Hormone Testing, Parathyroid Hormone, Phosphorus, Calcium, and Magnesium Testing, Bone Turnover Markers Testing.