Vitamin D Testing
UnitedHealthcare's Medicare Advantage Vitamin D Testing medical policy, in the November 2026 bulletin effective 2026-11-01, removed ICD-10 diagnosis codes C88.4, Z79.60, Z79.61, Z79.620 through Z79.624, Z79.630 through Z79.634, Z79.64, and Z79.69 from the applicable codes list, and updated the CMS related documents list and clinical evidence references. Billing teams should stop relying on the removed diagnosis codes when submitting Vitamin D testing claims for Medicare Advantage members and confirm that remaining claims carry a supported diagnosis.