Vitamin D Assay Test Ordering Guidance

Vitamin D testing may NOT be used for routine screening or ordered as part of a panel and is subject to frequency limitations.  

If the patient is vitamin D deficient, further testing may be medically necessary only to ensure adequate replacement has been accomplished for this vitamin deficiency, although generally, other parameters are measured. Annual testing of the vitamin D status may be appropriate depending on indication and other mitigating factors. 

• Patient had prior low vitamin D levels and is on current treatment (document prior levels in the office note). 
• Patient has ongoing low vitamin D levels and needs to have dose adjusted.
• Patient has a chronic condition where vitamin D deficiency risk is high.

• LCD - Vitamin D Assay Testing (L34658) | cms.gov 
• Article - Billing and Coding: Vitamin D Assay Testing (A57736) | cms.gov