Hypervitaminosis D

This code represents a toxic state resulting from excessive intake or accumulation of vitamin D in the body. Hypervitaminosis D leads to elevated calcium levels (hypercalcemia), which can cause various systemic symptoms and organ damage. It is typically a consequence of over-supplementation rather than dietary excess.

Use this code when documentation clearly indicates a diagnosis of vitamin D toxicity, often presenting with symptoms like nausea, vomiting, polyuria, polydipsia, and weakness, alongside laboratory confirmation of elevated serum 25-hydroxyvitamin D and hypercalcemia. This code is appropriate when the condition is directly attributed to an overdose of vitamin D supplements or medications.

• Ensure documentation specifies "hypervitaminosis D" and not simply elevated vitamin D levels without clinical toxicity.
• Code any associated manifestations of hypercalcemia (e.g., nephrocalcinosis, renal failure) separately.
• Distinguish from other causes of hypercalcemia; this code is specific to vitamin D excess.