Hypocalcemic rickets

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Hypocalcemic rickets

ORPHA:289103Clinical group

What it is

A group of rare genetic, vitamin D metabolism disorders characterized by hypocalcemia and rickets, and comprising of hypocalcemic vitamin D dependent rickets (VDDR-I) and hypocalcemic vitamin D resistant rickets (HVDRR). Characteristic clinical features include slow growth, bone pain and bone deformities. HVDRR is associated with resistance to vitamin D treatment.

Key facts

Classified as
Clinical group

Genes reported in subtypes

CYP27B1CYP2R1VDR

Orphanet records these genes on 2 more specific entries under this disorder, not on this entry itself:

A well-studied disease is usually split into subtypes, and the gene is curated on whichever one the evidence belongs to. Open a subtype to see which gene goes with it.

Cross-references

MONDO 0017323MONDO 17323UMLS C4302195

Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.

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