# congenital intrinsic factor deficiency

> vitamin B12 deficiency that is characterized by megaloblastic anemia due to the absence of gastric intrinsic factor which results in abnormal vitamin B12 absorption

**Wikidata**: [Q18553437](https://www.wikidata.org/wiki/Q18553437)  
**Source**: https://4ort.xyz/entity/congenital-intrinsic-factor-deficiency


## References

1. Disease Ontology
2. Monarch Disease Ontology release 2018-06-29
3. UniProt
4. [Identifiers.org](https://registry.identifiers.org/registry/doid)