hypophosphatasia infantile hypophosphatasia https://github.com/monarch-initiative/mondo/issues/7693 https://github.com/monarch-initiative/mondo/issues/8755 https://www.malacards.org/card/hypophosphatasia_infantile infantile hypophosphatasia Infantile hypophosphatasia (I-HPP) is a very rare, severe form of hypophosphatasia characterized by infantile rickets without elevated serum alkaline phosphatase (ALP) activity and a wide range of clinical manifestations due to hypomineralization. OMIM:241500 MEDGEN:75677 UMLS:C0268412 DOID:0110914 MONDO:1010169 Orphanet:247651 SCTID:55236002 icd11.foundation:1832803655 GARD:0028133