raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:300547

Autosomal recessive infantile hypercalcemia

Synonyms: Familial infantile hypercalcemia with suppressed intact parathyroid hormone · IIH · Idiopathic infantile hypercalcemia · Infantile hypercalcaemia type 1

Type
Disease
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Infancy, Neonatal
Status
active

A rare, genetic, phosphocalcic metabolism disorder characterized by early-onset hypercalcemia, hypophosphatemia, hypercalciuria, decreased intact parathyroid hormone serum levels and medullary nephrocalcinosis, typically manifesting with failure to thrive, hypotonia, vomiting, constipation and/or polyuria.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enAutosomal recessive infantile hypercalcemiaFamilial infantile hypercalcemia with suppressed intact parathyroid hormone · IIH · Idiopathic infantile hypercalcemia · Infantile hypercalcaemia type 1
frHypercalcémie infantile autosomique récessiveHII · Hypercalcémie infantile familiale avec diminution de PTHi · Hypercalcémie infantile familiale avec diminution de parathormone intacte · Hypercalcémie infantile idiopathique
deHyperkalzämie, infantile, autosomal-rezessiveFamiliäre infantile Hyperkalzämie mit supprimiertem intakten Parathyroidhormon · IIH · Idiopathische infantile Hyperkalzämie · Infantile Hyperkalzämie Typ 1
esHipercalcemia del lactante autosómica recesivaHipercalcemia del lactante familiar con supresión de la hormona paratiroidea intacta · Hipercalcemia infantil idiopática · Hipercalcemia infantil tipo 1
itIpercalcemia infantile autosomica recessivaIpercalcemia infantile idiopatica · IIH · Ipercalcemia infantile di tipo 1 · Ipercalcemia infantile familiare con diminuzione dell'ormone paratiroideo intatto
nlAutosomaal recessieve infantiele hypercalciëmieFamiliale infantiele hypercalciëmie met onderdrukt intact parathyroïdhormoon · IIH · Idiopathische infantiele hypercalciëmie · Infantiele hypercalciëmie type 1
ptHipercalcémia da infância autossómica recessiva
plAutosomalna recesywna hiperkalcemia dziecięca= en
csAutozomálně recesivní infantilní hyperkalcémieFamiliární infantilní hyperkalcémie s potlačenými intaktními paratyreoidálními hormony
ukАутосомно-рецесивна інфантильна гіперкальцієміяСімейна дитяча гіперкальціємія з пригніченням інтактного паратиреоїдного гормону
zh常染色体隐性遗传性婴儿高钙血症家族性婴儿高钙血症伴甲状旁腺激素受抑
trOtozomal resesif infantil hiperkalsemiİntakt paratiroid hormonu baskılanmış ailesel infantil hiperkalsemi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM143880BTNTvalidated
OMIM616963BTNTvalidated
ICD-10E83.5NTBTattributedvalidated
ICD-115C64.5NTBTattributedvalidated
MONDO0000212Evalidated
MONDO212Evalidated
UMLSC4329374Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (4):

No children.

4

Genes

2 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
CYP24A1Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:2602ENSG0000001918612606520q13.2cytochrome P450 family 24 subfamily A member 121675912[PMID]
SLC34A1Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:11019ENSG000001311831823095q35.3solute carrier family 34 member 126047794[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families12 casesWorldwideCase(s)ValidatedORPHANET
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card