raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:428

Autosomal dominant hypocalcemia

Synonyms: AD hypocalcemia

Type
Clinical subtype
Group
Subtype of disorder
Inheritance
Autosomal dominant
Age of onset
All ages
Status
active

A rare disorder of calcium homeostasis characterized by variable degrees of hypocalcemia with disproportionately low/normal levels of parathyroid hormone (PTH) and persistent normal or elevated renal calcium excretion.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enAutosomal dominant hypocalcemiaAD hypocalcemia
frHypocalcémie autosomique dominante
deHypokalzämie, autosomal-dominanteAD Hypokalzämie
esHipocalcemia autosómica dominanteHipocalcemia AD
itIpocalcemia autosomica dominanteIpocalcemia AD
nlAutosomaal dominante hypocalciëmieAD hypocalciëmie
ptHipocalcemia autossómica dominante
plAutosomalna dominująca hipokalcemiaAD hipokalcemia
csAutozomálně dominantní hypokalcémieAD hypokalcémie
ukАутосомно-домінантна гіпокальцієміяГіпокальціємія при артеріальній гіпертензії
zh常染色体显性低钙血症常染色体显性低钙血症
trOtozomal dominant hipokalsemiAD hipokalsemi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM601198Evalidated
OMIM615361BTNTvalidated
ICD-10E20.8NTBTattributedvalidated
ICD-115A50.0YNTBTindexvalidated
MONDO0018543Evalidated
UMLSC4048195Evalidated
GARD2877Evalidated

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 (2):

No children.

Codes that Orphanet moved or referred to this one:

4

Genes

2 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
CASRDisease-causing germline mutation(s) (gain of function) inAssessedHGNC:1514ENSG000000368286011993q13.33-q21.1calcium sensing receptor9920108[PMID]_12733714[PMID]_22789683[PMID]
GNA11Disease-causing germline mutation(s) (gain of function) inAssessedHGNC:4379ENSG0000008825613931319p13.3G protein subunit alpha 1123802516[PMID]
5

Prevalence and incidence

3 records
TypeClassValueAreaQualificationValidationSource
Point prevalence1-9 / 1 000 0000.161 / 100 000DenmarkValue and classValidated25753591[PMID]
Point prevalenceUnknown—WorldwideClass onlyValidatedORPHANET
Point prevalence1-9 / 100 0003.9 / 100 000United StatesValue and classValidated32386559[PMID]

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

30 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0000739Anxiety
HP:0000708Atypical behavior
HP:0040148Cortical myoclonus
HP:0000716Depression
HP:0003457EMG abnormality
HP:0000712Emotional lability
HP:0003473Fatigable weakness
HP:0002150Hypercalciuria
HP:0002901Hypocalcemia
HP:0003401Paresthesia
HP:0002356Writer's cramp
Frequent (79-30%)
HP:0002027Abdominal pain
HP:0001231Abnormal fingernail morphology
HP:0001597Abnormal nail morphology
HP:0002793Abnormal pattern of respiration
HP:0001596Alopecia
HP:0011675Arrhythmia
HP:0000958Dry skin
HP:0012608Hypermagnesiuria
HP:0002905Hyperphosphatemia
HP:0002917Hypomagnesemia
HP:0002615Hypotension
HP:0000121Nephrocalcinosis
Occasional (29-5%)
HP:0001635Congestive heart failure
HP:0000964Eczematoid dermatitis
HP:0002516Increased intracranial pressure
HP:0007400Irregular hyperpigmentation
HP:0000648Optic atrophy
HP:0004349Reduced bone mineral density
HP:0004372Reduced consciousness

Run the differential on the 11 obligate / very frequent terms

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Sources for this card