raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:79651

Mild hyperphenylalaninemia

Synonyms: Mild HPA · Non-PKU HPA · mHPA

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

A rare form of phenylketonuria, an inborn error of amino acid metabolism, characterized by blood phenylalanine (Phe) concentrations of 120-600 micromol/L with or without clinical manifestations of impaired cognitive function, and behavioral and developmental disorders.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enMild hyperphenylalaninemiaMild HPA · Non-PKU HPA · mHPA
frHyperphénylalaninémie modéréeHMP · HPA modérée · HPA non PCU · Hyperphénylalaninémie modérée permanente · Non-PKU HPA · mHPA
deHyperphenylalaninämie, mildeMilde HPA · Non-PKU HPA · mHPA
esHiperfenilalaninemia leveHPA leve · HPA no PKU · mHPA
itIperfenilalaninemia lieveHPA lieve · HPA non-PKU · mHPA
nlMilde hyperfenylalaninemieMilde HPA · Niet-PKU HPA · mHPA
ptHiperfenilalaninemia ligeiraHPA ligeira · HPA não-PKU · mHPA
plHiperfenylalaninemia łagodnaŁagodna HPA · mHPA · Non-PKU HPA
csMírná hyperfenylalaninémieMírná HPA · Non-PKU HPA · mHPA
ukЛегка гіперфенілаланінеміяmHPA · Мяка ГФА · Не-ФКУ ГФА
zh轻型高苯丙氨酸血症= en
trHafif hiperfenilalaninemimHPA · Hafif HPA · PKU olmayan HPA

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM261600NTBTvalidated
ICD-10E70.1NTBTattributedvalidated
ICD-115C50.0YNTBTindexvalidated
MONDO0019335Evalidated
UMLSC5680207Evalidated

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 (1):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalenceUnknown—WorldwideClass onlyNot yet validatedORPHANET

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