46,XY difference of sex development

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46,XY difference of sex development due to testicular 17,20-desmolase deficiency

ORPHA:443087Disease

Also called 46,XY disorder of sex development due to testicular 17,20-desmolase deficiency

What it is

Orphanet has not published a description for this disease yet. The identifiers, classification and cross-references below are still current.

Key facts

Prevalence
<1 / 1 000 000
Age of onset
Neonatal
Inheritance
Autosomal recessive
Classified as
Disease

Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.

Genes

AKR1C2Disease-causing germline mutation(s) (loss of function)

1 modifying gene — variants that can change how the disease behaves, not cause it

AKR1C4

ICD-10 codes

E29.1filed under a broader ICD-10 category — shared with 5 other rare diseases

ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.

Cross-references

MONDO 0013664OMIM 614279UMLS C0342473

Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.

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