NEK9-related lethal skeletal dysplasia

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NEK9-related lethal skeletal dysplasia

ORPHA:464366Malformation syndrome

Also called Lethal skeletal dysplasia-fetal akinesia-contractures-thoracic dysplasia-pulmonary hypoplasia syndrome

What it is

NEK9-related lethal skeletal dysplasia is a rare, lethal, primary bone dysplasia characterized by fetal akinesia, multiple contractures, shortening of all long bones, short, broad ribs, narrow chest and thorax, pulmonary hypoplasia and a protruding abdomen. Short bowed femurs may also be associated.

Key facts

Prevalence
<1 / 1 000 000
Age of onset
Antenatal
Inheritance
Autosomal recessive
Classified as
Malformation syndrome

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.

Gene

NEK9Disease-causing germline mutation(s) (loss of function)

ICD-10 codes

Q68.8filed under a broader ICD-10 category — shared with 29 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 0014870OMIM 617022UMLS C5568141

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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