Mild spondyloepiphyseal dysplasia

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Mild spondyloepiphyseal dysplasia due to COL2A1 mutation with early-onset osteoarthritis

ORPHA:93279Disease

What it is

Mild spondyloepiphyseal dysplasia due to COL2A1 mutation with early-onset osteoarthritis is a type 2 collagen-related bone disorder characterized by precocious, generalized osteoarthritis (with onset as early as childhood) and mild, dysplastic spinal changes (flattening of vertebrae, irregular endplates and wedge-shaped deformities) resulting in a mildly short trunk.

Key facts

Prevalence
<1 / 1 000 000
Age of onset
Adolescent, Adult, Childhood
Inheritance
Autosomal dominant
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.

Gene

COL2A1Disease-causing germline mutation(s)

ICD-10 codes

Q77.7filed under a broader ICD-10 category — shared with 47 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.

Related health topics

Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.

Cross-references

MONDO 0011496OMIM 604864UMLS C4275063

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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