Distal arthrogryposis type 1

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Distal arthrogryposis type 1

ORPHA:1146Malformation syndrome

Also called DA1 · Digitotalar dysmorphism

What it is

A form of arthrogryposis characterized by contractures of the distal regions of the hands and feet in the absence of a primary neurological and/or muscle disease affecting limb function. Facial involvement is limited to a small mouth and impaired mouth opening. No additional anomalies are reported.

Key facts

Age of onset
Antenatal, Neonatal
Inheritance
Autosomal dominant
Classified as
Malformation syndrome

Signs and symptoms

These ranges are how often a sign appears across everyone diagnosed, not a prediction for one person — most people have some of these and not others. Orphanet also records findings that are specifically absent in this disease; those are in the data but not listed here.

Genes

MYBPC1Disease-causing germline mutation(s)
MYH3Disease-causing germline mutation(s)
NALCNDisease-causing germline mutation(s)
TNNI2Disease-causing germline mutation(s)
TNNT3Disease-causing germline mutation(s)
TPM2Disease-causing germline mutation(s)

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

GARD 787MESH C535378MONDO 0015240OMIM 108120OMIM 126050OMIM 614335OMIM 618435OMIM 619110UMLS C0220662

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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