Uniparental disomies

Definition

Any disease caused by the inheritance of two homologous copies of a chromosome from one parent, and none from the other parent. Confirmation is by observation of identical chromosomes pairs by genetic testing.

4 subordinate codes

• LD45.0Uniparental disomies of maternal origin
• LD45.1Uniparental disomies of paternal origin
• 4B4YOther specified diseases of the immune system
• 4B4ZDiseases of the immune system, unspecified

Nearby in Chromosomal anomalies, excluding gene mutations

• LD40Complete trisomies of the autosomes
• LD41Duplications of the autosomes
• LD42Polyploidies
• LD43Complete monosomies of the autosomes
• LD44Deletions of the autosomes
• LD46Imprinting errors
• LD47Balanced rearrangements or structural rearrangements
• LD50-LD5ZSex chromosome anomalies