0009602 Abnormality of thumb phalanx	0009767 Aplasia/Hypoplasia of the phalanges of the hand
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0009658 Aplasia/Hypoplasia of the phalanges of the thumb

synonym

Absent/small thumb bones

Absent/underdeveloped thumb bones

0009629 Aplasia/Hypoplasia of the proximal phalanx of the thumb 2

0009659 Partial absence of thumb 3

0009660 Short phalanx of the thumb 3

0010026 Aplasia/Hypoplasia of the 1st metacarpal 2