Spanish English Portuguese

Congenital Abnormalities

Interactive App

Polysyndactyly and Synpolydactyly » Fingers Q70.4

Definition:

POLYSYNDACTYLY
Poly [Q69 .-] and Syn [Q70 .-] dactyly on the same limb.
If at different limbs of the same person, code Poly [Q69 .-] and Syn [Q70 .-] dactiylies separately
SYNPOLYDACTYLY: Defined as syndactyly of fingers 3 and 4 of the hand and/or toes 4 and 5, with an extra finger implanted in the fusion of the digits.
Notes:
POLYSYNDACTYLY
The diagnosis of polysyndactyly differs from that of synpolydactyly. It is, however, advisable to use the same code Q70.4 for both, to facilitate their retrieval from the databases.
SYNPOLYDACTYLY: A rare monogenic autosomal dominant anomaly, {OMIM 186000}. As ICD10 lacks an adequate code, it is recommended to use the same code Q70.4 as polysyndactyly.
Images:
SYNPOLYDACTYLY
Image 1
(Photo and X-ray)
Right hand with duplication of first proximal phalanx of third finger and fusion between distal phalanges of extra finger and fourth finger. Which means syndactyly of fingers 3 and 4 and extra finger included in the syndactyly.
Image 2
(Clinical picture)
Partial duplication of finger 3 with fenestrated syndactyly and separate nails of fingers 2-3 and extra-4. It can either be considered as a synpolydactyly or as a duplication of finger 3 with disruptive fusions, despite absence of band-like scars.

Notes:

Image:

Images