ICD-10 Code: Q91.1 – Trisomy 18, mosaicism (mitotic nondisjunction)

ICD-10 code Q91.1 corresponds to Trisomy 18, mosaicism (mitotic nondisjunction). This code is classified under the chapter Q91 Trisomy 18 and Trisomy 13, which is part of the Q90-Q99: Chromosomal abnormalities, not elsewhere classified category.

The parent chapter is Congenital malformations, deformations and chromosomal abnormalities.