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ICD-10-CM Diagnosis Codes →
section notes
17. Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99) →
section notes
Q90-Q99 Chromosomal abnormalities, not elsewhere classified (Q90-Q99) →
section notes
Q91 Trisomy 18 and Trisomy 13 →
section notes
Q91.0   Trisomy 18, nonmosaicism (meiotic nondisjunction)
Q91.1   Trisomy 18, mosaicism (mitotic nondisjunction)
Q91.2   Trisomy 18, translocation
Q91.3   Trisomy 18, unspecified
Q91.4   Trisomy 13, nonmosaicism (meiotic nondisjunction)
Q91.5   Trisomy 13, mosaicism (mitotic nondisjunction)
Q91.6   Trisomy 13, translocation
Q91.7   Trisomy 13, unspecified
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