Code
Hierarchy
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Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
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Q90-Q99 Chromosomal abnormalities, not elsewhere classified (Q90-Q99)
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Q91 Trisomy 18 and Trisomy 13
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Q91.0 Trisomy 18, nonmosaicism (meiotic nondisjunction)
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Q91.1 Trisomy 18, mosaicism (mitotic nondisjunction)
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Q91.2 Trisomy 18, translocation
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Q91.3 Trisomy 18, unspecified
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Q91.4 Trisomy 13, nonmosaicism (meiotic nondisjunction)
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Q91.5 Trisomy 13, mosaicism (mitotic nondisjunction)
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Q91.6 Trisomy 13, translocation
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Q91.7 Trisomy 13, unspecified
-
-
-
Notes
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Codes from this chapter are not for use on maternal records