Q91.1 - Trisomy 18, mosaicism (mitotic nondisjunction)
- Applicable to Trisomy 18, mosaicism (mitotic nondisjunction)
- The 2025 edition of ICD10-CM Q91.1 became effective on October 1, 2024.
- This is the American ICD10-CM version of Q91.1 - other international versions of ICD10 Q91.1 may differ.
- Q91.1 is a Billable / Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The following codes above Q91.1 contain annotation back-references that may be applicable to Q91.1:
Chapter: Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities
Section: Q90-Q99 Chromosomal abnormalities, not elsewhere classified
Category: Q91 Trisomy 18 and Trisomy 13
Billable/Specific Code
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Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
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