ICD-10-CM code "Q91.1": Trisomy 18, mosaicism (mitotic nondisjunction) (2024)

Overview

ICD-10 CodeQ91.1
DescriptionTrisomy 18, mosaicism (mitotic nondisjunction)
Hierarchy
  1. Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  2. Chromosomal abnormalities, not elsewhere classified (Q90-Q99)
  3. Trisomy 18 and Trisomy 13 (Q91)
  4. Trisomy 18, mosaicism (mitotic nondisjunction) (Q91.1)
Billable statusICD-10-CM Billable code

Excludes

  1. Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)

    Type 2inborn errors of metabolism (E70-E88)

  2. Chromosomal abnormalities, not elsewhere classified (Q90-Q99)

    Type 2mitochondrial metabolic disorders (E88.4-)

  3. Trisomy 18 and Trisomy 13 (Q91)
  4. Trisomy 18, mosaicism (mitotic nondisjunction) (Q91.1)

Includes

  1. Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  2. Chromosomal abnormalities, not elsewhere classified (Q90-Q99)
  3. Trisomy 18 and Trisomy 13 (Q91)
  4. Trisomy 18, mosaicism (mitotic nondisjunction) (Q91.1)