Q00–Q99: Congenital Malformations, Deformations and Chromosomal Abnormalities
Chapter 17 of ICD-10-CM 2027, 1,095 codes in 12 blocks.
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Chapter instructions
Excludes2: not included here, code separately if applicable
- inborn errors of metabolism (E70-E88)
Codes in this chapter
All codesBillable only900 results
- Q89.1Congenital malformations of adrenal gland
- Q89.2Congenital malformations of other endocrine glands
- Q89.3Situs inversus
- Q89.4Conjoined twins
- Q89.7Multiple congenital malformations, not elsewhere classified
- Q89.81Kabuki syndrome
- Q89.89Other specified congenital malformations
- Q89.9Congenital malformation, unspecified
- Q90.0Trisomy 21, nonmosaicism (meiotic nondisjunction)
- Q90.1Trisomy 21, mosaicism (mitotic nondisjunction)
- Q90.2Trisomy 21, translocation
- Q90.9Down syndrome, unspecified
- Q91.0Trisomy 18, nonmosaicism (meiotic nondisjunction)
- Q91.1Trisomy 18, mosaicism (mitotic nondisjunction)
- Q91.2Trisomy 18, translocation
- Q91.3Trisomy 18, unspecified
- Q91.4Trisomy 13, nonmosaicism (meiotic nondisjunction)
- Q91.5Trisomy 13, mosaicism (mitotic nondisjunction)
- Q91.6Trisomy 13, translocation
- Q91.7Trisomy 13, unspecified
- Q92.0Whole chromosome trisomy, nonmosaicism (meiotic nondisjunction)
- Q92.1Whole chromosome trisomy, mosaicism (mitotic nondisjunction)
- Q92.2Partial trisomy
- Q92.5Duplications with other complex rearrangements
- Q92.61Marker chromosomes in normal individual
- Q92.62Marker chromosomes in abnormal individual
- Q92.7Triploidy and polyploidy
- Q92.8Other specified trisomies and partial trisomies of autosomes
- Q92.9Trisomy and partial trisomy of autosomes, unspecified
- Q93.0Whole chromosome monosomy, nonmosaicism (meiotic nondisjunction)
- Q93.1Whole chromosome monosomy, mosaicism (mitotic nondisjunction)
- Q93.2Chromosome replaced with ring, dicentric or isochromosome
- Q93.3Deletion of short arm of chromosome 4
- Q93.4Deletion of short arm of chromosome 5
- Q93.51Angelman syndrome
- Q93.52Phelan-McDermid syndrome
- Q93.59Other deletions of part of a chromosome
- Q93.7Deletions with other complex rearrangements
- Q93.81Velo-cardio-facial syndrome
- Q93.82Williams syndrome
- Q93.88Other microdeletions
- Q93.89Other deletions from the autosomes
- Q93.9Deletion from autosomes, unspecified
- Q95.0Balanced translocation and insertion in normal individual
- Q95.1Chromosome inversion in normal individual
- Q95.2Balanced autosomal rearrangement in abnormal individual
- Q95.3Balanced sex/autosomal rearrangement in abnormal individual
- Q95.5Individual with autosomal fragile site
- Q95.8Other balanced rearrangements and structural markers
- Q95.9Balanced rearrangement and structural marker, unspecified