2021 ICD-10-CM Code Q93

Monosomies and deletions from the autosomes, not elsewhere classified

Version 2021
Non-Billable Code

Not Valid for Submission

Q93 is a "header" nonspecific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of monosomies and deletions from the autosomes, not elsewhere classified. The code is NOT valid for the year 2021 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

ICD-10:Q93
Short Description:Monosomies and deletions from the autosomes, NEC
Long Description:Monosomies and deletions from the autosomes, not elsewhere classified

Code Classification

Specific Coding for Monosomies and deletions from the autosomes, NEC

Header codes like Q93 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for monosomies and deletions from the autosomes, nec:

  • Q93.0 - Whole chromosome monosomy, nonmosaicism (meiotic nondisjunction)
  • Q93.1 - Whole chromosome monosomy, mosaicism (mitotic nondisjunction)
  • Q93.2 - Chromosome replaced with ring, dicentric or isochromosome
  • Q93.3 - Deletion of short arm of chromosome 4
  • Q93.4 - Deletion of short arm of chromosome 5
  • Q93.5 - Other deletions of part of a chromosome
  • Q93.51 - Angelman syndrome
  • Q93.59 - Other deletions of part of a chromosome
  • Q93.7 - Deletions with other complex rearrangements
  • Q93.8 - Other deletions from the autosomes
  • Q93.81 - Velo-cardio-facial syndrome
  • Q93.82 - Williams syndrome
  • Q93.88 - Other microdeletions
  • Q93.89 - Other deletions from the autosomes
  • Q93.9 - Deletion from autosomes, unspecified

Information for Patients


Genetic Disorders

Genes are the building blocks of heredity. They are passed from parent to child. They hold DNA, the instructions for making proteins. Proteins do most of the work in cells. They move molecules from one place to another, build structures, break down toxins, and do many other maintenance jobs.

Sometimes there is a mutation, a change in a gene or genes. The mutation changes the gene's instructions for making a protein, so the protein does not work properly or is missing entirely. This can cause a medical condition called a genetic disorder.

You can inherit a gene mutation from one or both parents. A mutation can also happen during your lifetime.

There are three types of genetic disorders:

Genetic tests on blood and other tissue can identify genetic disorders.

NIH: National Library of Medicine


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Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)