ICD-10 Diagnosis Code Q99.0

Chimera 46, XX/46, XY

Diagnosis Code Q99.0

ICD-10: Q99.0
Short Description: Chimera 46, XX/46, XY
Long Description: Chimera 46, XX/46, XY
This is the 2017 version of the ICD-10-CM diagnosis code Q99.0

Code Classification
  • Congenital malformations, deformations and chromosomal abnormalities
    • Chromosomal abnormalities, not elsewhere classified (Q90-Q99)
      • Other chromosome abnormalities, not elsewhere classified (Q99)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code Q99.0 is grouped in the following Diagnostic Related Group(s) (MS-DRG v33.0)


Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

Present on Admission (POA) Additional informationCallout TooltipPresent on Admission
The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement.

The code Q99.0 is exempt from POA reporting.

  • Chimera
  • Chimera 46, XX; 46, XY

Index of Diseases and Injuries
References found for the code Q99.0 in the Index of Diseases and Injuries:

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:

  • Single-gene disorders, where a mutation affects one gene. Sickle cell anemia is an example.
  • Chromosomal disorders, where chromosomes (or parts of chromosomes) are missing or changed. Chromosomes are the structures that hold our genes. Down syndrome is a chromosomal disorder.
  • Complex disorders, where there are mutations in two or more genes. Often your lifestyle and environment also play a role. Colon cancer is an example.

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

NIH: National Library of Medicine

  • Genetics

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