Chromosome inversion in normal individual

This code represents a structural chromosomal abnormality where a segment of a chromosome is reversed end-to-end, but the individual typically exhibits no phenotypic abnormalities. It signifies a balanced chromosomal rearrangement, meaning there is no net gain or loss of genetic material.

Use this code when genetic testing confirms a balanced chromosomal inversion in an individual who presents without any associated clinical symptoms or developmental delays. Documentation should clearly state "balanced inversion" or "inversion, normal phenotype" based on karyotype or molecular genetic analysis results.

• Do not use this code if the inversion is associated with an abnormal phenotype or a specific genetic syndrome; a more specific code for the clinical manifestation would be appropriate.
• Ensure the documentation specifies "normal individual" or "balanced" to differentiate from unbalanced inversions or those causing clinical disease.
• This code is typically used for individuals identified as carriers during family studies or reproductive counseling.