Short answer · Medically reviewed summary · Last updated: 2026-05-08
Trisomy 13 Syndrome, also known as Patau Syndrome, is officially classified under ICD-10 code Q91.7 (Patau's syndrome, unspecified) and is represented by the legacy ICD-9 code 758.1. These medical classification codes are essential for billing, clinical documentation, and international health reporting for individuals living with this chromosomal condition. What is the clinical significance of the Trisomy 13 Syndrome classification? In clinical practice, the ICD-10 code Q91.7 is used to identify Trisomy 13 Syndrome, a condition characterized by the presence of an extra copy of chromosome 13 in some or all of the body's cells.
ICD10 code of Trisomy 13 Syndrome / Patau Syndrome and ICD9 code
ICD-10 and ICD-9 codes for Trisomy 13 Syndrome / Patau Syndrome, with classification details for clinicians, coders and patients.
Trisomy 13 Syndrome, also known as Patau Syndrome, is officially classified under ICD-10 code Q91.7 (Patau's syndrome, unspecified) and is represented by the legacy ICD-9 code 758.1. These medical classification codes are essential for billing, clinical documentation, and international health reporting for individuals living with this chromosomal condition.
What is the clinical significance of the Trisomy 13 Syndrome classification?
In clinical practice, the ICD-10 code Q91.7 is used to identify Trisomy 13 Syndrome, a condition characterized by the presence of an extra copy of chromosome 13 in some or all of the body's cells. While the ICD-9 code 758.1 provided the foundation for tracking this diagnosis historically, the transition to ICD-10 allows for more granular data regarding the specific presentation of Patau Syndrome. Accurate coding ensures that families and healthcare providers can access appropriate resources and specialized medical interventions.
How is Trisomy 13 Syndrome medically categorized?
Trisomy 13 Syndrome is a chromosomal abnormality that disrupts normal development. The diagnosis is typically confirmed through cytogenetic testing, such as karyotyping, which reveals the specific nature of the trisomy. Medical professionals categorize the syndrome based on how the extra chromosome appears in the patient's cells:
- Full Trisomy 13: The most common form, where every cell contains an extra chromosome 13.
- Mosaic Trisomy 13: Only a percentage of cells contain the extra chromosome.
- Partial Trisomy 13: Only a portion of an extra chromosome 13 is present.
What is the current community perspective on Patau Syndrome?
At DiseaseMaps.org, we recognize the unique journey of families affected by this diagnosis. Currently, 31 members within our community have shared their experiences with Trisomy 13 Syndrome. Connecting with others who have navigated the complexities of Patau Syndrome can provide invaluable emotional support and practical insights into managing the multisystem challenges often associated with the condition.
Next steps
- Consult with a clinical geneticist to discuss the specific chromosomal findings and recurrence risks.
- Maintain a detailed medical file using the ICD-10 code Q91.7 to streamline communication between specialists.
- Join the DiseaseMaps.org community to connect with other families affected by Trisomy 13 Syndrome.
- Reach out to organizations like the Support Organization for Trisomy (SOFT) for specialized resources.
Medical disclaimer: This information is for educational purposes only and does not constitute medical advice, diagnosis, or treatment; always seek the advice of your physician or qualified health provider with any questions regarding a medical condition.
References
- NIH Genetic and Rare Diseases Information Center (GARD): Patau Syndrome.
- Orphanet: Trisomy 13 (ORPHA:3393).
- OMIM (Online Mendelian Inheritance in Man): Chromosome 13, Trisomy 13 (601813).
- World Health Organization (WHO): International Classification of Diseases, 10th Revision (ICD-10).
