ICD10 code of Potocki-Lupski syndrome and ICD9 code

Potocki-Lupski syndrome (PTLS) is a rare genetic disorder characterized by a duplication of a specific region on chromosome 17 (17p11.2). While there is no unique, disease-specific ICD-10 or ICD-9 code assigned exclusively to Potocki-Lupski syndrome, clinicians typically use the code Q92.3 (Chromosomal deletions/duplications, not elsewhere classified) in the ICD-10 system to document the condition.

What is the clinical classification of Potocki-Lupski syndrome?

Potocki-Lupski syndrome is a microduplication syndrome caused by the duplication of the 17p11.2 region. Because it is a rare genomic disorder rather than a single-organ disease, it does not have a dedicated ICD-10 code. In medical billing and clinical documentation, Potocki-Lupski syndrome is coded under Q92.3, which covers "Other trisomies and partial trisomies of the autosomes, not elsewhere classified." Previously, under the ICD-9 system, it was categorized under 758.5 (Other conditions due to autosomal anomalies). Accurate coding is essential for tracking the clinical journey of the 14 members of the DiseaseMaps community who have shared their experiences with this condition.

How is Potocki-Lupski syndrome diagnosed?

The diagnosis of Potocki-Lupski syndrome is confirmed through specialized genetic testing, most commonly a chromosomal microarray (CMA). This test detects the presence of the extra genetic material in the 17p11.2 region. Because the clinical presentation of Potocki-Lupski syndrome—which may include hypotonia, developmental delays, autism spectrum features, and congenital heart defects—can overlap with other genetic conditions, molecular testing is the gold standard for a definitive diagnosis. Early detection is vital for accessing appropriate multidisciplinary support.

What are the common features associated with Potocki-Lupski syndrome?

The clinical spectrum of Potocki-Lupski syndrome is highly variable, meaning no two individuals present in exactly the same way. However, several common features are frequently observed in patients:

• Hypotonia: Low muscle tone often observed in infancy, which may impact motor development.


• Developmental Delays: Variations in reaching milestones, particularly in speech and language acquisition.


• Feeding Difficulties: Challenges with oral-motor function or sensory issues related to eating.


• Cardiac Anomalies: Approximately 30-40% of individuals with Potocki-Lupski syndrome may have structural heart defects, such as an atrial septal defect.


• Sleep Disturbances: Difficulty with sleep initiation or maintenance is commonly reported by caregivers.


• Behavioral Characteristics: Traits often associated with autism spectrum disorder or attention deficit hyperactivity disorder (ADHD).

Is Potocki-Lupski syndrome hereditary?

In most documented cases, Potocki-Lupski syndrome occurs as a de novo (new) event in the affected individual, meaning it is not inherited from either parent. The duplication occurs due to an error during the formation of reproductive cells or early embryonic development. While rare instances of parental inheritance have been reported, a clinical geneticist can provide personalized recurrence risk counseling based on parental chromosomal testing. Understanding the genetic nature of Potocki-Lupski syndrome can help families navigate the emotional aspects of a rare diagnosis.

Next steps

• Consult with a clinical geneticist to review microarray results and discuss familial implications.


• Schedule a baseline evaluation with a pediatric cardiologist to rule out structural heart concerns.


• Connect with the 14 members of the Potocki-Lupski syndrome community on DiseaseMaps.org to share resources and experiences.


• Engage with early intervention programs, including physical, occupational, and speech-language therapy.

Medical disclaimer: This information is for educational purposes only and does not constitute medical advice, diagnosis, or treatment; always seek the advice of a physician or other qualified health provider with any questions regarding a medical condition.

References

• NIH Genetic and Rare Diseases Information Center (GARD): Potocki-Lupski syndrome overview.


• Orphanet: 17p11.2 duplication syndrome (ORPHA:168504).


• OMIM (Online Mendelian Inheritance in Man): Potocki-Lupski Syndrome; PTLS (MIM #610883).


• Potocki-Lupski Syndrome Foundation: Patient advocacy and research resources.