ICD10 code of Schimke Immuno-Osseous Dysplasia and ICD9 code

Schimke immuno-osseous dysplasia (SIOD) does not have a unique, disease-specific code in the ICD-10 or ICD-9 systems. Instead, it is typically classified under broader categories for spondyloepiphyseal dysplasia or related skeletal dysplasias, such as ICD-10 code Q77.7 (Spondyloepiphyseal dysplasia) or ICD-9 code 756.59 (Other specified osteochondrodysplasias).

What is Schimke immuno-osseous dysplasia?

Schimke immuno-osseous dysplasia is an ultra-rare, multisystem genetic disorder characterized by disproportionate short stature, renal failure, and immune deficiency. Because Schimke immuno-osseous dysplasia is so rare, clinicians often utilize general diagnostic codes for skeletal abnormalities, which can sometimes complicate insurance billing and registry tracking for families within the DiseaseMaps.org community.

Is Schimke immuno-osseous dysplasia hereditary?

Yes, Schimke immuno-osseous dysplasia is an autosomal recessive disorder caused by mutations in the SMARCAL1 gene. This means that an individual must inherit two copies of the mutated gene—one from each parent—to manifest the condition. Genetic counseling is essential for families affected by Schimke immuno-osseous dysplasia to understand the 25% recurrence risk for future pregnancies.

What are the primary clinical features of Schimke immuno-osseous dysplasia?

The clinical presentation of Schimke immuno-osseous dysplasia is highly variable, but typically includes a combination of the following manifestations:

• Spondyloepiphyseal dysplasia leading to profound short stature.


• Progressive renal dysfunction, often necessitating transplant.


• T-cell immunodeficiency, increasing susceptibility to infections.


• Distinctive facial features and hyperpigmented skin macules.


• Cerebral ischemic events, which are a serious and known complication of Schimke immuno-osseous dysplasia.

Next steps

• Consult with a clinical geneticist to confirm the SMARCAL1 mutation.


• Coordinate care with a multidisciplinary team, including nephrologists, immunologists, and endocrinologists.


• Connect with the 4 members of the DiseaseMaps.org community who share experiences with Schimke immuno-osseous dysplasia.


• Monitor for early signs of renal involvement or neurological symptoms through regular imaging and blood work.

Medical disclaimer: This information is for educational purposes only and should not replace professional medical advice, diagnosis, or treatment.

References

• NIH Genetic and Rare Diseases Information Center (GARD): Schimke immuno-osseous dysplasia.


• Orphanet: Rare disease database entry for Schimke immuno-osseous dysplasia (ORPHA:3134).


• OMIM (Online Mendelian Inheritance in Man): #242900 Schimke immuno-osseous dysplasia.