Syntaxin-binding protein 1-related disorder

This code represents a group of neurodevelopmental disorders caused by pathogenic variants in the STXBP1 gene, which encodes Syntaxin-binding protein 1. These disorders are characterized by a spectrum of neurological symptoms, including early-onset epileptic encephalopathy, intellectual disability, movement disorders, and autism spectrum disorder. The severity and specific manifestations can vary widely among affected individuals.

Use this code when documentation confirms a diagnosis of a Syntaxin-binding protein 1-related disorder, typically established through genetic testing identifying a pathogenic STXBP1 variant. This code is appropriate for patients presenting with the characteristic neurological features associated with STXBP1 encephalopathy or other STXBP1-related conditions.

• Ensure genetic testing results or a definitive clinical diagnosis by a neurologist or geneticist are present in the medical record.
• Do not confuse this with other genetic epileptic encephalopathies; confirm the specific gene mutation.
• Code all co-occurring conditions, such as specific types of epilepsy, intellectual disability, or autism spectrum disorder, in addition to this primary diagnosis.