Neurodev disord, rel to patho var in glutamate recept genes

This code signifies a group of neurodevelopmental disorders characterized by intellectual disability, developmental delay, and often epilepsy or autism spectrum disorder, specifically caused by genetic mutations affecting glutamate receptor function. These variants disrupt critical neurotransmission pathways in the brain, leading to a range of neurological impairments.

Apply this code when documentation explicitly links a patient's neurodevelopmental disorder to identified pathogenic variants in glutamate receptor genes (e.g., GRIN2A, GRIA1, GRIK2). This diagnosis is typically established through genetic testing confirming a causative mutation.

• Ensure genetic testing results clearly state a pathogenic variant in a glutamate receptor gene.
• Do not use this code for neurodevelopmental disorders without confirmed genetic etiology involving glutamate receptors.
• Consider sequencing with specific manifestations of the disorder, such as F84.0 for autism spectrum disorder or G40.- for epilepsy, if documented.