Nonverbal learning disorder is a condition frequently encountered by clinicians treating learning disabilities, even though it is not included in any official classification. The symptomatic constellation of nonverbal learning disorder and its presumed etiopathogenesis are described. Andrea's case, in which nonverbal learning disorder is included in the differential diagnosis, is then described. We believe this case is particularly useful both for the longitudinal observation that allows us to see developmental changes and because of the difficulty in clearly and immediately categorizing it, a situation common to many cases of neurodevelopmental disorders.
Finally, we discuss the limitations of having overly rigid nosographic labels and the risk of forcing that child's characteristics into the ICD code we have chosen.