Dyscalculia

**Definition:** Impaired ability in numerical concepts. These inabilities arise as a result of primary neurological lesion, are syndromic (e.g., GERSTMANN SYNDROME ) or acquired due to brain damage.

**Tree numbers:** - C10.597.606.150.550.700.250 - C23.888.592.604.150.550.700.250 - F03.625.374.188.700.250 - F03.625.562.700.250