Congenital cutaneous mastocytosis

**Inclusion terms:** - Congenital diffuse cutaneous mastocytosis - Congenital maculopapular cutaneous mastocytosis - Congenital urticaria pigmentosa

**Excludes1:** - cutaneous mastocytosis NOS (D47.01) - diffuse cutaneous mastocytosis (with onset after newborn period) (D47.01) - malignant mastocytosis (C96.2-) - systemic mastocytosis (D47.02) - urticaria pigmentosa (non-congenital) (with onset after newborn period) (D47.01)