Congenital Urinary System Abnormality

**Semantic type:** Disease or Syndrome

**Definition:** An abnormality of the kidney, ureter, bladder, or urethra that is present at birth. Representative examples include renal hypoplasia, renal agenesis, accessory kidney, absence of ureter, atresia of bladder neck, and atresia of urethra.

**Synonyms:** - Congenital Abnormality of the Urinary System - Congenital Abnormality of the Urinary System