birth defect

imperfection or problem that is present from birth (such as a missing limb, etc.)

A congenital disorder is any medical condition that is present at birth. However, a congenital disorder can be recognized before birth (prenatally), at birth, years later, or never. The term congenital does not imply or exclude a genetic cause. Congenital disorders can be a result of genetic abnormalities, the environment, a mixture of both, errors of morphogenesis, or unknown factors.
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Birth defect n. A physiological or structural abnormality that develops at or before birth and is present at the time of birth, especially as a [more]Birth defect - Community and Resources

Noun
1. a defect that is present at birth
(synonym) congenital anomaly, congenital defect, congenital disorder, congenital abnormality
(hypernym) defect
(hyponym) imperforate anus

Synonyms and related words:
abnormality, acute disease, affection, affliction, ailment, allergic disease, allergy, atrophy, bacterial disease, blight, cardiovascular disease, chronic disease, circulatory disease, complaint, complication, condition, congenital defect, defect, deficiency disease, deformity, degenerative disease, disability, disease, disorder, distemper, endemic, endemic disease, endocrine disease, epidemic disease, functional disease, fungus disease, gastrointestinal disease, genetic disease, handicap, hereditary disease, iatrogenic disease, illness, indisposition, infectious disease, infirmity, malady, malaise, morbidity, morbus, muscular disease, neurological disease, nutritional disease, occupational disease, organic disease, pandemic disease, pathological condition, pathology, plant disease, protozoan disease, psychosomatic disease, respiratory disease, rockiness, secondary disease, seediness, sickishness, sickness, signs, symptomatology, symptomology, symptoms, syndrome, the pip, urogenital disease, virus disease, wasting disease, worm disease,