Preimplantation Diagnosis

**Definition:** Determination of the nature of a pathological condition or disease in the OVUM; ZYGOTE; or BLASTOCYST prior to implantation. CYTOGENETIC ANALYSIS is performed to determine the presence or absence of genetic disease.

**Tree numbers:** - E01.370.378.625

**Synonyms:** - Diagnosis, Preimplantation - Diagnosis, Preimplantation Genetic - Preimplantation Genetic Diagnosis