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ICD-10-CM: Coding of Chromosomal Abnormalities reflects the exponential growth of genomic testing and therapeutics. Diagnosis of these conditions often occurs in the obstetrical and pediatric settings. Accurate and complete coding requires detailed understanding of how abnormalities are characterized (mosaicism, numerical and structural abnormalities), how tests are used to determine carrier or susceptibility status, and interpreting the unique language used by providers to identify conditions.
