Female with more than three X chromosomes

This code identifies a chromosomal abnormality in a female patient characterized by the presence of more than the typical two X chromosomes (e.g., XXX, XXXX). These conditions, often referred to as poly-X syndromes or polysomy X, can lead to a range of developmental and physical features, though many individuals may have mild or no apparent symptoms.

Apply this code when documentation confirms a diagnosis of a female with three or more X chromosomes based on karyotype analysis. This typically occurs following genetic testing prompted by developmental delays, learning disabilities, or specific physical characteristics.

• Ensure the patient's sex is documented as female and the karyotype explicitly states more than two X chromosomes.
• Do not confuse with Turner syndrome (monosomy X) or Klinefelter syndrome (XXY), which are distinct chromosomal disorders.
• Code any associated clinical manifestations or congenital anomalies separately, if present and documented.