O28.1
ICD-10-CMAbnormal biochemical finding on antenatal screening of mother
This code signifies an abnormal result from biochemical tests performed during pregnancy to screen for potential fetal anomalies or maternal conditions. It indicates a finding that deviates from the expected range, prompting further investigation or monitoring. This is a non-specific code for an abnormal finding, not a definitive diagnosis.
Use this code when antenatal screening tests, such as maternal serum alpha-fetoprotein (MSAFP), triple screen, quad screen, or cell-free DNA (cfDNA) screening, reveal an abnormal biochemical marker. Documentation should clearly state the abnormal finding from the screening test, even if the specific anomaly is not yet confirmed.
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