O28
O28: Abnormal findings on antenatal screening of mother
Non-billable headerICD-10-CM
O28 is a non-billable header ICD-10-CM code for abnormal findings on antenatal screening of mother. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes1: never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- diagnostic findings classified elsewhere - see Alphabetical Index
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead O28
8 child codes. Green means billable.
- O28.0Abnormal hematological finding on antenatal screening of mother
- O28.1Abnormal biochemical finding on antenatal screening of mother
- O28.2Abnormal cytological finding on antenatal screening of mother
- O28.3Abnormal ultrasonic finding on antenatal screening of mother
- O28.4Abnormal radiological finding on antenatal screening of mother
- O28.5Abnormal chromosomal and genetic finding on antenatal screening of mother
- O28.8Other abnormal findings on antenatal screening of mother
- O28.9Unspecified abnormal findings on antenatal screening of mother