ICD-10-CM · Chapter 15 · O00-O9A
O28 Abnormal findings on antenatal screening of mother
Excludes 1 (cannot be coded together)
- diagnostic findings classified elsewhere - see Alphabetical Index
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| O28..0 | Abnormal hematological finding on antenatal screening of mother | Yes |
| O28..1 | Abnormal biochemical finding on antenatal screening of mother | Yes |
| O28..2 | Abnormal cytological finding on antenatal screening of mother | Yes |
| O28..3 | Abnormal ultrasonic finding on antenatal screening of mother | Yes |
| O28..4 | Abnormal radiological finding on antenatal screening of mother | Yes |
| O28..5 | Abnormal chromosomal and genetic finding on antenatal screening of mother | Yes |
| O28..8 | Other abnormal findings on antenatal screening of mother | Yes |
| O28..9 | Unspecified abnormal findings on antenatal screening of mother | Yes |
Last reviewed: September 2026