O28
Non-billableAbnormal findings on antenatal screening of mother
O28 is the ICD-10-CM code for Abnormal findings on antenatal screening of mother. It is a non-billable category code — use a more specific child code such as O28.0 for billing.
- Status
- Header (non-billable)
- Chapter
- O00-O9A
- Subcodes
- 8
- Edition
- FY2026
O00-O9A Pregnancy, childbirth and the puerperium
Excludes1 — not coded here
- •diagnostic findings classified elsewhere - see Alphabetical Index
Frequently asked questions
- What is ICD-10 code O28?
- O28 is the ICD-10-CM code for "Abnormal findings on antenatal screening of mother". It falls under O00-O9A Pregnancy, childbirth and the puerperium.
- Is O28 a billable code?
- No — O28 is a non-billable header code. Use a more specific child code (such as O28.0) for billing.
- What is excluded from O28?
- Excludes1 (not coded here): diagnostic findings classified elsewhere - see Alphabetical Index.
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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