O28.4 — Abnormal radiological finding on antenatal screening of mother
O28.4 is a billable, specific ICD-10-CM code for abnormal radiological finding on antenatal screening of mother. It is valid for submission on a claim.
Risk adjustment
O28.4 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
O28.4 is named in 1 Medicare coverage policy — 1 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
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How O28.4 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to O28.4.
- Findings, abnormal, inconclusive, without diagnosis›antenatal screening of mother›radiological
- Pregnancy›complicated by›abnormal, abnormality›findings on antenatal screening of mother›radiological
Related codes at this level
Codes that share O28. If O28.4 is not quite right, the correct code is usually one of these.
- 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
- O28.5Abnormal 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
Questions about O28.4
- Is O28.4 a billable ICD-10-CM code?
- Yes. O28.4 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does O28.4 sit in the tabular list?
- Pregnancy, childbirth and the puerperium (O00-O9A), in the block Other maternal disorders predominantly related to pregnancy (O20-O29).