O28.3 — Abnormal ultrasonic finding on antenatal screening of mother
Is O28.3 billable?
Yes — O28.3 is billable for FY2027. O28.3 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. O28.3 may be submitted for encounters from October 1, 2026 through September 30, 2027.
O28.3 at a glance
| Code | O28.3 |
|---|---|
| Description | Abnormal ultrasonic finding on antenatal screening of mother |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does O28.3 group to?
O28.3 sits in MDC 14 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 817Other Antepartum Diagnoses with O.R. Procedures with MCCsurgical
- 818Other Antepartum Diagnoses with O.R. Procedures with CCsurgical
- 819Other Antepartum Diagnoses with O.R. Procedures without CC/MCCsurgical
How is O28.3 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to O28.3. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Findings, abnormal, inconclusive, without diagnosis › antenatal screening of mother › ultrasonic
- Pregnancy › complicated by › abnormal, abnormality › findings on antenatal screening of mother › ultrasonic (single) (uterine)
Excludes1 — never code together — inherited from Chapter 15
The conditions below can never be reported together with O28.3 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- supervision of normal pregnancy (Z34.-)
Excludes1 — never code together — inherited from O28
The conditions below can never be reported together with O28.3 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- diagnostic findings classified elsewhere - see Alphabetical Index
Use additional code — inherited from Chapter 15
Report an additional code alongside O28.3 to fully describe the condition. O28.3 is sequenced first.
- code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
Excludes2 — not included here — inherited from Chapter 15
The conditions below are not part of O28.3, but a patient may have both at the same time. When documentation supports it, O28.3 and the excluded code may both be reported.
Excludes2 — not included here — inherited from O20-O29
The conditions below are not part of O28.3, but a patient may have both at the same time. When documentation supports it, O28.3 and the excluded code may both be reported.
How long has O28.3 existed?
O28.3 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
What other codes are in the O28 family? (7)
- 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
- O28.4Abnormal 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