O28

Non-Billable
ChapterO00–O9A
Rankcategory
Official Description

Abnormal findings on antenatal screening of mother

Metadata & Insights
  • Non-billable category (requires more specific sub-code).
  • Chapter 15: Pregnancy, Childbirth and the Puerperium (O00-O9A).

CH15 Parent Instructions

Excludes1(Not coded here. Use a different code.)
  • supervision of normal pregnancy (Z34.-)
Excludes2(Not included here. Code separately if applicable.)
  • mental and behavioral disorders associated with the puerperium (F53.-)
  • obstetrical tetanus (A34)
  • postpartum necrosis of pituitary gland (E23.0)
  • puerperal osteomalacia (M83.0)
Use Additional Code
  • code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.

O20-O29 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)
  • maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)

Instructional Notes

Excludes1(Not coded here. Use a different code.)
  • diagnostic findings classified elsewhere - see Alphabetical Index

Clinical Hierarchy

BillableHas subcodes
CH15Pregnancy, childbirth and the puerperium (O00-O9A)
O20-O29Other maternal disorders predominantly related to pregnancy (O20-O29)
O28Abnormal findings on antenatal screening of motherNot billable
O28.0Abnormal hematological finding on antenatal screening of motherBillable
O28.1Abnormal biochemical finding on antenatal screening of motherBillable
O28.2Abnormal cytological finding on antenatal screening of motherBillable
O28.3Abnormal ultrasonic finding on antenatal screening of motherBillable
O28.4Abnormal radiological finding on antenatal screening of motherBillable
O28.5Abnormal chromosomal and genetic finding on antenatal screening of motherBillable
O28.8Other abnormal findings on antenatal screening of motherBillable
O28.9Unspecified abnormal findings on antenatal screening of motherBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to O28:

blockO20-O29
Other maternal disorders predominantly related to pregnancy (O20-O29)
View context instructions
chapterCH15
Pregnancy, childbirth and the puerperium (O00-O9A)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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