O28 is the ICD-10 code for Abnormal findings on antenatal screening of mother. It is a three-character category divided into 8 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block O20–O29 (Other maternal disorders predominantly related to pregnancy) in Chapter XV, Pregnancy, childbirth and the puerperium.
- Code type
- Category (3 characters)
- Chapter
- XV · O00–O99
- Classification
- WHO ICD-10, 2019 version
What O28 excludes
Conditions that look similar but belong under another code.
- diagnostic findings classified elsewhere - see Alphabetical Index
- maternal care related to the fetus and amniotic cavity and possible delivery problems O30-O48
Subcodes of O28
- O28.0Abnormal haematological 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
- O28.4Abnormal 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
- O28.9Abnormal finding on antenatal screening of mother, unspecified
O28 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
DO28Abnorme fund ved graviditet
O28Raskaustarkastuksessa todetut poikkeavat löydökset
O28Abnorme Befunde bei der Screeninguntersuchung der Mutter zur pränatalen Diagnostik
O28Résultats anormaux constatés au cours de l'examen prénatal systématique de la mère
O28afwijkende bevindingen bij prenatale screening van moeder
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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