O16 is the ICD-10 code for Unspecified maternal hypertension. It is a three-character category that is not subdivided further. It belongs to the block O10–O16 (Oedema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium) in Chapter XV, Pregnancy, childbirth and the puerperium.
- Code type
- Category (3 characters)
- Chapter
- XV · O00–O99
- Classification
- WHO ICD-10, 2019 version
O16 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
O16Uspesifisert hypertensjon hos mor
DO16Forhøjet blodtryk uden nærmere specificering under graviditet
- DO169hypertension under graviditet UNS
O16Määrittämätön raskaudenaikainen korkea verenpaine
O16Nicht näher bezeichnete Hypertonie der Mutter
O16Hypertension de la mère, sans précision
O16niet-gespecificeerde hypertensie van moeder
Listed through more specific codes:
- O16.1Unspecified maternal hypertension, first trimester
- O16.2Unspecified maternal hypertension, second trimester
- O16.3Unspecified maternal hypertension, third trimester
- O16.4Unspecified maternal hypertension, complicating childbirth
- O16.5Unspecified maternal hypertension, complicating the puerperium
- O16.9Unspecified maternal hypertension, unspecified trimester
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.
Look up another code
Stop looking codes up by hand
Docdemic listens to the consultation, writes the note and suggests the diagnosis and procedure codes that fit it, each one checked against your country’s official code list.
Try Docdemic free