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ICD-10 diagnosis code

O11 Pre-eclampsia superimposed on chronic hypertension

This page in Swedish

O11 is the ICD-10 code for Pre-eclampsia superimposed on chronic 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

What O11 includes

Conditions and terms that are coded here.

  • Conditions in O10.- complicated by pre-eclampsia
  • Pre-eclampsia superimposed on:
    • hypertension NOS
    • pre-existing hypertension

O11 in national editions

Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.

SwedenICD-10-SE

O11Preeklampsi som tillstöter till kronisk hypertoni

  • O11.9Preeklampsi som tillstöter till kronisk hypertoni
NorwayICD-10-NO

O11Preeklampsi med kronisk hypertensjon i tillegg

DenmarkICD-10-DK

DO11Præeklampsi ved forud bestående kronisk hypertension

  • DO119Graviditet, fødsel eller barselsperiode med forud bestående komplicerende hypertension og proteinuri
FinlandICD-10-FI

O11Ennen raskautta alkanut korkea verenpaine ja raskauden yhteydessä ilmennyt tai lisääntynyt valkuaisvirtsaisuus

GermanyICD-10-GM

O11Chronische Hypertonie mit aufgepfropfter Präeklampsie

FranceICD-10-FR

O11Prééclampsie surajoutée à une hypertension chronique

NetherlandsICD-10-NL

O11pre-eclampsie gesuperponeerd op chronische hypertensie

United StatesICD-10-CM

Listed through more specific codes:

  • O11.1Pre-existing hypertension with pre-eclampsia, first trimester
  • O11.2Pre-existing hypertension with pre-eclampsia, second trimester
  • O11.3Pre-existing hypertension with pre-eclampsia, third trimester
  • O11.4Pre-existing hypertension with pre-eclampsia, complicating childbirth
  • O11.5Pre-existing hypertension with pre-eclampsia, complicating the puerperium
  • O11.9Pre-existing hypertension with pre-eclampsia, 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.

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