JA20

ICD-11 MMS 2026-01

Pre-existing hypertension complicating pregnancy, childbirth or the puerperium

Description

A condition affecting pregnant females, caused by previously diagnosed maternal hypertension. This condition is characterised by any complication during pregnancy, childbirth, and the puerperium as a result of a blood pressure reading above 140/90 mmHg prior to the 20th week of pregnancy, or persisting longer than 12 weeks postpartum. Confirmation is by sphygmomanometer.

Coding note from above levels

The codes included in this chapter are to be used for conditions related to or aggravated by the pregnancy, childbirth or by the puerperium (maternal causes or obstetric causes)

Excludes

  • JA21 – Pre-eclampsia superimposed on chronic hypertension

Exclusions from above levels

  • 1C14 – Obstetrical tetanus
  • 22 – Injury, poisoning or certain other consequences of external causes
  • 23 – External causes (for mortality)
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  • 5A61.0 – Postpartum necrosis of pituitary gland
  • http://id.who.int/icd/entity/882114523 – Mental or behavioural disorders associated with pregnancy, childbirth or the puerperium

Child codes

  • JA20.0 – Pre-existing essential hypertension complicating pregnancy, childbirth or the puerperium
  • JA20.1 – Pre-existing hypertensive heart disease complicating pregnancy, childbirth or the puerperium
  • JA20.2 – Pre-existing hypertensive renal disease complicating pregnancy, childbirth or the puerperium
  • JA20.3 – Pre-existing hypertensive heart and renal disease complicating pregnancy, childbirth or the puerperium
  • JA20.4 – Pre-existing secondary hypertension complicating pregnancy, childbirth or the puerperium
  • JA20.Y – Other specified pre-existing hypertension complicating pregnancy, childbirth or the puerperium
  • JA20.Z – Pre-existing hypertension complicating pregnancy, childbirth or the puerperium, unspecified

Sibling codes

  • JA21 – Pre-eclampsia superimposed on chronic hypertension
  • JA22 – Gestational oedema or proteinuria without hypertension
  • JA23 – Gestational hypertension
  • JA24 – Pre-eclampsia
  • JA25 – Eclampsia
  • JA2Z – Oedema, proteinuria, or hypertensive disorders in pregnancy, childbirth, or the puerperium, unspecified

Foundation entity

Pre-existing hypertension complicating pregnancy, childbirth or the puerperium – http://id.who.int/icd/entity/183230446

Part of: 18: Pregnancy, childbirth or the puerperium