BA04

ICD-11 MMS 2026-01

Secondary hypertension

Description

Defined through the measurement of the blood pressure using cuff method with a sitting systolic blood pressure above 140 mmHg or a sitting diastolic blood pressure above 90 mmHg in three consequent measurements with an identifiable cause.

Excludes

  • 9B78.1 – involving vessels of eye
  • http://id.who.int/icd/entity/843843448 – involving vessels of brain

Exclusions from above levels

  • BB01 – Pulmonary hypertension
  • http://id.who.int/icd/entity/1042184245 – Oedema, proteinuria, or hypertensive disorders in pregnancy, childbirth, or the puerperium
  • http://id.who.int/icd/entity/1964269418 – involving coronary vessels
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  • MC80.00 – White coat hypertension
  • 01 – Certain infectious or parasitic diseases
  • 05 – Endocrine, nutritional or metabolic diseases
  • 18 – Complications of pregnancy, childbirth and the puerperium
  • 19 – Certain conditions originating in the perinatal period
  • 20 – Congenital malformations, deformations and chromosomal abnormalities
  • 22 – Injury, poisoning or certain other consequences of external causes

Child codes

  • BA04.0 – Combined diastolic and systolic secondary hypertension
  • BA04.1 – Isolated diastolic secondary hypertension
  • BA04.2 – Isolated systolic secondary hypertension
  • BA04.Y – Other specified secondary hypertension
  • BA04.Z – Secondary hypertension, unspecified

Foundation children elsewhere

  • JA20.4 – Pre-existing secondary hypertension complicating pregnancy, childbirth or the puerperium

Sibling codes

  • BA00 – Essential hypertension
  • BA01 – Hypertensive heart disease
  • BA02 – Hypertensive renal disease
  • BA03 – Hypertensive crisis

Foundation entity

Secondary hypertension – http://id.who.int/icd/entity/1331849426

Allowed postcoordination axes

Part of: 11: Diseases of the circulatory system