Hypertension, malignant

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ICD10 Diagnosis
Dx: Hypertension, malignant
ICD10 code: I10.1
Pre-ICD10 counterpart: Malignant Hypertension
Charlson/ALERT Scale: none
APACHE Como Component: none
APACHE Acute Component: 2019-0: Hypertension, 2019-0: CV NOS, 2019-0: Cardiovascular NOS
Start Date:
Stop Date:
External ICD10 Documentation

This diagnosis is a part of ICD10 collection.

  • SMW
    • 2019-01-01
    • 2999-12-31
    • I10.1
  • Cargo


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Additional Info

  • Malignant hypertension is extremely high blood pressure that usually develops rapidly and to qualify MUST be associated with some type of acute organ damage from the high BP
    • The acute organ damage can be of any degree (and includes hypertensive encephalopathy which can be fully reversible once the BP comes down) and any organ -- but must be due to the high BP itself.
  • What is considered "extremely high" is, in textbooks SBP>180 or DBP>110, but are certainly people with BP this high that is "chronic" that don't have the organ damage that's required for this code. Malignant hypertension should be treated as a medical emergency.
    • BUT if somebody has a BP say 178/108 that's acute and has the organ damage, it should STILL be called malignant hypertension despite not meeting that arbitrary numerical threshold.
  • Due to all of this, the need for an acutely higher than normal BP AND end-organ damage due to it --- there may be an aspect of this diagnosis that has some subjectivity to it, i.e. "Is the BP high enough?" or "Is the organ dysfunction seen due to that acutely high BP?"
  • Hypertensive urgency
  • Hypertensive emergency
  • Hypertensive crisis

Alternate ICD10s to consider coding instead or in addition

Hypertension codes:
Pulmonary hypertension codes:

Candidate Combined ICD10 codes

Related CCI Codes

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