ICD-10 Diagnosis Code I15.9

Secondary hypertension, unspecified

Diagnosis Code I15.9

ICD-10: I15.9
Short Description: Secondary hypertension, unspecified
Long Description: Secondary hypertension, unspecified
This is the 2018 version of the ICD-10-CM diagnosis code I15.9

Valid for Submission
The code I15.9 is valid for submission for HIPAA-covered transactions.

Code Classification
  • Diseases of the circulatory system (I00–I99)
    • Hypertensive diseases (I10-I16)
      • Secondary hypertension (I15)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code I15.9 is grouped in the following Diagnostic Related Group(s) (MS-DRG V35.0)


Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Diastolic hypertension
  • Hypertensive crisis
  • Hypertensive emergency
  • Malignant hypertension
  • Malignant secondary hypertension
  • Paroxysmal hypertension
  • Perioperative hypertension
  • Pre-existing secondary hypertension complicating pregnancy, childbirth and puerperium
  • Secondary diastolic hypertension
  • Secondary hypertension

Information for Patients

High Blood Pressure

Also called: Benign essential hypertension, Essential hypertension, HBP, HTN, Hypertension

Blood pressure is the force of your blood pushing against the walls of your arteries. Each time your heart beats, it pumps blood into the arteries. Your blood pressure is highest when your heart beats, pumping the blood. This is called systolic pressure. When your heart is at rest, between beats, your blood pressure falls. This is called diastolic pressure.

Your blood pressure reading uses these two numbers. Usually the systolic number comes before or above the diastolic number. A reading of

  • 119/79 or lower is normal blood pressure
  • 140/90 or higher is high blood pressure
  • Between 120 and 139 for the top number, or between 80 and 89 for the bottom number is called prehypertension. Prehypertension means you may end up with high blood pressure, unless you take steps to prevent it.

High blood pressure usually has no symptoms, but it can cause serious problems such as stroke, heart failure, heart attack and kidney failure.

You can control high blood pressure through healthy lifestyle habits such as exercise and the DASH diet and taking medicines, if needed.

NIH: National Heart, Lung, and Blood Institute

  • ACE inhibitors (Medical Encyclopedia)
  • Blood pressure measurement (Medical Encyclopedia)
  • Blood pressure monitors for home (Medical Encyclopedia)
  • Controlling your high blood pressure (Medical Encyclopedia)
  • Drug-induced hypertension (Medical Encyclopedia)
  • High blood pressure (Medical Encyclopedia)
  • High blood pressure - children (Medical Encyclopedia)
  • High blood pressure and eye disease (Medical Encyclopedia)
  • High blood pressure medications (Medical Encyclopedia)
  • Hypertensive heart disease (Medical Encyclopedia)
  • Low-salt diet (Medical Encyclopedia)
  • Malignant hypertension (Medical Encyclopedia)
  • Renovascular hypertension (Medical Encyclopedia)

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