Specific code icon 2017 ICD-10-CM Diagnosis Code I10

Essential (primary) hypertension

    2016 2017 Billable/Specific Code Questionable As Admission Dx

  • I10 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • This is the American ICD-10-CM version of I10. Other international versions of ICD-10 I10 may differ.
  • Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

Clinical Information
  • A blood pressure of 140/90 or higher. High blood pressure usually has no symptoms. It can harm the arteries and cause an increase in the risk of stroke, heart attack, kidney failure, and blindness.
  • A disorder characterized by a pathological increase in blood pressure; a repeatedly elevation in the blood pressure exceeding 140 over 90 mm hg.
  • Blood pressure is the force of your blood pushing against the walls of your arteries. Each time your heart beats, it pumps out 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 the diastolic pressure. Your blood pressure reading uses these two numbers, the systolic and diastolic pressures. Usually they are written one above or before the other. A reading of
    • 120/80 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 prehypertension
    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 and taking medicines, if needed.
  • Hypertension occurring without preexisting renal disease or known organic cause.
  • Pathological increase in blood pressure; a repeatedly elevated blood pressure exceeding 140 over 90 mmhg.
  • Persistantly high arterial blood pressure.
  • Persistently high systemic arterial blood pressure. Based on multiple readings (blood pressure determination), hypertension is currently defined as when systolic pressure is consistently greater than 140 mm hg or when diastolic pressure is consistently 90 mm hg or more.
Approximate Synonyms
  • Benign Essential HTN
  • Benign essential hypertension
  • Benign Essential hypertension (HTN)
  • Benign HTN
  • Benign hypertension
  • Essential HTN
  • Essential htn, benign
  • Essential hypertension
  • Essential hypertension (high blood pressure)
  • Htn
  • HTN (Hypertension)
  • HTN, uncontrolled
  • Hypertension
  • Hypertension (high blood pressure)
  • Hypertension, uncontrolled
  • Hypertensive disorder
  • Hypertensive disorder, systemic arterial
  • Hypertensive emergency
  • Hypertensive urgency
  • Malignant HTN
  • Malignant hypertension
  • Nutrition treatment for HTN
  • Nutritional therapy for hypertension
  • Nutritional therapy for hypertension done
  • Nutritional therapy for hypertension done (situation)
  • Uncontrolled hypertension
Type 1 Excludes
  • hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16)
Type 2 Excludes
  • essential (primary) hypertension involving vessels of brain (I60-I69)
  • essential (primary) hypertension involving vessels of eye (H35.0-)
  • high blood pressure
  • hypertension (arterial) (benign) (essential) (malignant) (primary) (systemic)
ICD-10-CM Coding Rules
  • I10 is not usually sufficient justification for admission to an acute care hospital when used a principal diagnosis.
ICD-10-CM I10 is grouped within Diagnostic Related Group(s) (MS-DRG v34.0):
  • 304 Hypertension with mcc
  • 305 Hypertension without mcc

Convert ICD-10-CM I10 to ICD-9-CM

The following ICD-10-CM Index entries contain back-references to ICD-10-CM I10:
  • Hypertension, hypertensive (accelerated) (benign) (essential) (idiopathic) (malignant) (systemic) I10