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2 Minute MedicineICD-10 Lookup

ICD-10-CM code · FY2027

I10 Essential (primary) hypertension

BillableValid for claims as a specific diagnosis code

About I10

Code
I10
Billable
Yes
Short description
Essential (primary) hypertension
Block
I10-I1A Hypertensive diseases
Chapter
9 Diseases of the circulatory system
Code set
FY2027, October 1, 2026 to September 30, 2027

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Coding notes for I10

Includes Conditions this code covers.

  • high blood pressure
  • hypertension (arterial) (benign) (essential) (malignant) (primary) (systemic)

Excludes1 Not coded here: never report these together with this code (use the code given instead).

  • hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16)

Excludes2 Not part of this condition, but a patient can have both: report both codes when both apply.

  • essential (primary) hypertension involving vessels of brain (I60-I69)
  • essential (primary) hypertension involving vessels of eye (H35.0-)
Block I10-I1A notes (apply to every code in it)

Excludes1 Not coded here: never report these together with this code (use the code given instead).

  • neonatal hypertension (P29.2)
  • primary pulmonary hypertension (I27.0)

Excludes2 Not part of this condition, but a patient can have both: report both codes when both apply.

  • hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16)

Use additional code Add a second code for the detail named here.

  • code to identify:
  • exposure to environmental tobacco smoke (Z77.22)
  • history of tobacco dependence (Z87.891)
  • occupational exposure to environmental tobacco smoke (Z57.31)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)
Chapter 9 notes (apply to every code in it)

Excludes2 Not part of this condition, but a patient can have both: report both codes when both apply.

  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • systemic connective tissue disorders (M30-M36)
  • transient cerebral ischemic attacks and related syndromes (G45.-)

Other categories in I10-I1A

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