Current
I10 — Essential (primary) hypertension
Part of Chapter 9: Diseases of the circulatory system , block Hypertensive diseases (I10-I1A) .
Official Notes
Includes
high blood pressure
Includes
hypertension (arterial) (benign) (essential) (malignant) (primary) (systemic)
Excludes1
hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16)
Excludes2
essential (primary) hypertension involving vessels of brain (I60-I69)
Excludes2
essential (primary) hypertension involving vessels of eye ( H35.0- )
Child Codes
I10 has no child codes in the FY 2027 release -- it is used on its own.
Referenced By
Official notes on these codes cite I10.
FY 2027 effective October 1, 2026 · CDC NCHS and CMS