ICD-9-CM Codes ICD-9-PCS Codes

401.9 - Unspecified essential hypertension

GEM Conversion to ICD-10 CM

I10

Fs: 10000 – Essential (primary) hypertension

I16.9

Fs: 10000 – Hypertensive crisis, unspecified

Sibling Codes

401.0

Malignant essential hypertension

401.1

Benign essential hypertension

401.9

Unspecified essential hypertension