I16.1

ICD-10Billable

Hypertensive emergency

Official ICD-10-CM descriptor (FY2026)

Hypertensive emergency

I16.1 is valid for submission on a claim — CMS flags it as a billable, specific code.

Use additional code

Report an additional code to identify the associated condition.

  • code, if applicable, to identify specific organ dysfunction, such as:
  • acute kidney injury (N17.-)
  • acute myocardial infarction (I21.-)
  • acute pulmonary edema (left and/or right ventricular failure) (J81.0, I50.-)
  • aortic dissection (I71.0-)
  • cerebral hemorrhage (I60.-. I61.-, I62.-)
  • cerebral infarction (I63.-)
  • eclampsia (O15.-)
  • hypertensive encephalopathy (I67.4)
  • seizure (R56.9)

Related codes in I16

Where this code sits

Parent code
I16

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.

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