I16: Hypertensive crisis
Codes under I16 (Hypertensive crisis). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| I16.0 | Hypertensive urgency | ✓ |
| I16.0 | Hypertensive urgency | ✓ |
| I16.1 | Hypertensive emergency | ✓ |
| I16.1 | Hypertensive emergency | ✓ |
| I16.9 | Hypertensive crisis, unspecified | ✓ |
| I16.9 | Hypertensive crisis, unspecified | ✓ |
Frequently asked questions
What is ICD-10-CM code I16?
I16 is an ICD-10-CM category covering Hypertensive crisis. It contains 6 more specific diagnosis codes, 6 of which are billable.
Is I16 a billable code?
No — I16 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example I16.0 — Hypertensive urgency). 6 of the 6 codes under I16 are billable.
What codes fall under I16?
I16 includes I16.0, I16.0, I16.1, I16.1, I16.9, plus 1 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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