What is the ICD-10 code for malignant hypertension?

The ICD-10 code for malignant hypertension without organ damage is I10. If there is acute organ damage, use I16.1 for hypertensive emergency.

How do you code a hypertensive emergency?

Code I16.1 is used for hypertensive emergencies with acute target organ damage, such as renal failure or encephalopathy.

ICD-10 Coding for Malignant Hypertension(I16.1, I16.0, N18.5)

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Comprehensive guide on coding malignant hypertension using ICD-10, including criteria for hypertensive emergencies and documentation requirements.

Also known as:

Hypertensive CrisisHypertensive Emergency

Related ICD-10 Code Ranges

Complete code families applicable to Malignant Hypertension

I00-I99Primary Range

Diseases of the circulatory system

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Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

Code	Description	When to Use	Key Documentation
I16.1	Hypertensive emergency	Use when documentation specifies acute target organ damage with BP ≥180/120 mmHg.	BP ≥180/120 mmHg Evidence of acute target organ damage (e.g. renal failure encephalopathy)
I10	Essential (primary) hypertension	Use for 'malignant hypertension' without acute target organ damage.	BP ≥140/90 mmHg Documentation of 'malignant hypertension' without organ damage

Primary ICD-10-CM Codes

Hypertensive emergency

I16.1Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Hypertensive urgencyI16.0

Hypertensive emergencyI16.1

Documentation & Coding Risks

Avoid these common issues when documenting Malignant Hypertension.

Failing to document organ damage for I16.1

Impact

Clinical: Misrepresentation of patient severity., Regulatory: Non-compliance with coding standards., Financial: Potential claim denials.

Mitigation

Ensure thorough documentation of clinical findings., Educate staff on coding requirements.

Coding I16.1 for 'malignant HTN' without organ damage.

Impact

Reimbursement: Incorrect DRG assignment leading to potential underpayment., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate clinical data representation.

Mitigation

Use I10 unless there is explicit documentation of organ damage.

Hypertensive Emergency Coding

Impact

Risk of incorrect coding without organ damage documentation.

Mitigation

Implement regular audits and staff training.

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with I16.1.

Primary Code

I16.1

Hypertensive emergency

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ICD-10 codes3

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ICD-10 Coding for Malignant Hypertension(I16.1, I16.0, N18.5)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for malignant hypertension?

How do you code a hypertensive emergency?

Related condition guides