What is the ICD-10 code for mild pulmonary hypertension?

The ICD-10 code for mild pulmonary hypertension without specified etiology is I27.20. For secondary causes, use I27.21-I27.29 based on the underlying condition.

How is mild pulmonary hypertension documented?

Document mild pulmonary hypertension with specific hemodynamic values (mPAP >20 mmHg) and any known etiology. Use right heart catheterization results for validation.

ICD-10 Coding for Mild Pulmonary Hypertension(I27.20, I27.0, I27.2)

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Learn about the ICD-10 coding for mild pulmonary hypertension, including documentation requirements and clinical validation criteria.

Also known as:

Mild Pulmonary HTNMild PH

Related ICD-10 Code Ranges

Complete code families applicable to Mild Pulmonary 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
I27.20	Unspecified pulmonary hypertension	Use when mild pulmonary hypertension is diagnosed without a specified underlying cause.	Right heart catheterization showing mPAP >20 mmHg PVR >2 WU
I27.21	Secondary pulmonary arterial hypertension	Use when PH is secondary to drug or toxin exposure.	Documentation of drug or toxin exposure Right heart catheterization showing mPAP >20 mmHg

Primary ICD-10-CM Codes

Pulmonary hypertension, unspecified

I27.20Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Pulmonary hypertension due to left heart diseaseI27.22

Use when PH is secondary to left heart disease, confirmed by elevated PAWP.

Pulmonary hypertension due to lung diseases and hypoxiaI27.23

Use when PH is secondary to lung diseases such as COPD or interstitial lung disease.

Documentation & Coding Risks

Avoid these common issues when documenting Mild Pulmonary Hypertension.

Failing to document etiology of PH.

Impact

Clinical: Inaccurate diagnosis and treatment planning., Regulatory: Potential audit issues., Financial: Reduced reimbursement due to unspecified coding.

Mitigation

Always query for etiology if not documented.

Using I27.0 for secondary pulmonary hypertension.

Impact

Reimbursement: Incorrect coding may lead to reduced reimbursement., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate data on PH prevalence and causes.

Mitigation

Use I27.2x codes for secondary PH with specified etiology.

Unspecified PH coding

Impact

Using I27.20 without supporting documentation.

Mitigation

Ensure hemodynamic values and etiology are documented.

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with I27.20.

Primary Code

I27.20

Pulmonary hypertension, unspecified

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ICD-10 codes7

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ICD-10 Coding for Mild Pulmonary Hypertension(I27.20, I27.0, I27.2)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for mild pulmonary hypertension?

How is mild pulmonary hypertension documented?

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