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Home/Diagnosis/ICD-10 Coding for Pulmonary Artery Hypertension

ICD-10 Coding for Pulmonary Artery Hypertension

I27.0
I27.21
I27.22

Complete ICD-10-CM coding and documentation guide for icd-10 coding for pulmonary artery hypertension includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
PAH
Pulmonary Arterial Hypertension
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Key Information: ICD-10 Coding for Pulmonary Artery Hypertension

Essential facts and insights about ICD-10 Coding for Pulmonary Artery Hypertension

Use ICD-10 code I27.0 for primary pulmonary hypertension, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Primary pulmonary hypertension

Billable Code
I27.0
Billable

Diagnostic Criteria

  • • Idiopathic or heritable PAH confirmed by RHC.

Applicable To

  • • Idiopathic PAH
  • • Heritable PAH

Important Notes

  • • Ensure RHC results are documented.

Secondary pulmonary arterial hypertension due to drugs

Billable Code
I27.21
Billable

Diagnostic Criteria

  • • Use when PAH is due to drug or toxin exposure.

Applicable To

  • • Drug-induced PAH

Important Notes

  • • Link to drug code (e.g., T45.1X5).

Pulmonary hypertension due to left heart disease

Billable Code
I27.22
Billable

Diagnostic Criteria

  • • Use when PH is due to left heart disease.

Applicable To

  • • PH due to heart failure

Important Notes

  • • Link to heart disease code (e.g., I50.9).

Pulmonary hypertension due to lung diseases

Billable Code
I27.23
Billable

Diagnostic Criteria

  • • Use when PH is due to lung disease.

Applicable To

  • • PH due to COPD
  • • PH due to interstitial lung disease

Important Notes

  • • Link to lung disease code (e.g., J44.9).

Chronic thromboembolic pulmonary hypertension

Billable Code
I27.24
Billable

Diagnostic Criteria

  • • Use when PH is due to chronic thromboembolic disease.

Applicable To

  • • CTEPH

Important Notes

  • • Link to chronic PE code (e.g., I26.99).
Frequently Asked Questions

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

The ICD-10 code for primary pulmonary artery hypertension is I27.0, while secondary forms are coded under I27.2 based on etiology.

How is pulmonary artery hypertension diagnosed?

Pulmonary artery hypertension is diagnosed using right heart catheterization, confirming mPAP >20 mmHg, PCWP ≤15 mmHg, and PVR ≥3 WU.

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