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

ICD-10 Coding for Severe Pulmonary Hypertension

I27.0
I27.21

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

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

Essential facts and insights about ICD-10 Coding for Severe Pulmonary 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

  • • Mean pulmonary artery pressure (mPAP) ≥25 mmHg at rest via right heart catheterization
  • • Pulmonary capillary wedge pressure ≤15 mmHg
  • • Exclusion of secondary causes

Applicable To

  • • Idiopathic pulmonary arterial hypertension

Important Notes

  • • Ensure right heart catheterization results are documented to support the use of this code.

Secondary pulmonary arterial hypertension

Billable Code
I27.21
Billable

Diagnostic Criteria

  • • Documentation of secondary cause such as connective tissue disease or congenital heart disease

Applicable To

  • • Pulmonary hypertension due to connective tissue disease

Important Notes

  • • Ensure the underlying condition is documented and coded first.
Ancillary Codes

Additional codes that may be used with this diagnosis

J84.9

Interstitial pulmonary disease, unspecified

Use when interstitial lung disease is present alongside primary pulmonary hypertension.

M34.0

Progressive systemic sclerosis

Use when scleroderma is the underlying cause of pulmonary hypertension.

Frequently Asked Questions

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

The ICD-10 code for primary severe pulmonary hypertension is I27.0, while secondary pulmonary hypertension is coded as I27.21.

How is severe pulmonary hypertension diagnosed?

Severe pulmonary hypertension is diagnosed using right heart catheterization, confirming a mean pulmonary artery pressure of ≥25 mmHg.

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