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I27.20
ICD-10-CM
Mild Pulmonary Hypertension

Understanding Mild Pulmonary Hypertension diagnosis, treatment, and prognosis. Find information on pulmonary arterial pressure, WHO Group 1 PAH, right heart catheterization, echocardiography, vasodilators, and disease management. Learn about clinical documentation requirements, ICD-10 codes (I27.20, I27.29), medical billing, and healthcare coding for Mild Pulmonary Hypertension. Explore resources for patients, clinicians, and medical coders seeking accurate and up-to-date information on this condition.

Also known as

Mild Pulmonary HTN
Mild PH

Related ICD-10 Code Ranges

Complete code families applicable to AAPC I27.20 Coding
I27.20

Pulmonary hypertension, unspecified

Mild pulmonary hypertension without further specification.

I27.21

Pulmonary arterial hypertension

Mild pulmonary hypertension due to issues in the lung arteries.

I27.29

Other pulmonary hypertension

Mild pulmonary hypertension due to other specified causes.

Code-Specific Guidance

Decision Tree for

Follow this step-by-step guide to choose the correct ICD-10 code.

Is the pulmonary hypertension mild?

Code Comparison

Related Codes Comparison

When to use each related code

Description
Mild Pulmonary Hypertension
Pulmonary Venous Hypertension
Pulmonary Arterial Hypertension

Documentation Best Practices

Documentation Checklist
  • Mean pulmonary arterial pressure 21-24 mmHg
  • Pulmonary artery wedge pressure <= 15 mmHg
  • Pulmonary vascular resistance >3 Wood units
  • RHC required for diagnosis confirmation
  • Document symptoms dyspnea, fatigue, chest pain

Coding and Audit Risks

Common Risks
  • Unspecified Etiology

    Coding I10 without specifying underlying cause (e.g., I27.2) leads to inaccurate risk adjustment and reimbursement.

  • Group 1 vs. Group Other

    Misclassifying PAH group (e.g., I27.0 vs. I27.2) impacts severity documentation, affecting quality metrics and resource allocation.

  • Conflicting Documentation

    Discrepancies between echo report (mild PH) and clinical findings may indicate undercoding or overcoding, impacting data integrity.

Mitigation Tips

Best Practices
  • Document PH etiology: ICD-10-CM I27.20, optimize CDI
  • RHC confirms mPH diagnosis, accurate PAP coding
  • Lifestyle changes: exercise, low-sodium diet, smoking cessation
  • Targeted therapy based on WHO Group I PH guidelines for compliant care
  • Regular follow-up, monitor hemodynamics for improved outcomes documentation

Clinical Decision Support

Checklist
  • 1. Mean pulmonary arterial pressure (mPAP) 20-24 mmHg at rest via right heart catheterization (RHC).
  • 2. Pulmonary artery wedge pressure (PAWP) or left ventricular end diastolic pressure (LVEDP) ≤15 mmHg via RHC.
  • 3. Pulmonary vascular resistance (PVR) >3 Wood units via RHC.
  • 4. Document symptoms (dyspnea, fatigue) and assess for other causes.
  • 5. Review medications and comorbidities influencing PH. Code accurately (ICD-10 I27.20).

Reimbursement and Quality Metrics

Impact Summary
  • Mild Pulmonary Hypertension reimbursement hinges on accurate ICD-10-CM coding (I27.20, I27.29) and supporting documentation for optimal payer specificity.
  • Coding quality directly impacts Case Mix Index (CMI) accuracy, influencing hospital reimbursement for Mild Pulmonary Hypertension.
  • Appropriate documentation and coding of Mild Pulmonary Hypertension comorbidities affect severity level and resource utilization, impacting MS-DRG assignment and reimbursement.
  • Timely and accurate claims submission for Mild Pulmonary Hypertension minimizes denials, improves revenue cycle, and optimizes hospital financial performance.

Streamline Your Medical Coding

Let S10.AI help you select the most accurate ICD-10 codes. Our AI-powered assistant ensures compliance and reduces coding errors.

Quick Tips

Practical Coding Tips
  • Code I27.20, not I27.29
  • Document mPAP 25-39 mmHg
  • Confirm with RHC findings
  • Exclude other PH groups
  • Query physician if unclear

Documentation Templates

Patient presents with symptoms suggestive of mild pulmonary hypertension (PH), including exertional dyspnea, fatigue, and occasional chest discomfort.  The patient denies syncope or edema.  Physical examination reveals clear lung fields with a normal S1 and a loud S2.  Right heart catheterization (RHC) confirms the diagnosis of mild PH, demonstrating a mean pulmonary artery pressure (mPAP) of 25 mmHg, pulmonary artery wedge pressure (PAWP) less than or equal to 15 mmHg, and pulmonary vascular resistance (PVR) elevated but less than 3 Wood units.  Echocardiogram findings support the diagnosis, showing mild right ventricular (RV) enlargement and normal left ventricular (LV) function.  The patient's World Health Organization (WHO) functional class is II.  Differential diagnoses considered included left heart disease, lung disease, and chronic thromboembolic pulmonary hypertension (CTEPH), which were ruled out based on diagnostic testing.  Initial treatment plan includes lifestyle modifications such as regular exercise and sodium restriction.  The patient was educated on the importance of medication adherence and follow-up appointments for ongoing monitoring of pulmonary artery pressure, cardiac function, and WHO functional class.  The patient will be reevaluated in three months to assess treatment response and adjust management as needed.  ICD-10 code I27.20, Pulmonary hypertension, unspecified, is assigned.