ICD-10 Coding for Mild Pulmonary Hypertension(I27.20, I27.21)
Complete ICD-10-CM coding and documentation guide for Mild Pulmonary Hypertension. Includes clinical validation requirements, documentation requirements, and coding pitfalls.
Also known as:
Related ICD-10 Code Ranges
Complete code families applicable to Mild Pulmonary Hypertension
I27.0-I27.29Primary Range
Pulmonary heart disease and diseases of pulmonary circulation
This range includes codes for primary and secondary pulmonary hypertension, including mild cases.
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. |
|
| I27.21 | Secondary pulmonary arterial hypertension | Use when PH is secondary to drug or toxin exposure. |
|
Clinical Decision Support
Always review the patient's clinical documentation thoroughly. When in doubt, choose the more specific code and ensure documentation supports it.
Key Information: ICD-10 code for mild pulmonary hypertension
Essential facts and insights about Mild Pulmonary Hypertension
Primary ICD-10-CM Codes for mild pulmonary hypertension
Decision Criteria
clinical Criteria
- Diagnosis of mild pulmonary hypertension with mPAP >20 mmHg
documentation Criteria
- Lack of specified etiology in documentation
Applicable To
- Mild pulmonary hypertension without specified etiology
Clinical Validation Requirements
- Right heart catheterization showing mPAP >20 mmHg
- PVR >2 WU
Code-Specific Risks
- Risk of using unspecified code without proper documentation of hemodynamics.
Coding Notes
- Ensure documentation includes hemodynamic values and any suspected etiology.
I27.21 - Secondary pulmonary arterial hypertension
Use when PH is secondary to drug or toxin exposure.
Applicable To
- Drug/toxin-induced pulmonary hypertension
Clinical Validation Requirements
- Documentation of drug or toxin exposure
- Right heart catheterization showing mPAP >20 mmHg
Coding Notes
Sequence drug/toxin code after I27.21.
Differential Codes
Alternative codes to consider when ruling out similar conditions to the primary diagnosis.
Documentation & Coding Risks
Avoid these common documentation and coding issues when documenting Mild Pulmonary Hypertension to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code I27.20.
Impact
Clinical: Inaccurate diagnosis and treatment planning., Regulatory: Potential audit issues., Financial: Reduced reimbursement due to unspecified coding.
Mitigation Strategy
Always query for etiology if not documented.
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 Strategy
Use I27.2x codes for secondary PH with specified etiology.
Impact
Using I27.20 without supporting documentation.
Mitigation Strategy
Ensure hemodynamic values and etiology are documented.
Documentation errors, coding pitfalls, and audit risks are interconnected aspects of medical coding and billing. Addressing all three areas helps ensure accurate coding, optimal reimbursement, and regulatory compliance.
Frequently Asked Questions
Common questions about ICD-10 coding for Mild Pulmonary Hypertension, with expert answers to help guide accurate code selection and documentation.
Documentation Templates for Mild Pulmonary Hypertension
Use these documentation templates to ensure complete and accurate documentation for Mild Pulmonary Hypertension. These templates include all required elements for proper coding and billing.
Mild PH due to interstitial lung disease
Specialty: PulmonologyRequired Elements
- WHO Group classification
- Hemodynamic values
- Underlying lung disease
Example Documentation
Examples: Poor vs. Good Documentation
Poor Documentation Example
Good Documentation Example
Explanation
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