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ICD-10 Coding for Lung Opacity(R91.8, J84.9, J81.0)

Complete ICD-10-CM coding and documentation guide for Lung Opacity. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

Pulmonary OpacityGround-Glass OpacityGGO

Related ICD-10 Code Ranges

Complete code families applicable to Lung Opacity

R91-R94Primary Range

Abnormal findings on diagnostic imaging of lung

This range includes codes for abnormal imaging findings, including lung opacities.

Other interstitial pulmonary diseases

Includes codes for interstitial lung diseases that may present with opacities.

Pulmonary edema

Covers conditions like pulmonary edema that can cause lung opacities.

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescriptionWhen to UseKey Documentation
R91.8Nonspecific abnormal finding of lung fieldUse when lung opacity is identified without a specific underlying cause.
  • Imaging showing nonspecific opacity
  • No confirmed etiology
J84.9Interstitial pulmonary disease, unspecifiedUse when interstitial lung disease is suspected but not specified.
  • HRCT confirmation
  • Exclusion of other causes
J81.0Acute pulmonary edemaUse when pulmonary edema is confirmed as the cause of opacity.
  • BNP >500 pg/mL
  • Clinical signs of fluid overload

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 lung opacity

Essential facts and insights about Lung Opacity

The ICD-10 code for nonspecific lung opacity is R91.8. Use specific codes if the cause is identified.

Primary ICD-10-CM Codes for lung opacity

Nonspecific abnormal finding of lung field
Billable Code

Decision Criteria

clinical Criteria

  • Opacity observed on imaging without specific diagnosis.

documentation Criteria

  • Lack of specific etiology in clinical notes.

Applicable To

  • Nonspecific lung opacity

Excludes

  • Specific conditions causing opacities (e.g., pneumonia, fibrosis)

Clinical Validation Requirements

  • Imaging showing nonspecific opacity
  • No confirmed etiology

Code-Specific Risks

  • May lead to undercoding if specific cause is not documented.

Coding Notes

  • Ensure documentation specifies lack of specific etiology before using R91.8.

Differential Codes

Alternative codes to consider when ruling out similar conditions to the primary diagnosis.

Interstitial pulmonary disease, unspecified

J84.9
Use when interstitial lung disease is confirmed as the cause of opacity.

Acute pulmonary edema

J81.0
Use when pulmonary edema is confirmed as the cause of opacity.

Pulmonary fibrosis, unspecified

J84.10
Use when fibrosis is confirmed as the cause of opacity.

Left ventricular failure

I50.1
Use when heart failure is the primary cause.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Lung Opacity to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code R91.8.

Impact

Clinical: May lead to inappropriate treatment., Regulatory: Non-compliance with coding standards., Financial: Potential for denied claims.

Mitigation Strategy

Thorough clinical evaluation, Detailed imaging reports

Impact

Reimbursement: May lead to incorrect DRG assignment., Compliance: Non-compliance with coding guidelines., Data Quality: Decreases accuracy of clinical data.

Mitigation Strategy

Use specific codes for identified conditions.

Impact

Risk of audits due to nonspecific coding.

Mitigation Strategy

Ensure documentation supports specific code selection.

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 Lung Opacity, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Lung Opacity

Use these documentation templates to ensure complete and accurate documentation for Lung Opacity. These templates include all required elements for proper coding and billing.

Pulmonary Consultation for Lung Opacity

Specialty: Pulmonology

Required Elements

  • Imaging findings
  • Clinical indicators
  • Differential diagnosis

Example Documentation

CT chest shows multifocal ground-glass opacities with subpleural sparing.

Examples: Poor vs. Good Documentation

Poor Documentation Example
Lung opacity seen on CXR.
Good Documentation Example
Bilateral peripheral ground-glass opacities on CT with positive SARS-CoV-2 PCR.
Explanation
The good example provides specific imaging details and correlates with clinical findings.

Need help with ICD-10 coding for Lung Opacity? Ask your questions below.

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