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ICD-10 Coding for Cavitary Lung Lesion(R91.8, C34.11)

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

Also known as:

Pulmonary CavityLung Cavity

Related ICD-10 Code Ranges

Complete code families applicable to Cavitary Lung Lesion

R91-R94Primary Range

Abnormal findings on diagnostic imaging and in function studies, without diagnosis

Used for nonspecific findings in lung imaging when etiology is not confirmed.

Malignant neoplasm of bronchus and lung

Applicable when cavitary lesion is confirmed as malignant.

Abscess of lung and mediastinum

Used when cavitary lesion is due to a lung abscess.

Respiratory tuberculosis

Used when cavitary lesion is due to tuberculosis.

Coccidioidomycosis

Used when cavitary lesion is due to fungal infection like Coccidioidomycosis.

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescriptionWhen to UseKey Documentation
R91.8Other nonspecific abnormal finding of lung fieldUse when cavitary lesion is identified but etiology is not confirmed.
  • Imaging report showing cavitary lesion
  • No confirmed etiology from biopsy or culture
C34.11Malignant neoplasm of upper lobe, right bronchus or lungUse when cavitary lesion is confirmed as malignant by biopsy.
  • Pathology report confirming malignancy
  • Imaging showing cavitary lesion in specified lung lobe

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 cavitary lung lesion

Essential facts and insights about Cavitary Lung Lesion

The ICD-10 code for a cavitary lung lesion of unknown etiology is R91.8. For confirmed malignancies, use C34.xx.

Primary ICD-10-CM Codes for cavitary lung lesion

Other nonspecific abnormal finding of lung field
Billable Code

Decision Criteria

clinical Criteria

  • Imaging shows cavitary lesion without confirmed cause.

coding Criteria

  • No specific infectious or malignant cause identified.

Applicable To

  • Cavitary lung lesion of unknown etiology

Excludes

  • Malignant neoplasm of lung (C34.-)
  • Lung abscess (J85.2)

Clinical Validation Requirements

  • Imaging report showing cavitary lesion
  • No confirmed etiology from biopsy or culture

Code-Specific Risks

  • Risk of undercoding if specific etiology is known.

Coding Notes

  • Ensure documentation specifies lack of confirmed etiology to justify use of R91.8.

Ancillary Codes

Additional codes that should be used in conjunction with the main diagnosis codes when applicable.

Personal history of nicotine dependence

Z87.891
Use to indicate history of smoking when relevant.

Differential Codes

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

Malignant neoplasm of upper lobe, right bronchus or lung

C34.11
Use when biopsy confirms malignancy in cavitary lesion.

Lung abscess

J85.2
Use when cavitary lesion is confirmed as abscess with culture results.

Other nonspecific abnormal finding of lung field

R91.8
Use R91.8 when malignancy is not confirmed.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Cavitary Lung Lesion 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 misdiagnosis or inappropriate treatment., Regulatory: Non-compliance with documentation standards., Financial: Potential for denied claims due to insufficient documentation.

Mitigation Strategy

Ensure all imaging reports include detailed descriptions of lesion characteristics.

Impact

Reimbursement: May result in lower reimbursement if specific codes are not used., Compliance: Risk of non-compliance with coding guidelines., Data Quality: Impacts accuracy of clinical data.

Mitigation Strategy

Use specific codes like C34.xx for malignancy or J85.2 for abscess when etiology is confirmed.

Impact

High risk of audit if R91.8 is used without proper justification.

Mitigation Strategy

Ensure documentation supports the use of nonspecific codes and consider more specific codes when possible.

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

Documentation Templates for Cavitary Lung Lesion

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

Pulmonology Progress Note

Specialty: Pulmonology

Required Elements

  • Imaging findings
  • Biopsy results
  • Clinical impression
  • Plan

Example Documentation

IMAGING: 2.7 cm cavitary lesion RUL with maximum wall thickness 9mm, internal septations, no air-fluid level, SUVmax 6.8 on PET/CT. MICRO: Sputum AFB x3 negative. BIOPSY: Squamous cell carcinoma confirmed via CT-guided biopsy. IMPRESSION: Primary lung malignancy (C34.11) with cavitary presentation. PLAN: Oncology consult for staging.

Examples: Poor vs. Good Documentation

Poor Documentation Example
Cavitary lesion seen on CT.
Good Documentation Example
4.1 cm thick-walled cavitary lesion (max wall thickness 12mm) in LLL with adjacent tree-in-bud opacities and positive AFB smear.
Explanation
The good example provides specific details about the lesion's size, wall characteristics, and associated findings, which are necessary for accurate coding and clinical decision-making.

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

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