ICD-10 Coding for Metastatic Adenocarcinoma of Lung(C34.90, C34.11)
Complete ICD-10-CM coding and documentation guide for Metastatic Adenocarcinoma of Lung. Includes clinical validation requirements, documentation requirements, and coding pitfalls.
Also known as:
Related ICD-10 Code Ranges
Complete code families applicable to Metastatic Adenocarcinoma of Lung
C34.0-C34.9Primary Range
Malignant neoplasm of bronchus and lung
Primary range for coding lung adenocarcinoma based on specific location and laterality.
Secondary malignant neoplasm of lung
Used when the lung is a secondary site of metastasis from another primary cancer.
Secondary malignant neoplasm of brain and bone
Used for coding metastasis to brain and bone from primary lung adenocarcinoma.
Code Comparison: When to Use Each Code
Compare key differences between these codes to ensure accurate selection
| Code | Description | When to Use | Key Documentation |
|---|---|---|---|
| C34.90 | Malignant neoplasm of unspecified part of unspecified bronchus or lung | Use when the specific location within the lung is not documented. |
|
| C34.11 | Malignant neoplasm of upper lobe, right bronchus or lung | Use when adenocarcinoma is confirmed in the right upper 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 metastatic adenocarcinoma of lung
Essential facts and insights about Metastatic Adenocarcinoma of Lung
Primary ICD-10-CM Codes for metastatic adenocarcinoma of lung
Decision Criteria
clinical Criteria
- Biopsy and imaging confirm primary lung adenocarcinoma.
Applicable To
- Lung cancer NOS
Excludes
- Benign neoplasm of bronchus and lung (D14.3)
Clinical Validation Requirements
- Biopsy confirming adenocarcinoma
- Imaging showing lung mass
Code-Specific Risks
- Overuse due to unspecified location
Coding Notes
- Ensure documentation specifies primary vs. secondary site.
C34.11 - Malignant neoplasm of upper lobe, right bronchus or lung
Use when adenocarcinoma is confirmed in the right upper lobe.
Applicable To
- Adenocarcinoma of right upper lobe
Excludes
- Benign neoplasm of bronchus and lung (D14.3)
Clinical Validation Requirements
- Biopsy confirming adenocarcinoma
- Imaging showing mass in right upper lobe
Coding Notes
Ensure laterality is documented clearly.
Ancillary Codes
Additional codes that should be used in conjunction with the main diagnosis codes when applicable.
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 Metastatic Adenocarcinoma of Lung to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code C34.90.
Impact
Clinical: May affect treatment decisions., Regulatory: Non-compliance with coding standards., Financial: Potential for denied claims.
Mitigation Strategy
Ensure biopsy results are included in the medical record., Use checklists for documentation completeness.
Impact
Reimbursement: May lead to lower reimbursement due to lack of specificity., Compliance: Non-compliance with coding guidelines., Data Quality: Decreases accuracy of clinical data.
Mitigation Strategy
Always document and code the specific lobe and side of lung involvement.
Impact
Primary site not coded first when appropriate.
Mitigation Strategy
Regular audits and coder training.
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 Metastatic Adenocarcinoma of Lung, with expert answers to help guide accurate code selection and documentation.
Documentation Templates for Metastatic Adenocarcinoma of Lung
Use these documentation templates to ensure complete and accurate documentation for Metastatic Adenocarcinoma of Lung. These templates include all required elements for proper coding and billing.
Initial diagnosis of metastatic adenocarcinoma
Specialty: OncologyRequired Elements
- Primary site
- Metastatic sites
- Histology
- Imaging results
Example Documentation
Examples: Poor vs. Good Documentation
Poor Documentation Example
Good Documentation Example
Explanation
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