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ICD-10 Guide
ICD-10 CodesC24.8

C24.8

Billable

Malignant neoplasm of overlapping sites of biliary tract

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 C24.8 is a billable code used to indicate a diagnosis of malignant neoplasm of overlapping sites of biliary tract.

Key Diagnostic Point:

C24.8 refers to malignant neoplasms that arise from overlapping sites within the biliary tract, which includes the bile ducts and gallbladder. These tumors can be particularly challenging to diagnose and treat due to their complex anatomical locations and the potential for invasion into surrounding structures. Imaging studies such as ultrasound, CT scans, and MRIs are crucial for identifying the extent of the disease, as they help visualize the biliary anatomy and any obstructive processes. Surgical intervention may involve resection of the affected biliary structures, but the overlapping nature of these tumors can complicate surgical planning and execution. Additionally, the prognosis for patients with biliary tract cancers is often poor, necessitating a multidisciplinary approach for management, including oncologists, surgeons, and palliative care specialists. Accurate coding is essential for appropriate treatment planning and reimbursement, making it imperative for coders to understand the nuances of this diagnosis.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Overlapping sites complicate precise localization of the tumor.
  • Variability in imaging findings can lead to misinterpretation.
  • Surgical challenges due to anatomical complexity.
  • Need for multidisciplinary documentation and collaboration.

Audit Risk Factors

  • Inadequate documentation of tumor location.
  • Failure to capture all overlapping sites involved.
  • Misalignment between imaging findings and surgical reports.
  • Inconsistent terminology used in clinical documentation.

Specialty Focus

Medical Specialties

Oncology

Documentation Requirements

Detailed pathology reports, imaging studies, and treatment plans.

Common Clinical Scenarios

Diagnosis of biliary tract cancer, treatment planning, and follow-up care.

Billing Considerations

Ensure all imaging and pathology findings are clearly documented to support coding.

Surgery

Documentation Requirements

Operative reports detailing the extent of resection and any complications.

Common Clinical Scenarios

Surgical resection of biliary tumors, management of complications.

Billing Considerations

Document the specific sites involved and any overlapping structures affected.

Coding Guidelines

Inclusion Criteria

Use C24.8 When
  • According to ICD
  • 10 coding guidelines, C24
  • 8 should be used when the malignancy is confirmed and documented by a healthcare provider
  • Coders should ensure that the documentation specifies the overlapping sites involved and any relevant imaging findings

Exclusion Criteria

Do NOT use C24.8 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

47562CPT Code

Laparoscopic cholecystectomy

Clinical Scenario

Used when a patient with biliary tract cancer undergoes gallbladder removal.

Documentation Requirements

Operative report detailing the procedure and findings.

Specialty Considerations

Surgeons should document any findings related to malignancy.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of biliary tract cancers, improving the accuracy of data collection and reimbursement processes. C24.8 provides a distinct code for overlapping sites, which was less clearly defined in ICD-9.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of biliary tract cancers, improving the accuracy of data collection and reimbursement processes. C24.8 provides a distinct code for overlapping sites, which was less clearly defined in ICD-9.

Reimbursement & Billing Impact

reimbursement processes. C24.8 provides a distinct code for overlapping sites, which was less clearly defined in ICD-9.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

What imaging studies are most useful for diagnosing biliary tract cancers?

Ultrasound, CT scans, and MRIs are essential for visualizing the biliary anatomy and identifying any masses or obstructions.