ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesC06.80

C06.80

Billable

Malignant neoplasm of overlapping sites of unspecified parts of mouth

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

Code Description

ICD-10 C06.80 is a billable code used to indicate a diagnosis of malignant neoplasm of overlapping sites of unspecified parts of mouth.

Key Diagnostic Point:

C06.80 refers to malignant neoplasms that occur in overlapping sites of the mouth, which may include areas such as the gums, tongue, and mucosal surfaces. These neoplasms can arise from various cell types, including squamous cells, and may present as lesions that are difficult to classify due to their location. The diagnosis often requires a thorough clinical examination, imaging studies, and histopathological evaluation to confirm malignancy. Symptoms may include pain, difficulty swallowing, and changes in oral function. Treatment typically involves a multidisciplinary approach, including surgical intervention, radiation therapy, and chemotherapy, depending on the stage and type of cancer. Dental considerations are crucial, as oral health can significantly impact treatment outcomes and quality of life for patients. Regular dental evaluations and interventions may be necessary to manage complications arising from both the malignancy and its treatment.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in presentation and overlapping sites complicates diagnosis.
  • Need for comprehensive documentation of clinical findings.
  • Potential for misclassification with benign lesions.
  • Multidisciplinary treatment approaches require coordination.

Audit Risk Factors

  • Inadequate documentation of clinical findings.
  • Failure to specify the exact site of the neoplasm.
  • Lack of supporting pathology reports.
  • Misalignment between diagnosis and treatment codes.

Specialty Focus

Medical Specialties

Oncology

Documentation Requirements

Detailed pathology reports, imaging studies, and treatment plans.

Common Clinical Scenarios

Diagnosis and management of oral cancers, staging assessments.

Billing Considerations

Ensure accurate staging and treatment documentation to support coding.

Dentistry

Documentation Requirements

Oral examinations, treatment notes, and referrals to specialists.

Common Clinical Scenarios

Management of oral health during cancer treatment, dental interventions.

Billing Considerations

Document any dental procedures performed in conjunction with cancer treatment.

Coding Guidelines

Inclusion Criteria

Use C06.80 When
  • Follow official ICD
  • CM coding guidelines, ensuring accurate documentation of the site and type of malignancy
  • Include staging information when available, and ensure that the code reflects the most specific diagnosis

Exclusion Criteria

Do NOT use C06.80 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

20680CPT Code

Biopsy of oral cavity lesion

Clinical Scenario

Used when a biopsy is performed to confirm malignancy.

Documentation Requirements

Pathology report and clinical notes detailing the lesion.

Specialty Considerations

Oncologists and dentists should coordinate documentation.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of oral malignancies, improving data accuracy and treatment tracking. C06.80 provides a clear designation for overlapping sites, which was less defined in ICD-9.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of oral malignancies, improving data accuracy and treatment tracking. C06.80 provides a clear designation for overlapping sites, which was less defined in ICD-9.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of oral malignancies, improving data accuracy and treatment tracking. C06.80 provides a clear designation for overlapping sites, which was less defined in ICD-9.

Resources

Clinical References

  • •
    American Academy of Oral and Maxillofacial Surgeons

Coding & Billing References

  • •
    American Academy of Oral and Maxillofacial Surgeons

Frequently Asked Questions

What is the significance of overlapping sites in oral malignancies?

Overlapping sites indicate that the malignancy affects multiple areas within the oral cavity, complicating treatment and necessitating precise documentation for effective management.