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ICD-10 Guide
ICD-10 CodesD02.21

D02.21

Billable

Carcinoma in situ of right bronchus and lung

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

Code Description

ICD-10 D02.21 is a billable code used to indicate a diagnosis of carcinoma in situ of right bronchus and lung.

Key Diagnostic Point:

Carcinoma in situ (CIS) of the right bronchus and lung refers to a localized form of lung cancer where abnormal cells are present in the lining of the bronchus and lung but have not invaded deeper tissues or spread to other parts of the body. This condition is characterized by the presence of atypical cells that have the potential to develop into invasive cancer if left untreated. The diagnosis is typically made through imaging studies such as CT scans and confirmed via bronchoscopy and biopsy. Patients with CIS may be asymptomatic or present with respiratory symptoms, including cough or hemoptysis. Surveillance protocols often involve regular imaging and pulmonary function tests to monitor for progression to invasive disease. The risk of progression to invasive carcinoma varies based on factors such as the size and histological characteristics of the lesion, as well as patient-specific factors like smoking history and overall health. Early detection and intervention are crucial in managing this condition effectively.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires precise documentation of the site and nature of the carcinoma.
  • Differentiation from other lung conditions can be challenging.
  • Need for comprehensive patient history to assess risk factors.
  • Potential for progression necessitates ongoing surveillance coding.

Audit Risk Factors

  • Inadequate documentation of the diagnosis and staging.
  • Failure to document surveillance protocols.
  • Misclassification of in situ versus invasive carcinoma.
  • Incomplete patient history regarding risk factors.

Specialty Focus

Medical Specialties

Pulmonology

Documentation Requirements

Detailed imaging reports, biopsy results, and treatment plans.

Common Clinical Scenarios

Diagnosis of CIS during routine screenings or evaluation of respiratory symptoms.

Billing Considerations

Ensure clear documentation of the site and characteristics of the carcinoma.

Oncology

Documentation Requirements

Comprehensive treatment plans, follow-up notes, and pathology reports.

Common Clinical Scenarios

Management of patients with CIS and planning for potential interventions.

Billing Considerations

Documenting the rationale for surveillance and treatment decisions.

Coding Guidelines

Inclusion Criteria

Use D02.21 When
  • According to ICD
  • 10 guidelines, D02
  • 21 should be used when the carcinoma is confirmed as in situ and specifically located in the right bronchus and lung
  • It is important to document the absence of invasion and any relevant patient history

Exclusion Criteria

Do NOT use D02.21 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

31625CPT Code

Bronchoscopy, rigid or flexible, including fluoroscopic guidance, when performed.

Clinical Scenario

Used for diagnosis and evaluation of CIS.

Documentation Requirements

Document indication for bronchoscopy and findings.

Specialty Considerations

Pulmonologists must ensure accurate reporting of findings.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of conditions like carcinoma in situ, improving the accuracy of patient records and treatment plans. D02.21 provides a clear distinction from invasive cancers, which is crucial for treatment and reimbursement.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of conditions like carcinoma in situ, improving the accuracy of patient records and treatment plans. D02.21 provides a clear distinction from invasive cancers, which is crucial for treatment and reimbursement.

Reimbursement & Billing Impact

reimbursement.

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 is the significance of coding D02.21 accurately?

Accurate coding of D02.21 is crucial for proper treatment planning, reimbursement, and ensuring that patients receive appropriate surveillance for potential progression to invasive cancer.