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 CodesD38.3

D38.3

Billable

Neoplasm of uncertain behavior of mediastinum

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

Code Description

ICD-10 D38.3 is a billable code used to indicate a diagnosis of neoplasm of uncertain behavior of mediastinum.

Key Diagnostic Point:

A neoplasm of uncertain behavior of the mediastinum refers to a tumor located in the mediastinal space that has not been definitively classified as benign or malignant. The mediastinum is the area in the thoracic cavity between the lungs, containing vital structures such as the heart, trachea, esophagus, and major blood vessels. Neoplasms in this region can arise from various tissues, including lymphatic, connective, and epithelial tissues. Due to their uncertain behavior, these neoplasms require careful monitoring and evaluation to determine their potential for progression or malignancy. Surveillance typically involves imaging studies, such as CT or MRI scans, and may necessitate biopsy for histological examination. The clinical management of these neoplasms can vary significantly based on their characteristics, size, and symptoms. Patients may present with respiratory distress, chest pain, or other systemic symptoms, necessitating a multidisciplinary approach for diagnosis and treatment. The uncertainty surrounding these neoplasms underscores the importance of ongoing surveillance and assessment to guide clinical decision-making.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in tumor behavior and classification
  • Need for comprehensive documentation of imaging and biopsy results
  • Potential for misclassification with other neoplasms
  • Requirement for ongoing surveillance and follow-up

Audit Risk Factors

  • Inadequate documentation of tumor characteristics
  • Failure to document follow-up imaging or biopsies
  • Misinterpretation of uncertain behavior as benign or malignant
  • Lack of multidisciplinary notes in the medical record

Specialty Focus

Medical Specialties

Oncology

Documentation Requirements

Detailed pathology reports, imaging studies, and treatment plans must be documented.

Common Clinical Scenarios

Patients presenting with mediastinal masses requiring biopsy and treatment planning.

Billing Considerations

Oncologists must ensure that all findings are clearly documented to support the diagnosis of uncertain behavior.

Pulmonology

Documentation Requirements

Pulmonary function tests, imaging results, and clinical assessments are essential.

Common Clinical Scenarios

Patients with respiratory symptoms and mediastinal masses needing evaluation.

Billing Considerations

Pulmonologists should document the impact of the neoplasm on respiratory function.

Coding Guidelines

Inclusion Criteria

Use D38.3 When
  • According to ICD
  • 10 coding guidelines, D38
  • 3 should be used when the neoplasm's behavior is uncertain and cannot be classified as benign or malignant
  • Coders must ensure that all relevant clinical information is documented to support the use of this code

Exclusion Criteria

Do NOT use D38.3 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

32405CPT Code

Thoracotomy, with excision of mediastinal mass

Clinical Scenario

Used when surgical intervention is required for a mediastinal neoplasm.

Documentation Requirements

Operative reports detailing the procedure and findings.

Specialty Considerations

Surgeons must document the rationale for excision and any findings during surgery.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of neoplasms, including those of uncertain behavior. This specificity aids in better tracking and management of these conditions, improving patient care and outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of neoplasms, including those of uncertain behavior. This specificity aids in better tracking and management of these conditions, improving patient care and outcomes.

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 D38.3?

Coding D38.3 is significant as it indicates a neoplasm of uncertain behavior, which requires careful monitoring and may have implications for treatment and prognosis. Accurate coding ensures appropriate management and follow-up.