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v1.0.0
ICD-10 Guide
DiagnosesMediastinal Mass

Mediastinal Mass

ICD-10 Coding for Mediastinal Mass(C38.3, D15.2, R91.8)

PRIMARY SPECIALTYOncology
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Mediastinal Mass?
Essential facts and insights about Mediastinal Mass

Key Clinical Considerations:

  • Chest pain or discomfort
  • Shortness of breath
  • Coughing or wheezing
  • Key diagnostic tests: CT scan, MRI, or PET scan
  • Physical exam findings: mediastinal dullness, tracheal deviation

Clinical Information

Clinical Criteria & Documentation Requirements

  • Required documentation elements: patient history, imaging results, biopsy reports
  • Specific coding terminology: mediastinal mass, neoplasm, tumor
  • Documentation examples: 'CT scan shows a 5 cm mass in the anterior mediastinum.'

Coding Guidelines

Usage Guidelines & Examples

  • Usage guidelines: follow specific coding guidelines for neoplasms.
  • Common errors: misclassifying benign masses as malignant.

Code Exclusions

Important Exclusions

  • Excluded conditions: benign tumors, infections
  • Alternative codes: codes for specific types of tumors in the mediastinum

Related ICD-10 Codes

Primary Codes
C76.1
Malignant neoplasm of mediastinum
D49.6
Neoplasm of unspecified behavior of mediastinum
Ancillary Codes
I87.1
Differential Codes
D15.2
C37
C38.3

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Oncology

Specialty Applications

  • Adult and pediatric populations
  • Oncology clinics, hospitals, and outpatient settings

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

  • Comprehensive clinical documentation
  • Accurate code selection based on clinical criteria
  • Proper exclusion considerations
  • Specialty-specific coding guidelines

Documentation

Documentation Templates

Billing Information

Billing Considerations

  • Ensure proper documentation for billing
  • Verify code specificity requirements
  • Check for any additional codes needed
  • Review payer-specific guidelines

Common Issues

  • Insufficient clinical documentation
  • Incorrect code selection
  • Missing supporting diagnoses
  • Timing and frequency documentation

Frequently Asked Questions

Documentation requirements?

Include imaging studies, clinical findings, and treatment plans.

Billing considerations?

Ensure accurate coding to reflect the complexity of the case and associated treatments.