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v1.0.0
ICD-10 Guide
DiagnosesPneumomediastinum

Pneumomediastinum

ICD-10 Coding for Pneumomediastinum(J98.2, P25.2, T81.82)

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

Diagnosis Overview

What is Pneumomediastinum?
Essential facts and insights about Pneumomediastinum

Key Clinical Considerations:

  • Chest pain or discomfort
  • Dyspnea (shortness of breath)
  • Subcutaneous emphysema
  • Key diagnostic tests: Chest X-ray, CT scan of the chest
  • Physical exam findings: Hyperresonance on percussion, decreased breath sounds

Clinical Information

Clinical Criteria & Documentation Requirements

  • Required documentation elements: Patient history, physical exam findings, imaging results
  • Specific coding terminology: Pneumomediastinum, mediastinal air
  • Documentation examples: 'Patient presents with chest pain and dyspnea; CT scan reveals pneumomediastinum.'

Coding Guidelines

Usage Guidelines & Examples

  • Usage guidelines: Use J98.11 for pneumomediastinum; avoid using codes for other respiratory conditions unless applicable.
  • Common errors: Misclassifying pneumothorax as pneumomediastinum.

Code Exclusions

Important Exclusions

  • Excluded conditions: Pneumothorax, mediastinal tumors
  • Alternative codes: Consider J98.12 for other specified respiratory conditions.

Related ICD-10 Codes

Primary Codes
J98.11
Pneumomediastinum
Ancillary Codes
J45.901
Differential Codes
T79.7
P23.9
J98.2

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Pulmonology

Specialty Applications

  • Patient populations: Adults and children with respiratory distress, trauma patients
  • Clinical settings: Emergency departments, pulmonology clinics, inpatient care

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?

Document all symptoms, imaging results, and clinical findings.

Billing considerations?

Ensure accurate coding to reflect the severity and complexity of the condition.