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J98.51

✓ Billable

Mediastinitis

Diseases of the respiratory system (J00-J99)

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📋 Code Instructions

  • • Code first: underlying condition, if applicable, such as postoperative mediastinitis (T81.-)

⚠️ Excludes2

inherited from J98.5

Rules from parent category J98.5: Diseases of mediastinum, not elsewhere classified

  • • abscess of mediastinum (J85.3)

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Code Information

CodeJ98.51
BillableYes
ParentJ98.5
CategoryDiseases of the respiratory system (J00-J99)
Excludes10 rule(s)
Excludes21 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)