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J98.5

Non-billable

Diseases of mediastinum, not elsewhere classified

J98.5 is the ICD-10-CM code for Diseases of mediastinum, not elsewhere classified. It is a non-billable category code — use a more specific child code such as J98.51 for billing.

Status
Header (non-billable)
Chapter
J00-J99
Parent
J98
Subcodes
2
Edition
FY2026

J00-J99 Diseases of the respiratory system

Excludes2 — not included here

  • •abscess of mediastinum (J85.3)

Frequently asked questions

What is ICD-10 code J98.5?
J98.5 is the ICD-10-CM code for "Diseases of mediastinum, not elsewhere classified". It falls under J00-J99 Diseases of the respiratory system.
Is J98.5 a billable code?
No — J98.5 is a non-billable header code. Use a more specific child code (such as J98.51) for billing.
What are the subcodes of J98.5?
J98.5 has 2 more specific child codes, including J98.51, J98.59.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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