J98.51 ICD-10-CM Code: Mediastinitis
J98.51 is the billable ICD-10-CM code for “Mediastinitis” in the FY 2027 U.S. code set, effective Oct 1, 2026.
Official description
J98.51Mediastinitis
ICD-10-CM diagnosis code · United States clinical modification
Where J98.51 sits
- 1
Chapter 10
Diseases of the respiratory system (J00-J99)
- 2
Section
Other diseases of the respiratory system (J96-J99)
- 3
Category J98
Other respiratory disorders
- 4
Subcategory J98.5
Diseases of mediastinum, not elsewhere classified
- 5
Code J98.51
Mediastinitis
Notes for this code
Inclusion terms
No inclusion terms are listed for J98.51.
Code first
- underlying condition, if applicable, such as postoperative mediastinitis (T81.-)
Use additional code
No “use additional code” instruction is listed for J98.51.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for J98.51.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for J98.51.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code J98.51 mean?
J98.51 is the FY 2027 U.S. ICD-10-CM code for “Mediastinitis.”
Is J98.51 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, J98.51 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is J98.51 located in ICD-10-CM?
J98.51 is listed in Chapter 10, Diseases of the respiratory system (J00-J99), within Other diseases of the respiratory system (J96-J99) (J96–J99), under category J98, Other respiratory disorders and subcategory J98.5, Diseases of mediastinum, not elsewhere classified.
What coding notes are listed for J98.51?
No inclusion terms are listed for J98.51 in this reference record. Code-first instructions: underlying condition, if applicable, such as postoperative mediastinitis (T81.-). No Excludes1 note is listed. No Excludes2 note is listed.