J98.5 — Diseases of mediastinum, not elsewhere classified
Is J98.5 billable?
No — J98.5 is a non-billable header code. J98.5 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 2 billable codes beneath J98.5.
Billable codes under this header
J98.5 at a glance
| Code | J98.5 |
|---|---|
| Description | Diseases of mediastinum, not elsewhere classified |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes2 — not included here
The conditions below are not part of J98.5, but a patient may have both at the same time. When documentation supports it, J98.5 and the excluded code may both be reported.
- abscess of mediastinum (J85.3)
Excludes1 — never code together — inherited from J98
The conditions below can never be reported together with J98.5 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Use additional code — inherited from Chapter 10
Report an additional code alongside J98.5 to fully describe the condition. J98.5 is sequenced first.
Use additional code — inherited from J98
Report an additional code alongside J98.5 to fully describe the condition. J98.5 is sequenced first.
Excludes2 — not included here — inherited from Chapter 10
The conditions below are not part of J98.5, but a patient may have both at the same time. When documentation supports it, J98.5 and the excluded code may both be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- smoke inhalation (T59.81-)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Excludes2 — not included here — inherited from J98
The conditions below are not part of J98.5, but a patient may have both at the same time. When documentation supports it, J98.5 and the excluded code may both be reported.
What codes fall under J98.5? (2)
How long has J98.5 existed?
J98.5 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
- FY2018: J98.5 stopped being billable
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.