H75.0 — Mastoiditis in infectious and parasitic diseases classified elsewhere
Is H75.0 billable?
No — H75.0 is a non-billable header code. H75.0 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 4 billable codes beneath H75.0.
Billable codes under this header
- H75.00Mastoiditis in infectious and parasitic diseases classified elsewhere, unspecified ear
- H75.01Mastoiditis in infectious and parasitic diseases classified elsewhere, right ear
- H75.02Mastoiditis in infectious and parasitic diseases classified elsewhere, left ear
- H75.03Mastoiditis in infectious and parasitic diseases classified elsewhere, bilateral
H75.0 at a glance
| Code | H75.0 |
|---|---|
| Description | Mastoiditis in infectious and parasitic diseases classified elsewhere |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is H75.0 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to H75.0. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Mastoiditis › in › infectious disease NEC (coalescent) (hemorrhagic) (suppurative)
- Mastoiditis › in › parasitic disease NEC (coalescent) (hemorrhagic) (suppurative)
Excludes1 — never code together
The conditions below can never be reported together with H75.0 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Code first — inherited from H75
The underlying condition below must be sequenced before H75.0. H75.0 describes a manifestation and cannot be the principal or first-listed diagnosis.
- underlying disease
Excludes2 — not included here — inherited from Chapter 8
The conditions below are not part of H75.0, but a patient may have both at the same time. When documentation supports it, H75.0 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)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
What codes fall under H75.0? (4)
- H75.00Mastoiditis in infectious and parasitic diseases classified elsewhere, unspecified ear
- H75.01Mastoiditis in infectious and parasitic diseases classified elsewhere, right ear
- H75.02Mastoiditis in infectious and parasitic diseases classified elsewhere, left ear
- H75.03Mastoiditis in infectious and parasitic diseases classified elsewhere, bilateral
How long has H75.0 existed?
H75.0 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.