ICD-10 Code H05.022 – Osteomyelitis of left orbit (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H05.022 – Osteomyelitis of left orbit
What it is
H05.022 identifies osteomyelitis affecting the left orbit, meaning infection and inflammation involve the bony eye socket. Use it when documentation clearly states osteomyelitis of the left orbital bone.
Clinical signs
Clinical features vary; refer to documentation. Typical references describe orbital pain, swelling, tenderness, and sometimes redness or impaired eye movement when the orbit is involved.
When to use this code
Use this code when the provider documents osteomyelitis specifically in the left orbit. It may appear in imaging, operative, or specialist notes that identify the left orbital bone as the infected site.
Code it when laterality is confirmed and the diagnosis is not described more generally as facial, sinus, or unspecified orbital infection. Check documentation if the site is unclear.
Do not use for
Do not use H05.022 for orbital cellulitis, sinusitis, or osteomyelitis elsewhere in the skull. If the record does not specify the left orbit, use the appropriate unspecified or other code.
Coding tip
Match the code to explicit laterality and anatomic site; if the note says only “orbital osteomyelitis,” check documentation before assigning H05.022.