ICD-10 Code H05.019 – Cellulitis of unspecified orbit (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H05.019 – Cellulitis of unspecified orbit
What it is
H05.019 identifies cellulitis affecting the orbit when the documentation does not specify which side. It refers to an acute infection and inflammation of the tissues around the eye.
Clinical signs
Typical findings include painful swelling, redness, and tenderness around the eye. Clinical features vary; refer to documentation for orbital involvement, eye movement pain, or visual changes.
When to use this code
Use this code when the provider documents orbital cellulitis but does not identify the left or right orbit. It is appropriate for confirmed infection of the orbital tissues, not a vague eye infection. If the note only says “cellulitis” without orbital location, check documentation.
Do not use for
Do not use it for eyelid cellulitis, periorbital cellulitis, or other non-orbital facial infections. Do not assign it when the record specifies a different orbital side.
Coding tip
Verify laterality in the chart; unspecified orbit codes are only correct when the side is not documented.