ICD-10 Code H10.022 – Other mucopurulent conjunctivitis, left eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H10.022 – Other mucopurulent conjunctivitis, left eye
What it is
This code identifies mucopurulent conjunctivitis affecting the left eye when the condition is not otherwise specified as a more exact type. It indicates inflammation of the conjunctiva with mucus and pus-like discharge.
Clinical signs
Typical findings include conjunctival redness, eye discharge that may be thick or sticky, and irritation or a gritty sensation. Clinical features vary; refer to documentation.
When to use this code
Use H10.022 when the provider documents other mucopurulent conjunctivitis limited to the left eye. This is appropriate when the record does not support a more specific conjunctivitis code. You should confirm laterality and whether the diagnosis is clearly noninfective, allergic, or otherwise classified.
Do not use for
Do not use this code for conjunctivitis in the right eye, both eyes, or unspecified eye. Also avoid it if the documentation supports a different conjunctivitis type, such as allergic or viral.
Coding tip
Always verify laterality and the exact conjunctivitis type in the note before assigning H10.022.