ICD-10 Code H10.232 – Serous conjunctivitis, except viral, left eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H10.232 – Serous conjunctivitis, except viral, left eye
What it is
H10.232 identifies serous conjunctivitis affecting the left eye, with a nonviral cause. It means the conjunctiva is inflamed and producing a watery or serous discharge.
Clinical signs
Typical findings include conjunctival redness, tearing, and a watery discharge in the left eye. Clinical features vary; refer to documentation for the exact cause and laterality.
When to use this code
Use this code when the provider documents serous conjunctivitis in the left eye and does not identify a viral cause. It is appropriate when the record specifies the condition as nonviral or excludes viral conjunctivitis. Check documentation if the etiology is unclear.
Do not use for
Do not use this code for viral conjunctivitis or when the affected eye is not the left eye. Do not assign it if the chart only says conjunctivitis without serous and laterality details.
Coding tip
Verify both laterality and nonviral wording in the note before coding H10.232.