ICD-10 Code H10.89 – Other conjunctivitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H10.89 – Other conjunctivitis
What it is
H10.89 identifies conjunctivitis that is not described by a more specific ICD-10 code. Use it when the provider documents other conjunctivitis and the record does not support a named subtype.
Clinical signs
Clinical features vary; refer to documentation. Conjunctivitis may present with eye redness, irritation, tearing, discharge, or a foreign-body sensation, but the specific cause must be documented for accurate coding.
When to use this code
Use H10.89 when the clinician documents “other conjunctivitis” or a comparable non-specific conjunctival inflammation. It is appropriate when the chart does not identify allergic, acute, chronic, or another more precise form. Check documentation if the etiology is unclear.
Do not use for
Do not use this code when the record supports a more specific conjunctivitis type, such as allergic or acute conjunctivitis. If the diagnosis is uncertain or another eye disorder is documented, select the code that matches the final provider statement.
Coding tip
Before assigning H10.89, confirm that the provider’s wording truly indicates a non-specific “other” conjunctivitis and not a more specific subtype.