ICD-10 Code H10.2 – Other acute conjunctivitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H10.2 – Other acute conjunctivitis
What it is
Use this code for an acute, nonspecified conjunctival inflammation that does not fit a more specific conjunctivitis category. It describes a short-term eye surface irritation affecting the conjunctiva.
Clinical signs
Common findings include eye redness, tearing, irritation, and discharge. Clinical features vary; refer to documentation.
When to use this code
Assign H10.2 when the record documents acute conjunctivitis but does not identify a specific type, such as allergic, viral, or bacterial. Use it when the clinician describes the condition as “other” or when the available documentation supports an acute conjunctival process without further detail.
Do not use for
Do not use this code for chronic conjunctivitis or for conjunctivitis with a documented specific cause that has its own code. Check documentation if the record names an organism, allergy, or another defined subtype.
Coding tip
If the note is nonspecific, code the documented acute conjunctivitis and avoid assuming a cause.