ICD-10 Code H10.50 – Unspecified blepharoconjunctivitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H10.50 – Unspecified blepharoconjunctivitis
What it is
Use this code for inflammation involving both the eyelid margin and conjunctiva when the record does not specify a type or cause. It indicates a combined blepharitis-conjunctivitis picture without further detail.
Clinical signs
Common findings include red, irritated eyes with lid margin inflammation, crusting, tearing, itching, or discharge. Clinical features vary; refer to documentation.
When to use this code
Choose H10.50 when the provider documents blepharoconjunctivitis but does not identify a specific organism, allergic cause, or other subtype. Use it for nonspecific or incomplete documentation of concurrent eyelid and conjunctival inflammation. If laterality or etiology is documented elsewhere, code that information instead.
Do not use for
Do not use this code when the record clearly identifies allergic, viral, bacterial, or other specified conjunctivitis. Also avoid it if the diagnosis is isolated blepharitis or conjunctivitis without combined involvement.
Coding tip
Check the note for cause and specificity before assigning H10.50, because a more specific code may be available.