H10.42
Non-billableSimple chronic conjunctivitis
H10.42 is the ICD-10-CM code for Simple chronic conjunctivitis. It is a non-billable category code — use a more specific child code such as H10.421 for billing.
H00-H59 Diseases of the eye and adnexa
What this means — in plain language
MedlinePlus · NIHConjunctivitis is the medical name for pink eye. It involves inflammation of the outer layer of the eye and inside of the eyelid. It can cause swelling, itching, burning, discharge, and redness. Causes include: Bacterial or viral infection Allergies Substances that cause irritation Contact lens products, eye drops, or eye ointments Pink eye usually does not affect vision. Infectious pink eye can easily spread from…
Read more about Pink Eye at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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