B30

Non-billable

Viral conjunctivitis

B30 is the ICD-10-CM code for Viral conjunctivitis. It is a non-billable category code — use a more specific child code such as B30.0 for billing.

Status
Header (non-billable)
Chapter
A00-B99
Subcodes
6
Edition
FY2026

A00-B99 Certain infectious and parasitic diseases

What this means — in plain language

MedlinePlus · NIH

Conjunctivitis 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.

Excludes1 — not coded here

  • herpesviral [herpes simplex] ocular disease (B00.5)
  • ocular zoster (B02.3)

Frequently asked questions

What is ICD-10 code B30?
B30 is the ICD-10-CM code for "Viral conjunctivitis". It falls under A00-B99 Certain infectious and parasitic diseases.
Is B30 a billable code?
No — B30 is a non-billable header code. Use a more specific child code (such as B30.0) for billing.
What are the subcodes of B30?
B30 has 6 more specific child codes, including B30.0, B30.1, B30.2.
What is excluded from B30?
Excludes1 (not coded here): herpesviral [herpes simplex] ocular disease (B00.5); ocular zoster (B02.3).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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