H10.4

Non-billable

Chronic conjunctivitis

H10.4 is the ICD-10-CM code for Chronic conjunctivitis. It is a non-billable category code — use a more specific child code such as H10.40 for billing.

Status
Header (non-billable)
Chapter
H00-H59
Parent
H10
Subcodes
6
Edition
FY2026

H00-H59 Diseases of the eye and adnexa

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code H10.4?
H10.4 is the ICD-10-CM code for "Chronic conjunctivitis". It falls under H00-H59 Diseases of the eye and adnexa.
Is H10.4 a billable code?
No — H10.4 is a non-billable header code. Use a more specific child code (such as H10.40) for billing.
What are the subcodes of H10.4?
H10.4 has 6 more specific child codes, including H10.40, H10.41, H10.42.

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

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