H16

Non-billable

Keratitis

H16 is the ICD-10-CM code for Keratitis. It is a non-billable category code — use a more specific child code such as H16.0 for billing.

Status
Header (non-billable)
Chapter
H00-H59
Subcodes
7
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 H16?
H16 is the ICD-10-CM code for "Keratitis". It falls under H00-H59 Diseases of the eye and adnexa.
Is H16 a billable code?
No — H16 is a non-billable header code. Use a more specific child code (such as H16.0) for billing.
What are the subcodes of H16?
H16 has 7 more specific child codes, including H16.0, H16.1, H16.2.

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

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