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H18.21

Non-billable

Corneal edema secondary to contact lens

H18.21 is the ICD-10-CM code for Corneal edema secondary to contact lens. It is a non-billable category code — use a more specific child code such as H18.211 for billing.

Status
Header (non-billable)
Chapter
H00-H59
Parent
H18.2
Subcodes
4
Edition
FY2026

H00-H59 Diseases of the eye and adnexa

Excludes2 — not included here

  • •other corneal disorders due to contact lens (H18.82-)

Frequently asked questions

What is ICD-10 code H18.21?
H18.21 is the ICD-10-CM code for "Corneal edema secondary to contact lens". It falls under H00-H59 Diseases of the eye and adnexa.
Is H18.21 a billable code?
No — H18.21 is a non-billable header code. Use a more specific child code (such as H18.211) for billing.
What are the subcodes of H18.21?
H18.21 has 4 more specific child codes, including H18.211, H18.212, H18.213.

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

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