H18.55

Non-billable

Macular corneal dystrophy

H18.55 is the ICD-10-CM code for Macular corneal dystrophy. It is a non-billable category code — use a more specific child code such as H18.551 for billing.

Status
Header (non-billable)
Chapter
H00-H59
Parent
H18.5
Subcodes
4
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 H18.55?
H18.55 is the ICD-10-CM code for "Macular corneal dystrophy". It falls under H00-H59 Diseases of the eye and adnexa.
Is H18.55 a billable code?
No — H18.55 is a non-billable header code. Use a more specific child code (such as H18.551) for billing.
What are the subcodes of H18.55?
H18.55 has 4 more specific child codes, including H18.551, H18.552, H18.553.

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

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