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H00.01

Non-billable

Hordeolum externum

H00.01 is the ICD-10-CM code for Hordeolum externum. It is a non-billable category code — use a more specific child code such as H00.011 for billing.

Status
Header (non-billable)
Chapter
H00-H59
Parent
H00.0
Subcodes
7
Edition
FY2026

H00-H59 Diseases of the eye and adnexa

Includes

  • •Hordeolum NOS
  • •Stye

Frequently asked questions

What is ICD-10 code H00.01?
H00.01 is the ICD-10-CM code for "Hordeolum externum". It falls under H00-H59 Diseases of the eye and adnexa.
Is H00.01 a billable code?
No — H00.01 is a non-billable header code. Use a more specific child code (such as H00.011) for billing.
What are the subcodes of H00.01?
H00.01 has 7 more specific child codes, including H00.011, H00.012, H00.013.

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

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