H00.02 vs H00.1

H00.02 (Hordeolum internum) compared with H00.1 (Chalazion), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).

Can these codes be reported together?

Yes, when both are documented. H00.1 carries an Excludes2 note covering H00.02: “infected meibomian gland (H00.02-)”

Excludes2 marks distinct conditions — both may be reported when both are documented.

Side by side

	H00.02Hordeolum internum	H00.1Chalazion
Billing status	Non-billable header Report instead: H00.021, H00.022, H00.023, H00.024, H00.025	Non-billable header Report instead: H00.11, H00.12, H00.13, H00.14, H00.15
Classification	H00-H59 — Diseases of the Eye and Adnexa (H00-H59)	H00-H59 — Diseases of the Eye and Adnexa (H00-H59)
Definition	Hordeolum internum is a non-billable ICD-10-CM category code (H00.02).	Chalazion is a non-billable ICD-10-CM category code (H00.1).
Includes	Infection of meibomian gland	Meibomian (gland) cyst

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Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources