H00: Hordeolum and chalazion

Codes under H00 (Hordeolum and chalazion). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

Code	Description	Billable
H00.0	Hordeolum (externum) (internum) of eyelid	—
H00.01	Hordeolum externum	—
H00.1	Chalazion	—
H00.02	Hordeolum internum	—
H00.03	Abscess of eyelid	—
H00.011	Hordeolum externum right upper eyelid	✓
H00.11	Chalazion right upper eyelid	✓
H00.012	Hordeolum externum right lower eyelid	✓
H00.12	Chalazion right lower eyelid	✓
H00.013	Hordeolum externum right eye, unspecified eyelid	✓
H00.13	Chalazion right eye, unspecified eyelid	✓
H00.014	Hordeolum externum left upper eyelid	✓
H00.14	Chalazion left upper eyelid	✓
H00.015	Hordeolum externum left lower eyelid	✓
H00.15	Chalazion left lower eyelid	✓
H00.016	Hordeolum externum left eye, unspecified eyelid	✓
H00.16	Chalazion left eye, unspecified eyelid	✓
H00.019	Hordeolum externum unspecified eye, unspecified eyelid	✓
H00.19	Chalazion unspecified eye, unspecified eyelid	✓
H00.021	Hordeolum internum right upper eyelid	✓
H00.022	Hordeolum internum right lower eyelid	✓
H00.023	Hordeolum internum right eye, unspecified eyelid	✓
H00.024	Hordeolum internum left upper eyelid	✓
H00.025	Hordeolum internum left lower eyelid	✓
H00.026	Hordeolum internum left eye, unspecified eyelid	✓
H00.029	Hordeolum internum unspecified eye, unspecified eyelid	✓
H00.031	Abscess of right upper eyelid	✓
H00.032	Abscess of right lower eyelid	✓
H00.033	Abscess of eyelid right eye, unspecified eyelid	✓
H00.034	Abscess of left upper eyelid	✓
H00.035	Abscess of left lower eyelid	✓
H00.036	Abscess of eyelid left eye, unspecified eyelid	✓
H00.039	Abscess of eyelid unspecified eye, unspecified eyelid	✓

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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.

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