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H00.0 vs L03

H00.0 (Hordeolum (externum) (internum) of eyelid) compared with L03 (Cellulitis and acute lymphangitis), 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. L03 carries an Excludes2 note covering H00.0: “cellulitis of eyelid (H00.0)”

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

Yes, when both are documented. L03 carries an Excludes2 note covering H00.0: “hordeolum (H00.0)”

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

Side by side

H00.0Hordeolum (externum) (internum) of eyelidL03Cellulitis and acute lymphangitis
Billing statusNon-billable header

Report instead: H00.011, H00.012, H00.013, H00.014, H00.015

Non-billable header

Report instead: L03.011, L03.012, L03.019, L03.021, L03.022

ClassificationH00-H59 — Diseases of the Eye and Adnexa (H00-H59)L00-L99 — Diseases of the Skin and Subcutaneous Tissue (L00-L99)
DefinitionHordeolum (externum) (internum) of eyelid is a non-billable ICD-10-CM category code (H00.0).Cellulitis and acute lymphangitis is a non-billable ICD-10-CM category code (L03).
Use additional code—
code (B95-B97) to identify infectious agent.
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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