1. H00 Hordeolum and chalazion

    1. H00.0 Hordeolum (externum) (internum) of eyelid

      1. H00.01 Hordeolum externum

        Inclusion term(s):

        • Hordeolum NOS
        • Stye
        • H00.011 Hordeolum externum right upper eyelid
        • H00.012 Hordeolum externum right lower eyelid
        • H00.013 Hordeolum externum right eye, unspecified eyelid
        • H00.014 Hordeolum externum left upper eyelid
        • H00.015 Hordeolum externum left lower eyelid
        • H00.016 Hordeolum externum left eye, unspecified eyelid
        • H00.019 Hordeolum externum unspecified eye, unspecified eyelid
      2. H00.02 Hordeolum internum

        Inclusion term(s):

        • Infection of meibomian gland
        • 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
      3. H00.03 Abscess of eyelid

        Inclusion term(s):

        • Furuncle of 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
    2. H00.1 Chalazion

      Inclusion term(s):

      • Meibomian (gland) cyst
      1. H00.11 Chalazion right upper eyelid

      2. H00.12 Chalazion right lower eyelid

      3. H00.13 Chalazion right eye, unspecified eyelid

      4. H00.14 Chalazion left upper eyelid

      5. H00.15 Chalazion left lower eyelid

      6. H00.16 Chalazion left eye, unspecified eyelid

      7. H00.19 Chalazion unspecified eye, unspecified eyelid

Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.