Hordeolum and chalazion (H00)
ICD-10 code H00 covers diagnoses related to hordeolum (styes) and chalazion, common eyelid abnormalities characterized by inflammation or cyst formation. These codes specify the exact location and type of lesion affecting the eyelids, aiding precise clinical documentation.
This section includes codes for hordeolum externum (H00.01 series) and hordeolum internum (H00.02 series), distinguishing infections of the outer and inner eyelid glands. For example, H00.011 is used for a hordeolum externum on the right upper eyelid, often referred to by synonyms such as “Meibomitis” or “External hordeolum.” Abscesses of the eyelid are classified under H00.03 codes, differentiating by eyelid side and location. The H00.1 series designates chalazions, cyst-like lumps caused by blocked meibomian glands, with subcodes specifying upper or lower eyelids and right or left eyes.
These codes help medical coders accurately report conditions like styes, eyelid cysts, and eyelid abscesses to ensure clear communication and appropriate care. Using synonyms such as “Meibomitis,” “Blepharitis,” or “Conjunctival cyst” linked to specific codes supports precise billing and clinical understanding. Thus, the ICD-10 code for hordeolum and chalazion enables detailed classification of eyelid inflammations and lesions critical for eye health management.
Diseases of the eye and adnexa (H00–H59)
Disorders of eyelid, lacrimal system and orbit (H00-H05)
H00 Hordeolum and chalazion
H00.0 Hordeolum (externum) (internum) of eyelid
H00.01 Hordeolum externum
- 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
H00.02 Hordeolum internum
- 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
H00.03 Abscess 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
H00.1 Chalazion
- H00.11 Chalazion right upper eyelid
- H00.12 Chalazion right lower eyelid
- H00.13 Chalazion right eye, unspecified eyelid
- H00.14 Chalazion left upper eyelid
- H00.15 Chalazion left lower eyelid
- H00.16 Chalazion left eye, unspecified eyelid
- H00.19 Chalazion unspecified eye, unspecified eyelid
Hordeolum and chalazion (H00)
Clinical Terms
The following clinical terms provide additional context, helping users better understand the clinical background and common associations for each diagnosis listed in this section. Including related terms alongside ICD-10-CM codes supports coders, billers, and healthcare professionals in improving accuracy, enhancing documentation, and facilitating research or patient education.
Chalazion
A non-neoplastic cyst of the MEIBOMIAN GLANDS of the eyelid.
Hordeolum
Purulent infection of one of the sebaceous glands of Zeis along the eyelid margin (external) or of the meibomian gland on the conjunctival side of the eyelid (internal).
Meibomian Glands
The sebaceous glands situated on the inner surface of the eyelids between the tarsal plates and CONJUNCTIVA.
