ICD-10-CM · Chapter 7 · H00–H59
H00.021
Hordeolum internum right upper eyelid
Diseases of the eye and adnexa
Quick facts
- Code
- H00.021
- Type
- Billable code
- ICD-10-CM chapter
- Chapter 7 — Diseases of the eye and adnexa
- Category
- H00 — Hordeolum and chalazion
- Specificity
- 6 characters
How coders use this code
ICD-10-CM H00.021 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of hordeolum internum right upper eyelid. Coders assign it when the chart documentation supports this level of detail, always matching to the most specific code available and verifying against the chapter-specific guidelines published annually by NCHS/CMS.
Related codes in H00
- H00Hordeolum and chalazion
- H00.0Hordeolum (externum) (internum) of eyelid
- H00.01Hordeolum externum
- H00.011Hordeolum externum right upper eyelid
- H00.012Hordeolum externum right lower eyelid
- H00.013Hordeolum externum right eye, unspecified eyelid
- H00.014Hordeolum externum left upper eyelid
- H00.015Hordeolum externum left lower eyelid
- H00.016Hordeolum externum left eye, unspecified eyelid
- H00.019Hordeolum externum unspecified eye, unspecified eyelid
- H00.02Hordeolum internum
- H00.022Hordeolum internum right lower eyelid
- H00.023Hordeolum internum right eye, unspecified eyelid
- H00.024Hordeolum internum left upper eyelid
- H00.025Hordeolum internum left lower eyelid
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