H00.1

Non-Billable

ChapterH00–H59

Ranksubcategory

Official Description

Chalazion

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Non-billable category (requires more specific sub-code).
•Chapter 7: Diseases of the Eye and Adnexa (H00-H59).

Instructional Notes

Includes

Meibomian (gland) cyst

Excludes2(Not included here)

infected meibomian gland (H00.02-)

General instructions are available for the parent sections:

View CH7 Notes View H00-H05 Notes

Clinical Hierarchy

CH7Diseases of the eye and adnexa (H00-H59)

H00-H05Disorders of eyelid, lacrimal system and orbit (H00-H05)

H00Hordeolum and chalazion

H00.1Chalazion

H00.11Chalazion right upper eyelid

H00.12Chalazion right lower eyelid

H00.13Chalazion right eye, unspecified eyelid

H00.14Chalazion left upper eyelid

H00.15Chalazion left lower eyelid

H00.16Chalazion left eye, unspecified eyelid

H00.19Chalazion unspecified eye, unspecified eyelid

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to H00.1:

blockH00-H05

Disorders of eyelid, lacrimal system and orbit (H00-H05)

View context instructions

chapterCH7

Diseases of the eye and adnexa (H00-H59)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to H00.1. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

7 raw paths

Chalazion7 unique routes

Direct index entry→H00.1

left→H00.1(3 variants)

lower→H00.1

upper→H00.1

right→H00.1(3 variants)

lower→H00.1

upper→H00.1

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

Find Procedures (ICD-10-PCS)

Find surgical and procedural codes related to Chalazion.

Search PCS Codes