ICD-10-CM Code For Hordeolum And Chalazion: Group Overview

The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group H00 includes hordeolum and chalazion diagnoses, covering acute infective eyelid styes, internal hordeola, and chronic granulomatous chalazia of the eyelid. These ICD-10-CM diagnosis codes are used to document eyelid inflammatory lesions, capturing laterality, acute versus chronic presentations, and associated complications. Accurate coding within the ICD-10-CM H00 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

Customize your policy alerts

Sign up for ICD-10-CM Code For Hordeolum And Chalazion: Group Overview policy alerts

Get alerted when relevant policies change without checking for updates manually.

Monitor payer policy activity

Receive email alerts as soon as relevant payer policies are published or updated.

ICD-10-CM H00: Hordeolum And Chalazion Overview

The ICD-10-CM H00 group covers hordeolum (stye) and chalazion, localized eyelid lesions related to infection or blocked meibomian glands affecting the eyelid margin and tarsal plate. These diagnoses target the eyelid and adnexal structures of the visual system and represent common inflammatory conditions seen in outpatient and ophthalmology settings. Accurate coding ensures clear clinical documentation and supports appropriate reimbursement for services related to diagnosis and management.

When to Use

Use a code from this group when documenting an encounter for evaluation or treatment of a hordeolum or chalazion noted on the eyelid. Select codes that reflect the type of lesion, acute or chronic status, and laterality as documented in the medical record.

ICD-10-CM Codes

28 rows

ICD-10-CM Code	Description
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
H00.021	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
H00.031	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

Showing 1–20 of 28

DRG Codes

2 rows

DRG Code	Description
124	Other Disorders of the Eye with MCC or Thrombolytic Agent
125	Other Disorders of the Eye without MCC

Typical Clinical Scenarios

An adult presents to urgent care with a rapidly painful, erythematous, swollen area on the lateral aspect of the upper eyelid that started 24–48 hours ago, associated with a visible tender pustule and localized eyelid edema. The clinician diagnoses an acute external stye (hordeolum externum) and documents laterality and eyelid location to guide coding; an acute presentation and suppurative signs prompt selection of an acute hordeolum code. Typical codes: H00.011, H00.012.
A middle-aged patient seen in ophthalmology clinic for a persistent, painless eyelid nodule present for several weeks that causes cosmetic concern and intermittent eyelid rubbing; conservative measures have failed and a chalazion is clinically diagnosed on the lower eyelid. Because this is a chronic, noninfectious eyelid granuloma without acute suppuration, a chalazion code specifying laterality and eyelid (upper vs lower) is assigned. Typical codes: H00.031, H00.032.
A patient with a history of recurrent eyelid infections and meibomian gland dysfunction presents with multiple tender nodules on both upper and lower eyelids, one of which has become fluctuant and required incision and drainage during the visit. The encounter documents both chronic/recurrent lesions and an acute infected lesion treated surgically, so coding includes the acute infected hordeolum for the drained lesion and may also capture recurrent/chronic eyelid lesions as applicable. Typical codes: H00.019, H00.039.

Related Codes

H01-OTHER-INFLAMMATION-OF-EYELID

ICD-10-CM Code For Other Inflammation Of Eyelid: Group Overview

H02-OTHER-DISORDERS-OF-EYELID

ICD-10-CM Code For Other Disorders Of Eyelid: Group Overview

H04-DISORDERS-OF-LACRIMAL-SYSTEM

ICD-10-CM Code For Disorders Of Lacrimal System: Group Overview

H05-DISORDERS-OF-ORBIT

ICD-10-CM Code For Disorders Of Orbit: Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.

Explore openpayer tools

View all tools

When to Use

ICD-10-CM Codes

28 rows

ICD-10-CM Code	Description
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
H00.021	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
H00.031	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

Showing 1–20 of 28

DRG Codes

2 rows

DRG Code	Description
124	Other Disorders of the Eye with MCC or Thrombolytic Agent
125	Other Disorders of the Eye without MCC

Typical Clinical Scenarios

An adult presents to urgent care with a rapidly painful, erythematous, swollen area on the lateral aspect of the upper eyelid that started 24–48 hours ago, associated with a visible tender pustule and localized eyelid edema. The clinician diagnoses an acute external stye (hordeolum externum) and documents laterality and eyelid location to guide coding; an acute presentation and suppurative signs prompt selection of an acute hordeolum code. Typical codes: H00.011, H00.012.
A middle-aged patient seen in ophthalmology clinic for a persistent, painless eyelid nodule present for several weeks that causes cosmetic concern and intermittent eyelid rubbing; conservative measures have failed and a chalazion is clinically diagnosed on the lower eyelid. Because this is a chronic, noninfectious eyelid granuloma without acute suppuration, a chalazion code specifying laterality and eyelid (upper vs lower) is assigned. Typical codes: H00.031, H00.032.
A patient with a history of recurrent eyelid infections and meibomian gland dysfunction presents with multiple tender nodules on both upper and lower eyelids, one of which has become fluctuant and required incision and drainage during the visit. The encounter documents both chronic/recurrent lesions and an acute infected lesion treated surgically, so coding includes the acute infected hordeolum for the drained lesion and may also capture recurrent/chronic eyelid lesions as applicable. Typical codes: H00.019, H00.039.

Related Codes

H01-OTHER-INFLAMMATION-OF-EYELID

ICD-10-CM Code For Other Inflammation Of Eyelid: Group Overview

H02-OTHER-DISORDERS-OF-EYELID

ICD-10-CM Code For Other Disorders Of Eyelid: Group Overview

H04-DISORDERS-OF-LACRIMAL-SYSTEM

ICD-10-CM Code For Disorders Of Lacrimal System: Group Overview

H05-DISORDERS-OF-ORBIT

ICD-10-CM Code For Disorders Of Orbit: Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

ICD-10-CM Code For Hordeolum And Chalazion: Group Overview

Sign up for ICD-10-CM Code For Hordeolum And Chalazion: Group Overview policy alerts

ICD-10-CM H00: Hordeolum And Chalazion Overview

ICD-10-CM Code For Hordeolum And Chalazion: Group Overview

Sign up for ICD-10-CM Code For Hordeolum And Chalazion: Group Overview policy alerts

ICD-10-CM H00: Hordeolum And Chalazion Overview

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

What diagnoses are included in the ICD-10-CM H00 group?

How does the H00 group capture laterality and eyelid location?

Which specific codes denote abscesses of the eyelid?

How does accurate coding in H00 support reimbursement and claims?

What DRGs are related to the H00 diagnosis group?

References

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

What diagnoses are included in the ICD-10-CM H00 group?

How does the H00 group capture laterality and eyelid location?

Which specific codes denote abscesses of the eyelid?

How does accurate coding in H00 support reimbursement and claims?

What DRGs are related to the H00 diagnosis group?

References