2026 ICD-10-CM Diagnosis Code H21.02Hyphema, left eye

ICD-10-CM Codes›H00–H59›H15-H22›H21

ICD-10-CM H21.02
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

H21.02 is a billable ICD-10-CM diagnosis code for hyphema, left eye. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 124 through 125. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified eye disorders.

Code Identity

ICD-10-CM Code
H21.02
Billable Status
Yes — Valid for Submission
Code Describes
Hyphema, left eye
Short Description
Hyphema, left eye
Same as the full description in the CMS dataset.
Parent Code
H21.0
Hyphema

Code Classification

ChapterH00–H59Diseases of the eye and adnexa
SectionH15-H22Disorders of sclera, cornea, iris and ciliary body
CategoryH21Other disorders of iris and ciliary body
This CodeH21.02Hyphema, left eye

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Glaucoma of left eye with intraocular hemorrhage
  • Glaucoma with intraocular hemorrhage
  • Hemorrhage associated with implant
  • Hyphema of left eye
  • Intraocular lens associated postoperative inflammation
  • Postoperative uveitis
  • Secondary open angle glaucoma due to ocular surgery
  • Secondary open angle glaucoma of left eye due to ocular surgery
  • Spontaneous hyphema
  • Spontaneous hyphema of left eye
  • Uveitis-glaucoma-hyphema syndrome
  • Uveitis-glaucoma-hyphema syndrome of left eye

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR EYE012
Other specified eye disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Hyphema

    bleeding in the anterior chamber of the eye.

Patient EducationClinical

Eye Diseases

Even if your eyes feel healthy, you could have a problem and not know it. That's why regular eye exams are so important. Refractive errors are the most common type of vision problem that makes it hard to see clearly. But some eye conditions or diseases don't have any symptoms and can lead to a permanent loss of vision.

The full article covers:

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Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert H21.02 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
364.41 Hyphema
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About H21.02Overview

Is H21.02 (Hyphema) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report hyphema, left eye on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does H21.02 group to?

When hyphema, left eye is the principal diagnosis on an inpatient stay, it groups to MS-DRG 124, 125, with relative weights from 0.7678 to 1.3231 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of H21.02?

Under the General Equivalence Mappings, hyphema, left eye converts to ICD-9-CM 364.41 (hyphema). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.