2026 ICD-10-CM Diagnosis Code H44.513Absolute glaucoma, bilateral

ICD-10-CM Codes›H00–H59›H43-H44›H44

ICD-10-CM H44.513
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

H44.513 is a billable ICD-10-CM diagnosis code for absolute glaucoma, bilateral. 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. Coders also document this condition as absolute glaucoma. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Glaucoma.

Code Identity

ICD-10-CM Code
H44.513
Billable Status
Yes — Valid for Submission
Code Describes
Absolute glaucoma, bilateral
Short Description
Absolute glaucoma, bilateral
Same as the full description in the CMS dataset.
Parent Code
H44.51
Absolute glaucoma

Code Classification

ChapterH00–H59Diseases of the eye and adnexa
SectionH43-H44Disorders of vitreous body and globe
CategoryH44Disorders of globe
This CodeH44.513Absolute glaucoma, bilateral

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Absolute glaucoma
  • Absolute glaucoma left eye
  • Absolute glaucoma right eye
  • Bilateral absolute glaucoma

Clinical ClassificationClinical

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

CCSR EYE003
Glaucoma
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Glaucoma

Glaucoma is a group of diseases that can damage the optic nerve of one, or both, of your eyes. This can result in vision loss. There are different types of glaucoma, but the most common type is open-angle glaucoma. Other less common types include angle-closure glaucoma, and congenital glaucoma.

The full article covers:

  • What is glaucoma?
  • What causes glaucoma?
  • What are the symptoms of glaucoma?
  • How is glaucoma diagnosed?
  • What are the treatments for glaucoma?
  • Can glaucoma be prevented?

Read the full article at MedlinePlus

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

Convert H44.513 to ICD-9-CMHistory

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

ICD-9-CM
360.42 Blind hypertensive eye
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 H44.513Overview

Is H44.513 (Absolute glaucoma) a billable code?

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

What MS-DRG does H44.513 group to?

When absolute glaucoma, bilateral 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 H44.513?

Under the General Equivalence Mappings, absolute glaucoma, bilateral converts to ICD-9-CM 360.42 (blind hypertensive eye). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.