2027 ICD-10-CM Diagnosis Code H44.519Absolute glaucoma, unspecified eye

ICD-10-CM Codes›H00–H59›H43-H44›H44

ICD-10-CM H44.519
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

H44.519 is a billable ICD-10-CM diagnosis code for absolute glaucoma, unspecified eye. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) 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
H44.519
Billable Status
Yes — Valid for Submission
Code Describes
Absolute glaucoma, unspecified eye
Short Description
Absolute glaucoma, unspecified eye
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 CodeH44.519Absolute glaucoma, unspecified eye

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Absolute glaucoma

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to H44.519: its own notes plus those printed at H44 and Chapter 7. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From H44 Disorders of globe applies to 158 codes
  • disorders affecting multiple structures of eye

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 7 (H00-H59) Diseases of the eye and adnexa applies to 2,677 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • diabetes mellitus related eye conditions (E09.3-, E10.3-, E11.3-, E13.3-)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury (trauma) of eye and orbit (S05.-)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • syphilis related eye disorders (A50.01, A50.3-, A51.43, A52.71)

Notes

General instructions on how these codes are used.

From Chapter 7 (H00-H59) Diseases of the eye and adnexa applies to 2,677 codes
  • Use an external cause code following the code for the eye condition, if applicable, to identify the cause of the eye condition

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name H44.519, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming H44.519: they are not reported together with it, unless the two conditions are unrelated.

  • H40 Glaucoma
    absolute glaucoma (H44.51-) names H44.51-, which includes this code

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 H44.519 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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About H44.519Overview

What is the ICD-10 code for absolute glaucoma, unspecified eye?

The ICD-10-CM code for absolute glaucoma, unspecified eye is H44.519 (sometimes written as H44519). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is H44.519 (Absolute glaucoma) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report absolute glaucoma, unspecified eye on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does H44.519 group to?

When absolute glaucoma, unspecified eye is the principal diagnosis on an inpatient stay, it groups to MS-DRG 125, 124, with relative weights from 0.7699 to 1.2470 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of H44.519?

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