2026 ICD-10-CM Diagnosis Code H40.63X0Glaucoma secondary to drugs, bilateral, stage unspecified

ICD-10-CM CodesH00–H59H40-H42H40

ICD-10-CM H40.63X0
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

H40.63X0 is a billable ICD-10-CM diagnosis code for glaucoma secondary to drugs, bilateral, stage unspecified. The 7th character 0 reports glaucoma with the stage unspecified. 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 Drug induced or toxic related condition and Glaucoma.

Code Identity

ICD-10-CM Code
H40.63X0
Billable Status
Yes — Valid for Submission
Code Describes
Glaucoma secondary to drugs, bilateral, stage unspecified
Short Description
Glaucoma secondary to drugs, bilateral, stage unspecified
Same as the full description in the CMS dataset.
Parent Code
Glaucoma secondary to drugs, bilateral

Code Classification

ChapterH00–H59Diseases of the eye and adnexa
SectionH40-H42Glaucoma
CategoryH40Glaucoma
This CodeH40.63X0Glaucoma secondary to drugs, bilateral, stage unspecified

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Angle closure of left eye caused by drug
  • Angle closure of right eye caused by drug
  • Bilateral angle closure caused by drug
  • Bilateral glaucoma caused by silicone oil
  • Bilateral secondary angle closure glaucoma
  • Corticosteroid-induced open angle glaucoma
  • Drug-induced angle closure glaucoma
  • Drug-induced angle closure glaucoma of bilateral eyes
  • Drug-induced angle closure glaucoma of left eye
  • Drug-induced angle closure glaucoma of right eye
  • Drug-induced open angle glaucoma
  • Drug-induced open angle glaucoma of bilateral eyes
  • Drug-induced open angle glaucoma of left eye
  • Drug-induced open angle glaucoma of right eye
  • Glaucoma caused by silicone oil
  • Glaucoma of left eye caused by silicone oil
  • Glaucoma of right eye caused by silicone oil
  • Open angle glaucoma of bilateral eyes caused by corticosteroid
  • Open angle glaucoma of left eye caused by corticosteroid
  • Open angle glaucoma of right eye caused by corticosteroid

Clinical ClassificationClinical

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

CCSR INJ030
Drug induced or toxic related condition
Default principal diagnosis: inpatient No · outpatient No
CCSR EYE003
Glaucoma
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Drug Reactions

Most of the time, medicines make our lives better. They reduce aches and pains, fight infections, and control problems such as high blood pressure or diabetes. But medicines can also cause unwanted reactions, such as drug interactions, side effects, and allergies.

The full article covers:

  • What is a drug interaction?
  • What are side effects?
  • What are drug allergies?
  • How can I stay safe when taking medicines?

Read the full article at MedlinePlus

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

Convert H40.63X0 to ICD-9-CMHistory

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

ICD-9-CM
365.31 Glauc stage-ster induced
ApproximateCombination The match is approximate, and more than one code can be needed to describe the source diagnosis. Confirm with contextual judgment.
ICD-9-CM
365.32 Glauc resid-ster induced
ApproximateCombination The match is approximate, and more than one code can be needed to describe the source diagnosis. Confirm with contextual judgment.
ICD-9-CM
365.70 Glaucoma stage NOS
ApproximateCombination The match is approximate, and more than one code can be needed to describe the source diagnosis. Confirm with contextual judgment.

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 H40.63X0Overview

Is H40.63X0 (Glaucoma secondary to drugs, bilateral) a billable code?

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

What does the 7th character 0 in H40.63X0 mean?

The final character 0 reports glaucoma with the stage unspecified, in this case involving the glaucoma secondary to drugs.

What MS-DRG does H40.63X0 group to?

When glaucoma secondary to drugs, bilateral, stage unspecified 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 H40.63X0?

Under the General Equivalence Mappings, glaucoma secondary to drugs, bilateral, stage unspecified converts to ICD-9-CM 365.31 (glauc stage-ster induced), 365.32 (glauc resid-ster induced), and 365.70 (glaucoma stage NOS). 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.