ICD-10-CM Code H40.50X0

Glaucoma secondary to other eye disorders, unspecified eye, stage unspecified

Version 2021 Billable Code

Valid for Submission

H40.50X0 is a billable code used to specify a medical diagnosis of glaucoma secondary to other eye disorders, unspecified eye, stage unspecified. The code is valid for the fiscal year 2021 for the submission of HIPAA-covered transactions. The ICD-10-CM code H40.50X0 might also be used to specify conditions or terms like bilateral congenital cataract of eyes, cataract glaucoma syndrome, congenital total cataract, ghost cell glaucoma, glaucoma and corneal anomaly, glaucoma associated with anterior segment anomaly, etc

Short Description:Glaucoma secondary to oth eye disord, unsp eye, stage unsp
Long Description:Glaucoma secondary to other eye disorders, unspecified eye, stage unspecified


The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Bilateral congenital cataract of eyes
  • Cataract glaucoma syndrome
  • Congenital total cataract
  • Ghost cell glaucoma
  • Glaucoma and corneal anomaly
  • Glaucoma associated with anterior segment anomaly
  • Glaucoma associated with iridocorneal endothelial syndrome
  • Glaucoma associated with ocular disorder
  • Glaucoma associated with tumors AND/OR cysts
  • Glaucoma associated with vascular disorder
  • Glaucoma caused by contact lens
  • Glaucoma due to chamber angle anomaly
  • Glaucoma due to intraocular neoplasm
  • Glaucoma due to iris anomaly
  • Glaucoma due to ocular cyst
  • Glaucoma due to ocular tumor or cyst
  • Glaucoma due to ocular vascular disorder
  • Glaucoma due to retinal detachment
  • Glaucoma with intraocular hemorrhage
  • Lens particle glaucoma
  • Mature cataract
  • Megalocornea
  • Megalocornea, spherophakia, secondary glaucoma syndrome
  • Neovascular glaucoma
  • Neovascular glaucoma due to hyphema
  • Neovascularization of angle
  • Phacogenic glaucoma
  • Phacogenic glaucoma
  • Phacolytic glaucoma
  • Phacomorphic glaucoma
  • pT1: Tumor limited to the iris
  • pT1c category
  • pT1c: Tumor limited to the iris with melanomalytic glaucoma
  • pT2: Tumor confluent with or extending into the ciliary body and/or choroid
  • pT2a: Tumor confluent with or extending into the ciliary body and/or choroid with melanomalytic glaucoma
  • pT3: Tumor confluent with or extending into the ciliary body and/or choroid with scleral extension
  • pT3a: Tumor confluent with or extending into the ciliary body and/or choroid with scleral extension and melanomalytic glaucoma
  • Schwartz ocular syndrome
  • Secondary angle-closure glaucoma - synechial
  • Secondary angle-closure glaucoma with pupillary block
  • Secondary glaucoma
  • Secondary glaucoma due to combination mechanisms
  • Secondary open-angle glaucoma

Diagnostic Related Groups

The ICD-10 code H40.50X0 is grouped in the following groups for version MS-DRG V38.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC).
applicable from 10/01/2020 through 09/30/2021.


Convert H40.50X0 to ICD-9

  • 365.59 - Glaucoma w lens dis NEC (Combination Flag)
  • 365.60 - Glauc w ocular dis NOS (Combination Flag)
  • 365.61 - Glauc w pupillary block (Combination Flag)
  • 365.64 - Glaucoma w tumor or cyst (Combination Flag)
  • 365.70 - Glaucoma stage NOS (Combination Flag)

Code Classification

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021

Information for Patients


Glaucoma is a group of diseases that can damage the eye's optic nerve. It is a leading cause of blindness in the United States. It usually happens when the fluid pressure inside the eyes slowly rises, damaging the optic nerve. Often there are no symptoms at first. Without treatment, people with glaucoma will slowly lose their peripheral, or side vision. They seem to be looking through a tunnel. Over time, straight-ahead vision may decrease until no vision remains.

A comprehensive eye exam can tell if you have glaucoma. People at risk should get eye exams at least every two years. They include

  • African Americans over age 40
  • People over age 60, especially Mexican Americans
  • People with a family history of glaucoma

There is no cure, but glaucoma can usually be controlled. Early treatment can help protect your eyes against vision loss. Treatments usually include prescription eyedrops and/or surgery.

NIH: National Eye Institute

  • Glaucoma (Medical Encyclopedia)
  • Ophthalmoscopy (Medical Encyclopedia)
  • Standard ophthalmic exam (Medical Encyclopedia)
  • Tonometry (Medical Encyclopedia)

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