2022 ICD-10-CM Code H40.4

Glaucoma secondary to eye inflammation

Version 2021

Not Valid for Submission

ICD-10:H40.4
Short Description:Glaucoma secondary to eye inflammation
Long Description:Glaucoma secondary to eye inflammation

Code Classification

H40.4 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of glaucoma secondary to eye inflammation. The code is not specific and is NOT valid for the year 2022 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding for Glaucoma secondary to eye inflammation

Non-specific codes like H40.4 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for glaucoma secondary to eye inflammation:

  • NON-BILLABLE CODE - H40.40 for Glaucoma secondary to eye inflammation, unspecified eye
  • BILLABLE CODE - Use H40.40X0 for stage unspecified
  • BILLABLE CODE - Use H40.40X1 for mild stage
  • BILLABLE CODE - Use H40.40X2 for moderate stage
  • BILLABLE CODE - Use H40.40X3 for severe stage
  • BILLABLE CODE - Use H40.40X4 for indeterminate stage
  • NON-BILLABLE CODE - H40.41 for Glaucoma secondary to eye inflammation, right eye
  • BILLABLE CODE - Use H40.41X0 for stage unspecified
  • BILLABLE CODE - Use H40.41X1 for mild stage
  • BILLABLE CODE - Use H40.41X2 for moderate stage
  • BILLABLE CODE - Use H40.41X3 for severe stage
  • BILLABLE CODE - Use H40.41X4 for indeterminate stage
  • NON-BILLABLE CODE - H40.42 for Glaucoma secondary to eye inflammation, left eye
  • BILLABLE CODE - Use H40.42X0 for stage unspecified
  • BILLABLE CODE - Use H40.42X1 for mild stage
  • BILLABLE CODE - Use H40.42X2 for moderate stage
  • BILLABLE CODE - Use H40.42X3 for severe stage
  • BILLABLE CODE - Use H40.42X4 for indeterminate stage
  • NON-BILLABLE CODE - H40.43 for Glaucoma secondary to eye inflammation, bilateral
  • BILLABLE CODE - Use H40.43X0 for stage unspecified
  • BILLABLE CODE - Use H40.43X1 for mild stage
  • BILLABLE CODE - Use H40.43X2 for moderate stage
  • BILLABLE CODE - Use H40.43X3 for severe stage
  • BILLABLE CODE - Use H40.43X4 for indeterminate stage

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code H40.4:


Code Also

Code Also
A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.

7th Character Note

7th Character Note
Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.

7th Character

7th Character
Indicates that a seventh character is to be assigned to codes in a subcategory.

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code H40.4 are found in the index:

Information for Patients


Glaucoma

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

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


[Learn More in MedlinePlus]

Code History

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