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ICD-10-CM · FY 2026 APRIL UPDATE

H40.4

Glaucoma secondary to eye inflammation

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
H40.40Glaucoma secondary to eye inflammation, unspecified eyeCategory
H40.40X0Glaucoma secondary to eye inflammation, unspecified eye, stage unspecifiedBillable
H40.40X1Glaucoma secondary to eye inflammation, unspecified eye, mild stageBillable
H40.40X2Glaucoma secondary to eye inflammation, unspecified eye, moderate stageBillable
H40.40X3Glaucoma secondary to eye inflammation, unspecified eye, severe stageBillable
H40.40X4Glaucoma secondary to eye inflammation, unspecified eye, indeterminate stageBillable
H40.41Glaucoma secondary to eye inflammation, right eyeCategory
H40.41X0Glaucoma secondary to eye inflammation, right eye, stage unspecifiedBillable
H40.41X1Glaucoma secondary to eye inflammation, right eye, mild stageBillable
H40.41X2Glaucoma secondary to eye inflammation, right eye, moderate stageBillable
H40.41X3Glaucoma secondary to eye inflammation, right eye, severe stageBillable
H40.41X4Glaucoma secondary to eye inflammation, right eye, indeterminate stageBillable
H40.42Glaucoma secondary to eye inflammation, left eyeCategory
H40.42X0Glaucoma secondary to eye inflammation, left eye, stage unspecifiedBillable
H40.42X1Glaucoma secondary to eye inflammation, left eye, mild stageBillable
H40.42X2Glaucoma secondary to eye inflammation, left eye, moderate stageBillable
H40.42X3Glaucoma secondary to eye inflammation, left eye, severe stageBillable
H40.42X4Glaucoma secondary to eye inflammation, left eye, indeterminate stageBillable
H40.43Glaucoma secondary to eye inflammation, bilateralCategory
H40.43X0Glaucoma secondary to eye inflammation, bilateral, stage unspecifiedBillable
H40.43X1Glaucoma secondary to eye inflammation, bilateral, mild stageBillable
H40.43X2Glaucoma secondary to eye inflammation, bilateral, moderate stageBillable
H40.43X3Glaucoma secondary to eye inflammation, bilateral, severe stageBillable
H40.43X4Glaucoma secondary to eye inflammation, bilateral, indeterminate stageBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.