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ICD-10-CM · FY 2026 APRIL UPDATE

H40.5

Glaucoma secondary to other eye disorders

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
H40.50Glaucoma secondary to other eye disorders, unspecified eyeCategory
H40.50X0Glaucoma secondary to other eye disorders, unspecified eye, stage unspecifiedBillable
H40.50X1Glaucoma secondary to other eye disorders, unspecified eye, mild stageBillable
H40.50X2Glaucoma secondary to other eye disorders, unspecified eye, moderate stageBillable
H40.50X3Glaucoma secondary to other eye disorders, unspecified eye, severe stageBillable
H40.50X4Glaucoma secondary to other eye disorders, unspecified eye, indeterminate stageBillable
H40.51Glaucoma secondary to other eye disorders, right eyeCategory
H40.51X0Glaucoma secondary to other eye disorders, right eye, stage unspecifiedBillable
H40.51X1Glaucoma secondary to other eye disorders, right eye, mild stageBillable
H40.51X2Glaucoma secondary to other eye disorders, right eye, moderate stageBillable
H40.51X3Glaucoma secondary to other eye disorders, right eye, severe stageBillable
H40.51X4Glaucoma secondary to other eye disorders, right eye, indeterminate stageBillable
H40.52Glaucoma secondary to other eye disorders, left eyeCategory
H40.52X0Glaucoma secondary to other eye disorders, left eye, stage unspecifiedBillable
H40.52X1Glaucoma secondary to other eye disorders, left eye, mild stageBillable
H40.52X2Glaucoma secondary to other eye disorders, left eye, moderate stageBillable
H40.52X3Glaucoma secondary to other eye disorders, left eye, severe stageBillable
H40.52X4Glaucoma secondary to other eye disorders, left eye, indeterminate stageBillable
H40.53Glaucoma secondary to other eye disorders, bilateralCategory
H40.53X0Glaucoma secondary to other eye disorders, bilateral, stage unspecifiedBillable
H40.53X1Glaucoma secondary to other eye disorders, bilateral, mild stageBillable
H40.53X2Glaucoma secondary to other eye disorders, bilateral, moderate stageBillable
H40.53X3Glaucoma secondary to other eye disorders, bilateral, severe stageBillable
H40.53X4Glaucoma secondary to other eye disorders, 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.