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H40.50X2 vs H40.51X2

H40.50X2 (Glaucoma secondary to other eye disorders, unspecified eye, moderate stage) compared with H40.51X2 (Glaucoma secondary to other eye disorders, right eye, moderate stage), from the official CMS tabular data. H40.50X2 and H40.51X2 code the same condition on opposite sides. MedCoder-derived

Relationship

Review

Laterality relationship

H40.50X2
Unspecified
Glaucoma secondary to other eye disorders, unspecified eye, moderate stage
H40.51X2
Right
Glaucoma secondary to other eye disorders, right eye, moderate stage

Same condition; these differ only in which side is documented.

These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.

Source: ICD-10-CM tabular list (laterality variant derived from the code title)

Can these codes be reported together?

Same condition, opposite side. H40.50X2 and H40.51X2 name the same condition on opposite sides of the body.

Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.

Side by side

H40.50X2Glaucoma secondary to other eye disorders, unspecified eye, moderate stageH40.51X2Glaucoma secondary to other eye disorders, right eye, moderate stage
Billing statusBillableBillable
ClassificationH00-H59 — Diseases of the eye and adnexaH00-H59 — Diseases of the eye and adnexa
DefinitionGlaucoma secondary to other eye disorders, unspecified eye, moderate stage is a billable ICD-10-CM diagnosis code (H40.502).Glaucoma secondary to other eye disorders, right eye, moderate stage is a billable ICD-10-CM diagnosis code (H40.512).
7th characterOne of the following 7th characters is to be assigned to each code in subcategory H40.5 to designate the stage of glaucomaOne of the following 7th characters is to be assigned to each code in subcategory H40.5 to designate the stage of glaucoma

Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources