ICD-10 Code H44.512 – Absolute Glaucoma, Left Eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H44.512 – Absolute glaucoma, left eye
What it is
H44.512 identifies absolute glaucoma in the left eye, meaning the eye has severe, end-stage glaucomatous damage with no useful vision remaining. Use it when the left eye is specifically documented as affected.
Clinical signs
Clinical features vary; refer to documentation. End-stage glaucoma may show profound vision loss, marked optic nerve damage, and a blind or nearly blind eye.
When to use this code
Use H44.512 when the provider documents absolute glaucoma in the left eye, or describes end-stage glaucomatous blindness affecting that eye. Code it from ophthalmology notes, problem lists, or discharge summaries when the laterality is clear. Check documentation if the record only says glaucoma without severity.
Do not use for
Do not use this code for suspect, mild, or uncontrolled glaucoma without end-stage loss of vision. If the eye involved is not stated, or the chart only says glaucoma, check documentation.
Coding tip
Always confirm both laterality and the term “absolute” or equivalent end-stage wording before assigning H44.512.