ICD-10 Code H40.139 – Pigmentary glaucoma, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H40.139 – Pigmentary glaucoma, unspecified eye
What it is
This code identifies pigmentary glaucoma when the affected eye is not specified in the record. It refers to glaucoma associated with pigment dispersion and resulting optic nerve damage.
Clinical signs
Findings may include pigment in the anterior chamber, iris transillumination defects, elevated intraocular pressure, and glaucomatous optic nerve changes. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents pigmentary glaucoma but does not identify the right, left, or bilateral eye. It also fits follow-up visits where the diagnosis remains active and the eye laterality is still unspecified. Check documentation if laterality appears elsewhere in the chart.
Do not use for
Do not use this code for ocular hypertension without glaucoma, or for other secondary glaucomas with a different documented cause. Do not assign it when the provider specifies laterality and a more exact code is available.
Coding tip
If the note names the eye, code laterality instead of unspecified eye.