ICD-10 Code H27.0 – Aphakia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H27.0 – Aphakia
What it is
Aphakia means the eye has no natural lens, usually after cataract surgery or trauma. It affects focusing and often causes blurred vision or major refractive change.
Clinical signs
Typical findings include absent crystalline lens on examination and reduced visual acuity. Clinical features vary; refer to documentation.
When to use this code
Use H27.0 when the record clearly states aphakia, whether unilateral or bilateral, or confirms an absent natural lens. Code it when the diagnosis is documented as the reason for follow-up, evaluation, or vision correction planning.
Apply it only when the condition is current and clinically relevant. If the note describes pseudophakia, cataract removal with intraocular lens, or another lens status, check documentation before assigning this code.
Do not use for
Do not use H27.0 for pseudophakia or routine aftercare following cataract extraction with lens implant. Do not assign it if aphakia is only suspected; check documentation.
Coding tip
Confirm whether the eye is truly lensless versus implanted with an intraocular lens before coding.