ICD-10 Code H27.12 – Anterior dislocation of lens (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H27.12 – Anterior dislocation of lens
What it is
H27.12 identifies anterior dislocation of the lens, meaning the eye’s natural lens has moved forward from its normal position. Use it when documentation states the lens is displaced into the anterior chamber or otherwise anteriorly dislocated.
Clinical signs
Typical findings include sudden visual disturbance, eye pain, redness, or a shallow anterior chamber. Clinical features vary; refer to documentation, and confirm the lens is displaced anteriorly rather than subluxed or posteriorly dislocated.
When to use this code
Use this code when the provider documents anterior lens dislocation, whether traumatic, spontaneous, or related to an underlying eye disorder. It is also appropriate when imaging or ophthalmologic exam clearly identifies the lens in the anterior segment. If the note only says “lens dislocation,” check documentation for direction.
Do not use for
Do not use H27.12 for posterior lens dislocation, lens subluxation, or cataract alone. If the chart does not specify anterior displacement, check documentation before assigning this code.
Coding tip
Look for the exact direction of lens displacement in the ophthalmology note before coding.