ICD-10 Code H18.319 – Folds and rupture in Bowman’s membrane, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H18.319 – Folds and rupture in Bowman’s membrane, unspecified eye
What it is
This code identifies a documented fold or rupture in Bowman’s membrane of the cornea when the affected eye is not specified. It describes an anatomic corneal finding, not a treatment or procedure.
Clinical signs
Clinical features vary; refer to documentation. Findings may include corneal irregularity, reduced visual clarity, or slit-lamp evidence of Bowman’s membrane disruption.
When to use this code
Use H18.319 when the clinician documents folds or rupture in Bowman’s membrane and does not name the eye. Apply it for corneal findings recorded on exam, imaging, or ophthalmology assessment. If the record specifies right or left eye, use the laterality-specific code instead.
Do not use for
Do not use this code for other corneal disorders without Bowman’s membrane involvement. Check documentation if the note describes scarring, edema, or trauma only.
Coding tip
Confirm laterality in the ophthalmology note before assigning the unspecified-eye code.