ICD-10 Code H18.313 – Folds and rupture in Bowman’s membrane, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H18.313 – Folds and rupture in Bowman’s membrane, bilateral
What it is
H18.313 identifies folds and rupture in Bowman’s membrane in both eyes. This is a corneal finding, so you should use it when documentation specifically describes bilateral involvement.
Clinical signs
Clinical features vary; refer to documentation. Records may note corneal folds, rupture, or other structural changes in Bowman’s membrane on examination or ophthalmic imaging.
When to use this code
Use this code when the provider documents folds and rupture in Bowman’s membrane affecting both eyes. It is appropriate for ophthalmology notes, problem lists, or encounter diagnoses that clearly identify the bilateral condition. Check documentation if the laterality is unclear.
Do not use for
Do not use this code for corneal disorders without Bowman’s membrane involvement or when the condition is documented in only one eye. If the record does not specify bilateral disease, check documentation.
Coding tip
Confirm both the membrane finding and bilateral laterality before assigning H18.313.