ICD-10 Code H31.402 – Unspecified choroidal detachment, left eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H31.402 – Unspecified choroidal detachment, left eye
What it is
Use this code for a choroidal detachment affecting the left eye when the record does not specify the cause or type. It indicates separation of the choroid from the underlying eye wall.
Clinical signs
Clinical features vary; refer to documentation. Commonly reported findings include decreased vision, ocular discomfort, or an abnormal posterior segment exam showing choroidal elevation or fluid collection.
When to use this code
Assign H31.402 when the clinician documents an unspecified choroidal detachment in the left eye and no more specific diagnosis is available. Use it for encounter notes, consults, or follow-up visits that still describe the condition as unspecified. Check documentation if the cause, laterality, or associated eye disorder is stated elsewhere.
Do not use for
Do not use this code for right eye, bilateral, or unspecified laterality cases. Do not use it when the record identifies a more specific choroidal disorder or a different retinal condition.
Coding tip
Confirm laterality in the ophthalmology note before assigning H31.402.