ICD-10 Code H31.42 – Serous choroidal detachment (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H31.42 – Serous choroidal detachment
What it is
Serous choroidal detachment is a buildup of fluid in the space around the choroid, causing it to separate from the eye wall. It is a nontraumatic ocular finding that may affect vision.
Clinical signs
Findings may include blurred vision, shallow anterior chamber, or elevated, smooth choroidal elevations on eye exam. Clinical features vary; refer to documentation.
When to use this code
Use H31.42 when the provider documents a serous choroidal detachment as the diagnosis. It may be appropriate when imaging or ophthalmic examination confirms fluid-related choroidal separation. Code the documented condition, not a presumed cause unless separately stated.
Do not use for
Do not use this code for choroidal detachment described as hemorrhagic or traumatic. Check documentation if the record only mentions choroidal effusion without specifying serous detachment.
Coding tip
Confirm laterality and any documented cause in the chart before assigning additional codes.