ICD-10 Code H31.423 – Serous choroidal detachment, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H31.423 – Serous choroidal detachment, bilateral
What it is
H31.423 identifies a serous choroidal detachment affecting both eyes. It means fluid has collected in the choroidal space, causing the choroid to separate from the underlying eye wall.
Clinical signs
Findings may include bilateral ocular pain, blurred vision, or reduced visual acuity. Clinical features vary; refer to documentation, and confirm the detachment is serous rather than hemorrhagic or traumatic.
When to use this code
Use this code when the provider documents serous choroidal detachment in both eyes, whether diagnosed on exam or imaging. It is appropriate when the record clearly states bilateral involvement and does not specify a different choroidal disorder.
Do not use for
Do not use H31.423 for unilateral detachment, hemorrhagic choroidal detachment, or other retinal disorders. Check documentation if the note only says “choroidal effusion” or does not confirm both eyes.
Coding tip
Always verify laterality and the word “serous” in the provider note before assigning H31.423.