ICD-10 Code H43.21 – Crystalline deposits in vitreous body, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H43.21 – Crystalline deposits in vitreous body, right eye
What it is
This code identifies crystalline deposits located in the vitreous body of the right eye. Use it when documentation specifically states right-eye vitreous crystals or similar wording.
Clinical signs
Clinical features vary; refer to documentation. Findings may include visible crystalline material in the vitreous on eye examination, sometimes noted during slit-lamp or dilated fundus evaluation.
When to use this code
Use H43.21 when the provider documents crystalline deposits in the vitreous body of the right eye. It is appropriate for a confirmed right-eye finding, whether incidental or part of a broader ophthalmic assessment. If the record does not specify laterality, check documentation before coding.
Do not use for
Do not use this code for crystalline deposits in the left eye, bilateral findings, or unspecified laterality. Also avoid it when the note describes another vitreous disorder without stating crystalline deposits.
Coding tip
Verify laterality in the ophthalmology note, because H43.21 is right-eye specific.