ICD-10 Code H04.221 – Epiphora due to insufficient drainage, right side (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H04.221 – Epiphora due to insufficient drainage, right side
What it is
H04.221 identifies tearing of the right eye caused by poor tear drainage. Use it when the chart specifies the right side and the problem is insufficient outflow, not excess tear production.
Clinical signs
Typical documentation includes persistent watery eye, tear overflow onto the cheek, or blockage-related tearing on the right. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents epiphora from inadequate drainage affecting the right side, such as nasolacrimal outflow impairment. It is appropriate when the record clearly distinguishes drainage failure from other causes of tearing. Check documentation if laterality or cause is unclear.
Do not use for
Do not use it for tearing due to irritation, allergy, or increased tear production without drainage impairment. Do not assign it if the right side is not documented or if the cause is unspecified.
Coding tip
Confirm both laterality and the drainage-related cause before coding H04.221.