ICD-10 Code H04.21 – Epiphora due to excess lacrimation (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H04.21 – Epiphora due to excess lacrimation
What it is
This code identifies tearing caused by producing too many tears, rather than by blocked drainage. Use it when the clinician documents epiphora from excess lacrimation.
Clinical signs
Typical findings include persistent watery eyes, tear overflow onto the cheek, and irritation from constant moisture. Clinical features vary; refer to documentation.
When to use this code
Use H04.21 when the record clearly states epiphora is due to excess tear production. It fits cases where the problem is not obstruction of the tear duct or another eye disorder.
If the note only says “watery eyes,” check documentation for the cause before assigning this code. Code the documented underlying condition if another diagnosis explains the tearing.
Do not use for
Do not use this code for tearing caused by blocked nasolacrimal drainage, eyelid malposition, or injury unless excess lacrimation is specifically documented. Check documentation.
Coding tip
Confirm the provider links the tearing to excess lacrimation, not drainage obstruction, before coding H04.21.