H04.421
✓ Billable
Chronic lacrimal canaliculitis of right lacrimal passage
ICD-10-CM · FY2026 · Diseases of the Eye and Adnexa
Code
H04.421
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Diseases of the Eye and Adnexa
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code H04.421?
ICD-10-CM code H04.421 represents Chronic lacrimal canaliculitis of right lacrimal passage. It is a billable diagnosis code in the Diseases of the Eye and Adnexa chapter, effective October 1, 2025 – September 30, 2026.
Is H04.421 billable?
Yes. H04.421 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is H04.421 in?
H04.421 belongs to the Diseases of the Eye and Adnexa chapter (H00–H59) of ICD-10-CM.
Related codes in the H04 category
H04
Disorders of lacrimal system
Non-billable
H04.0
Dacryoadenitis
Non-billable
H04.1
Other disorders of lacrimal gland
Non-billable
H04.2
Epiphora
Non-billable
H04.3
Acute and unspecified inflammation of lacrimal passages
Non-billable
H04.4
Chronic inflammation of lacrimal passages
Non-billable
H04.5
Stenosis and insufficiency of lacrimal passages
Non-billable
H04.6
Other changes of lacrimal passages
Non-billable
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