H04.421 Chronic lacrimal canaliculitis of right lacrimal passage

Billable ICD-10-CM code, FY2026.

Applies from H04 Disorders of lacrimal system

Excludes1 (never code together)

• congenital malformations of lacrimal system (Q10.4-Q10.6)

MS-DRG index

Defines the logic of DRG(s) 124-125 in MDC 02.

Approximate ICD-9-CM (GEMs)

• 375.41 Chronic canaliculitis (approximate)

Nearby codes

• H04.411 Chronic dacryocystitis of right lacrimal passage
• H04.412 Chronic dacryocystitis of left lacrimal passage
• H04.413 Chronic dacryocystitis of bilateral lacrimal passages
• H04.419 Chronic dacryocystitis of unspecified lacrimal passage
• H04.42 Chronic lacrimal canaliculitis
• H04.421 Chronic lacrimal canaliculitis of right lacrimal passage (this code)
• H04.422 Chronic lacrimal canaliculitis of left lacrimal passage
• H04.423 Chronic lacrimal canaliculitis of bilateral lacrimal passages
• H04.429 Chronic lacrimal canaliculitis of unspecified lacrimal passage
• H04.43 Chronic lacrimal mucocele
• H04.431 Chronic lacrimal mucocele of right lacrimal passage