Skip to content
Dx

ICD-10-CM 2027

ICD-10 code for chronic canaliculitis

H04.42

Chronic lacrimal canaliculitis

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Canaliculitis (lacrimal) (acute) (subacute) › chronic”. Page updated September 29, 2026.

About coding chronic canaliculitis

The ICD-10-CM code for chronic canaliculitis is H04.42 (Chronic lacrimal canaliculitis).

Within H04.4 (chronic inflammation of lacrimal passages), H04.42 is specifically for chronic lacrimal canaliculitis. Related codes cover dacryocystitis (H04.41) and lacrimal mucocele (H04.43).

To report this condition, pick the subcode that matches the documentation: H04.421 (of right lacrimal passage), H04.422 (of left lacrimal passage), H04.423 (of bilateral lacrimal passages) and H04.429 (of unspecified lacrimal passage).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Common questions about chronic canaliculitis ICD-10 codes

What is the ICD-10 code for chronic canaliculitis?

H04.42 — Chronic lacrimal canaliculitis (a header code; report a more specific subcode).

Is H04.42 billable?

No. H04.42 is a header code. Report one of its more specific subcodes instead.