ICD-10-CM 2027
ICD-10 code for canaliculitis
From the official ICD-10-CM alphabetic index entry “Canaliculitis (lacrimal) (acute) (subacute)”. Page updated September 29, 2026.
About coding canaliculitis
The ICD-10-CM code for canaliculitis is H04.33 (Acute lacrimal canaliculitis). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on H04.33.
Within H04.3 (acute and unspecified inflammation of lacrimal passages), H04.33 is specifically for acute lacrimal canaliculitis. Related codes cover unspecified dacryocystitis (H04.30), Phlegmonous dacryocystitis (H04.31) and acute dacryocystitis (H04.32).
To report this condition, pick the subcode that matches the documentation: H04.331 (of right lacrimal passage), H04.332 (of left lacrimal passage), H04.333 (of bilateral lacrimal passages) and H04.339 (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.
More specific canaliculitis codes (official index)
Common questions about canaliculitis ICD-10 codes
What is the ICD-10 code for canaliculitis?
- H04.33 — Acute lacrimal canaliculitis (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: A42.89, H04.42.
What is the ICD-10 code for actinomyces canaliculitis?
- A42.89 — Other forms of actinomycosis.
What is the ICD-10 code for chronic canaliculitis?
- H04.42 — Chronic lacrimal canaliculitis (header code; choose a more specific subcode).
Is H04.33 billable?
- No. H04.33 is a header code. Report one of its more specific subcodes instead.