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ICD-10-CM 2027

ICD-10 code for Phlegmonous dacryocystitis

H04.31

Phlegmonous dacryocystitis

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Dacryocystitis › phlegmonous”. Page updated September 29, 2026.

About coding Phlegmonous dacryocystitis

The ICD-10-CM code for Phlegmonous dacryocystitis is H04.31 (Phlegmonous dacryocystitis).

Within H04.3 (acute and unspecified inflammation of lacrimal passages), H04.31 is specifically for Phlegmonous dacryocystitis. Related codes cover unspecified dacryocystitis (H04.30), acute dacryocystitis (H04.32) and acute lacrimal canaliculitis (H04.33).

To report this condition, pick the subcode that matches the documentation: H04.311 (of right lacrimal passage), H04.312 (of left lacrimal passage), H04.313 (of bilateral lacrimal passages) and H04.319 (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 Phlegmonous dacryocystitis ICD-10 codes

What is the ICD-10 code for Phlegmonous dacryocystitis?

H04.31 — Phlegmonous dacryocystitis (a header code; report a more specific subcode).

Is H04.31 billable?

No. H04.31 is a header code. Report one of its more specific subcodes instead.