H04.301 (Unspecified dacryocystitis of right lacrimal passage) compared with H04.309 (Unspecified dacryocystitis of unspecified lacrimal passage), from the official CMS tabular data. H04.301 and H04.309 code the same condition on opposite sides.
Same condition; these differ only in which side is documented.
These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.
Source: ICD-10-CM tabular list (laterality variant derived from the code title)
Same condition, opposite side. H04.301 and H04.309 name the same condition on opposite sides of the body.
Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.
| H04.301Unspecified dacryocystitis of right lacrimal passage | H04.309Unspecified dacryocystitis of unspecified lacrimal passage | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | H00-H59 — Diseases of the Eye and Adnexa (H00-H59) | H00-H59 — Diseases of the Eye and Adnexa (H00-H59) |
| Definition | Unspecified dacryocystitis of right lacrimal passage is a billable ICD-10-CM diagnosis code (H04.301). | Unspecified dacryocystitis of unspecified lacrimal passage is a billable ICD-10-CM diagnosis code (H04.309). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources