H04 vs Q10.6
H04 (Disorders of lacrimal system) compared with Q10.6 (Other congenital malformations of lacrimal apparatus), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. H04 carries an Excludes1 note covering Q10.6: “congenital malformations of lacrimal system (Q10.4-Q10.6)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| H04Disorders of lacrimal system | Q10.6Other congenital malformations of lacrimal apparatus | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | H00-H59 — Diseases of the Eye and Adnexa (H00-H59) | Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99) |
| Definition | Disorders of lacrimal system is a non-billable ICD-10-CM category code (H04). | Other congenital malformations of lacrimal apparatus is a billable ICD-10-CM diagnosis code (Q10.6). |
| Includes | — | Congenital malformation of lacrimal apparatus NOS |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources