H40.30X1 (Glaucoma secondary to eye trauma, unspecified eye, mild stage) compared with H44.51 (Absolute glaucoma), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Not coded here — these two are mutually exclusive.
“absolute glaucoma (H44.51-)”
An Excludes1 note means the two conditions cannot occur together, so the pair should not be reported for the same encounter. The sole exception is when the conditions are documented as unrelated to each other.
Source: CMS ICD-10-CM tabular instructional notes; ICD-10-CM Official Guidelines, Section I.A.12.a
No — do not report together. H40.30X1 carries an Excludes1 note covering H44.51: “absolute glaucoma (H44.51-)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
| H40.30X1Glaucoma secondary to eye trauma, unspecified eye, mild stage | H44.51Absolute glaucoma | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | H00-H59 — Diseases of the Eye and Adnexa (H00-H59) | H00-H59 — Diseases of the Eye and Adnexa (H00-H59) |
| Definition | Glaucoma secondary to eye trauma, unspecified eye, mild stage is a billable ICD-10-CM diagnosis code (H40.301). | Absolute glaucoma is a non-billable ICD-10-CM category code (H44.51). |
| 7th character | One of the following 7th characters is to be assigned to each code in subcategory H40.3 to designate the stage of glaucoma | — |
| Includes | — | disorders affecting multiple structures of eye |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources