H40.5 — Glaucoma secondary to other eye disorders
Is H40.5 billable?
No — H40.5 is a non-billable header code. H40.5 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 20 billable codes beneath H40.5.
Billable codes under this header
- H40.50X0Glaucoma secondary to other eye disorders, unspecified eye, stage unspecified
- H40.50X1Glaucoma secondary to other eye disorders, unspecified eye, mild stage
- H40.50X2Glaucoma secondary to other eye disorders, unspecified eye, moderate stage
- H40.50X3Glaucoma secondary to other eye disorders, unspecified eye, severe stage
- H40.50X4Glaucoma secondary to other eye disorders, unspecified eye, indeterminate stage
- H40.51X0Glaucoma secondary to other eye disorders, right eye, stage unspecified
- H40.51X1Glaucoma secondary to other eye disorders, right eye, mild stage
- H40.51X2Glaucoma secondary to other eye disorders, right eye, moderate stage
- H40.51X3Glaucoma secondary to other eye disorders, right eye, severe stage
- H40.51X4Glaucoma secondary to other eye disorders, right eye, indeterminate stage
- H40.52X0Glaucoma secondary to other eye disorders, left eye, stage unspecified
- H40.52X1Glaucoma secondary to other eye disorders, left eye, mild stage
- H40.52X2Glaucoma secondary to other eye disorders, left eye, moderate stage
- H40.52X3Glaucoma secondary to other eye disorders, left eye, severe stage
- H40.52X4Glaucoma secondary to other eye disorders, left eye, indeterminate stage
- H40.53X0Glaucoma secondary to other eye disorders, bilateral, stage unspecified
- H40.53X1Glaucoma secondary to other eye disorders, bilateral, mild stage
- H40.53X2Glaucoma secondary to other eye disorders, bilateral, moderate stage
- H40.53X3Glaucoma secondary to other eye disorders, bilateral, severe stage
- H40.53X4Glaucoma secondary to other eye disorders, bilateral, indeterminate stage
H40.5 at a glance
| Code | H40.5 |
|---|---|
| Description | Glaucoma secondary to other eye disorders |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is H40.5 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to H40.5. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Glaucoma › secondary
Code also
Two codes may be needed to describe the condition fully. Whether H40.5 is sequenced first depends on the reason for the encounter.
- underlying eye disorder
Excludes1 — never code together — inherited from H40
The conditions below can never be reported together with H40.5 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes2 — not included here — inherited from Chapter 7
The conditions below are not part of H40.5, but a patient may have both at the same time. When documentation supports it, H40.5 and the excluded code may both be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- diabetes mellitus related eye conditions (E09.3-, E10.3-, E11.3-, E13.3-)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury (trauma) of eye and orbit (S05.-)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- syphilis related eye disorders (A50.01, A50.3-, A51.43, A52.71)
What codes fall under H40.5? (4)
How long has H40.5 existed?
H40.5 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which conditions are coded to H40.5?
What other codes are in the H40 family? (8)
- H40.0Glaucoma suspectnot billable
- H40.1Open-angle glaucomanot billable
- H40.2Primary angle-closure glaucomanot billable
- H40.3Glaucoma secondary to eye traumanot billable
- H40.4Glaucoma secondary to eye inflammationnot billable
- H40.6Glaucoma secondary to drugsnot billable
- H40.8Other glaucomanot billable
- H40.9Unspecified glaucoma