H40.0 — Glaucoma suspect
Is H40.0 billable?
No — H40.0 is a non-billable header code. H40.0 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 28 billable codes beneath H40.0.
Billable codes under this header
- H40.001Preglaucoma, unspecified, right eye
- H40.002Preglaucoma, unspecified, left eye
- H40.003Preglaucoma, unspecified, bilateral
- H40.009Preglaucoma, unspecified, unspecified eye
- H40.011Open angle with borderline findings, low risk, right eye
- H40.012Open angle with borderline findings, low risk, left eye
- H40.013Open angle with borderline findings, low risk, bilateral
- H40.019Open angle with borderline findings, low risk, unspecified eye
- H40.021Open angle with borderline findings, high risk, right eye
- H40.022Open angle with borderline findings, high risk, left eye
- H40.023Open angle with borderline findings, high risk, bilateral
- H40.029Open angle with borderline findings, high risk, unspecified eye
- H40.031Anatomical narrow angle, right eye
- H40.032Anatomical narrow angle, left eye
- H40.033Anatomical narrow angle, bilateral
- H40.039Anatomical narrow angle, unspecified eye
- H40.041Steroid responder, right eye
- H40.042Steroid responder, left eye
- H40.043Steroid responder, bilateral
- H40.049Steroid responder, unspecified eye
- H40.051Ocular hypertension, right eye
- H40.052Ocular hypertension, left eye
- H40.053Ocular hypertension, bilateral
- H40.059Ocular hypertension, unspecified eye
- H40.061Primary angle closure without glaucoma damage, right eye
- H40.062Primary angle closure without glaucoma damage, left eye
- H40.063Primary angle closure without glaucoma damage, bilateral
- H40.069Primary angle closure without glaucoma damage, unspecified eye
H40.0 at a glance
| Code | H40.0 |
|---|---|
| Description | Glaucoma suspect |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together — inherited from H40
The conditions below can never be reported together with H40.0 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 H40.0, but a patient may have both at the same time. When documentation supports it, H40.0 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 H40.0? (7)
- H40.00Preglaucoma, unspecifiednot billable
- H40.01Open angle with borderline findings, low risknot billable
- H40.02Open angle with borderline findings, high risknot billable
- H40.03Anatomical narrow anglenot billable
- H40.04Steroid respondernot billable
- H40.05Ocular hypertensionnot billable
- H40.06Primary angle closure without glaucoma damagenot billable
How long has H40.0 existed?
H40.0 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.
What other codes are in the H40 family? (8)
- 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
- H40.5Glaucoma secondary to other eye disordersnot billable
- H40.6Glaucoma secondary to drugsnot billable
- H40.8Other glaucomanot billable
- H40.9Unspecified glaucoma