H40.11
Header — not billablePrimary open-angle glaucoma
The ICD-10 code for primary open-angle glaucoma is H40.11.
H40.11 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 4 more specific codes below.
Clinical notes
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Chronic simple glaucoma
7th character definitions
These definitions specify what each valid 7th-character value means for codes in this category.
- [object Object]
7th character note
This category requires a 7th character to indicate additional clinical detail (e.g. encounter type: initial, subsequent, sequela). The code is incomplete without it.
- One of the following 7th characters is to be assigned to each code in subcategory H40.11 to designate the stage of glaucoma
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •This category requires a 7th character. Documentation should clearly indicate the episode of care (initial encounter, subsequent encounter, or sequela).
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- H40.10Unspecified open-angle glaucoma
- H40.12Low-tension glaucomanon-billable header
- H40.13Pigmentary glaucomanon-billable header
- H40.14Capsular glaucoma with pseudoexfoliation of lensnon-billable header
- H40.15Residual stage of open-angle glaucomanon-billable header
- H40.11Primary open-angle glaucomanon-billable header