H40.819
✓ BillableGlaucoma with increased episcleral venous pressure, unspecified eye
Diseases of the eye and adnexa (H00-H59)
❌ Excludes1
inheritedRules inherited from parent codes in the hierarchy.
- • absolute glaucoma (H44.51-)
- • congenital glaucoma (Q15.0)
- • traumatic glaucoma due to birth injury (P15.3)
Clinical Description
ICD-10-CM code H40.819 represents glaucoma with increased episcleral venous pressure, unspecified eye. This code falls under the Diseases of the eye and adnexa (H00-H59) classification. It is a billable/specific code valid for HIPAA-covered transactions as of October 1, 2025 (FY2026). This code can be used to indicate a diagnosis for reimbursement purposes on insurance claims.
This is a 7-character code at the 6th level of specificity. This is the most specific code available in this subcategory. Coders should note that H40.819 has 3 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.
Frequently Asked Questions
What is ICD-10 code H40.819?
ICD-10-CM code H40.819 is "Glaucoma with increased episcleral venous pressure, unspecified eye". It belongs to the category: Diseases of the eye and adnexa (H00-H59).
Is H40.819 a billable ICD-10 code?
Yes, H40.819 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
What codes are excluded with H40.819?
H40.819 has 3 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.
Related Codes in H40.81
Other codes in the same category that may be relevant for differential coding:
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Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)