H40.06
⚠ Non-billable (Header)Primary angle closure without glaucoma damage
Diseases of the eye and adnexa (H00-H59)
⚠️ This is a category header code — not billable. Use a more specific child code below.
❌ 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)
Child Codes (4)
Clinical Description
ICD-10-CM code H40.06 represents primary angle closure without glaucoma damage. This code falls under the Diseases of the eye and adnexa (H00-H59) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.
This is a 6-character code at the 5th level of specificity. There are 4 more specific child codes under H40.06. Coders should note that H40.06 has 3 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.
Frequently Asked Questions
What is ICD-10 code H40.06?
ICD-10-CM code H40.06 is "Primary angle closure without glaucoma damage". It belongs to the category: Diseases of the eye and adnexa (H00-H59).
Is H40.06 a billable ICD-10 code?
No, H40.06 is a non-billable header code. A more specific child code must be used for billing.
What codes are excluded with H40.06?
H40.06 has 3 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.
Related Codes in H40.0
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)