H18.23
Header — not billableSecondary corneal edema
The ICD-10 code for secondary corneal edema is H18.23.
H18.23 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.
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.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- H18.20Unspecified corneal edema
- H18.21Corneal edema secondary to contact lensnon-billable header
- H18.22Idiopathic corneal edemanon-billable header
- H18.23Secondary corneal edemanon-billable header