NPI Atlas

H18.231 – Secondary corneal edema, right eye

ICD-10-CM 2027 diagnosis code · Disorders of sclera, cornea, iris and ciliary body

Billable code

ICD-10-CM code H18.231

Code: H18.231 (claims format: H18231)
Description: Secondary corneal edema, right eye
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 7. Diseases of the eye and adnexa (H00-H59)
Block: H15-H22 Disorders of sclera, cornea, iris and ciliary body
Parent codes: H18 › H18.2 › H18.23

Related codes in H18.23

H18.232 – Secondary corneal edema, left eyeBillable
H18.233 – Secondary corneal edema, bilateralBillable
H18.239 – Secondary corneal edema, unspecified eyeBillable

Frequently asked questions

What is ICD-10 code H18.231?

H18.231 is the ICD-10-CM code for secondary corneal edema, right eye, in the block H15-H22 (Disorders of sclera, cornea, iris and ciliary body).

Is H18.231 a billable code?

Yes. H18.231 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does H18.231 belong to?

It belongs to category H18 – Other disorders of cornea.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.