H16.4 – Corneal neovascularization
ICD-10-CM 2027 diagnosis code · Disorders of sclera, cornea, iris and ciliary body
ICD-10-CM code
H16.4
- Code
H16.4(claims format:H164)- Description
- Corneal neovascularization
- Billable
- No – use a more specific code below
- 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
- H16
Billable codes under H16.4
H16.4 is a header code and cannot be used on claims. Choose the most specific code:
- H16.40 – Unspecified corneal neovascularizationHeader (more codes below)
- H16.41 – Ghost vessels (corneal)Header (more codes below)
- H16.42 – Pannus (corneal)Header (more codes below)
- H16.43 – Localized vascularization of corneaHeader (more codes below)
- H16.44 – Deep vascularization of corneaHeader (more codes below)
Related codes in H16
Frequently asked questions
What is ICD-10 code H16.4?
H16.4 is the ICD-10-CM code for corneal neovascularization, in the block H15-H22 (Disorders of sclera, cornea, iris and ciliary body).
Is H16.4 a billable code?
No. H16.4 is a header code with more specific child codes; report one of the billable codes listed above.
What category does H16.4 belong to?
It belongs to category H16 – Keratitis.
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.