H16.399 – Other interstitial and deep keratitis, unspecified eye
ICD-10-CM 2027 diagnosis code · Disorders of sclera, cornea, iris and ciliary body
ICD-10-CM code
H16.399
- Code
H16.399(claims format:H16399)- Description
- Other interstitial and deep keratitis, unspecified 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
- H16 › H16.3 › H16.39
Index terms for H16.399
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in H16.39
Frequently asked questions
What is ICD-10 code H16.399?
H16.399 is the ICD-10-CM code for other interstitial and deep keratitis, unspecified eye, in the block H15-H22 (Disorders of sclera, cornea, iris and ciliary body).
Is H16.399 a billable code?
Yes. H16.399 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does H16.399 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.