H16 ICD-10-CM Code: Keratitis
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
H16Keratitis
ICD-10-CM diagnosis code · United States clinical modification
Where H16 sits
- 1
Chapter 7
Diseases of the eye and adnexa (H00-H59)
- 2
Section
Disorders of sclera, cornea, iris and ciliary body (H15-H22)
- 3
Category H16
Keratitis
- 4
Code H16
Keratitis
Codes under H16
H16 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Notes for this code
Inclusion terms
No inclusion terms are listed for H16.
Code first
No “code first” instruction is listed for H16.
Use additional code
No “use additional code” instruction is listed for H16.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for H16.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for H16.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code H16 mean?
H16 is the FY 2027 U.S. ICD-10-CM code for “Keratitis.”
Is H16 a billable or specific ICD-10-CM code?
No. H16 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is H16 located in ICD-10-CM?
H16 is listed in Chapter 7, Diseases of the eye and adnexa (H00-H59), within Disorders of sclera, cornea, iris and ciliary body (H15-H22) (H15–H22), under category H16, Keratitis.
What coding notes are listed for H16?
No inclusion terms are listed for H16 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.