H40.021 ICD-10-CM Code: Open angle with borderline findings, high risk, right eye
H40.021 is the billable ICD-10-CM code for “Open angle with borderline findings, high risk, right eye” in the FY 2027 U.S. code set, effective Oct 1, 2026.
Official description
H40.021Open angle with borderline findings, high risk, right eye
ICD-10-CM diagnosis code · United States clinical modification
Coding tips for H40.021
The same condition on the other side
This code carries the side. Use the one the note supports; codes for an unspecified side should rarely be used.
Where H40.021 sits
- 1
Chapter 7
Diseases of the eye and adnexa (H00-H59)
- 2
Section
Glaucoma (H40-H42)
- 3
Category H40
Glaucoma
- 4
Subcategory H40.02
Open angle with borderline findings, high risk
- 5
Code H40.021
Open angle with borderline findings, high risk, right eye
Notes for this code
Inclusion terms
No inclusion terms are listed for H40.021.
Code first
No “code first” instruction is listed for H40.021.
Use additional code
No “use additional code” instruction is listed for H40.021.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for H40.021.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for H40.021.
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 H40.021 mean?
H40.021 is the FY 2027 U.S. ICD-10-CM code for “Open angle with borderline findings, high risk, right eye.”
Is H40.021 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, H40.021 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is H40.021 located in ICD-10-CM?
H40.021 is listed in Chapter 7, Diseases of the eye and adnexa (H00-H59), within Glaucoma (H40-H42) (H40–H42), under category H40, Glaucoma and subcategory H40.02, Open angle with borderline findings, high risk.
What coding notes are listed for H40.021?
No inclusion terms are listed for H40.021 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.