H40.01 ICD-10-CM Code: Open angle with borderline findings, low risk

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Official description

H40.01

Open angle with borderline findings, low risk

ICD-10-CM diagnosis code · United States clinical modification

Where H40.01 sits

  1. 1

    Chapter 7

    Diseases of the eye and adnexa (H00-H59)

  2. 2

    Section

    Glaucoma (H40-H42)

  3. 3

    Category H40

    Glaucoma

  4. 4

    Subcategory H40.0

    Glaucoma suspect

  5. 5

    Code H40.01

    Open angle with borderline findings, low risk

Codes under H40.01

H40.01 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Notes for this code

Inclusion terms

  • Open angle, low risk

Code first

No “code first” instruction is listed for H40.01.

Use additional code

No “use additional code” instruction is listed for H40.01.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for H40.01.

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for H40.01.

Source and release

Data release
U.S. ICD-10-CM · FY 2027
Effective date
Oct 1, 2026

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 H40.01 mean?

H40.01 is the FY 2027 U.S. ICD-10-CM code for “Open angle with borderline findings, low risk.”

Is H40.01 a billable or specific ICD-10-CM code?

No. H40.01 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 H40.01 located in ICD-10-CM?

H40.01 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 H40.0, Glaucoma suspect.

What coding notes are listed for H40.01?

Its listed inclusion terms are Open angle, low risk. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.