MCMedicalCodingSoftware
H40.01

H40.01: Open angle with borderline findings, low risk

Non-billable headerICD-10-CM

H40.01 is a non-billable header ICD-10-CM code for open angle with borderline findings, low risk. It cannot be billed on its own: choose one of the more specific child codes below.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Open angle, low risk

Excludes1 inherited from the categories above H40.01

A category’s note binds every code beneath it.

Written on H40: Glaucoma

  • absolute glaucoma (H44.51-)
  • congenital glaucoma (Q15.0)
  • traumatic glaucoma due to birth injury (P15.3)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead H40.01

4 child codes. Green means billable.

Other codes under H40.0

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.