H40.20
H40.20: Unspecified primary angle-closure glaucoma
Non-billable headerICD-10-CM
H40.20 is a non-billable header ICD-10-CM code for unspecified primary angle-closure glaucoma. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
One of the following 7th characters is to be assigned to code H40.20 to designate the stage of glaucoma
- 0
- stage unspecified
- 1
- mild stage
- 2
- moderate stage
- 3
- severe stage
- 4
- indeterminate stage
Excludes1 inherited from the categories above H40.20
A category’s note binds every code beneath it.
Written on H40.2: Primary angle-closure glaucoma
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 H40.20
5 child codes. Green means billable.
- H40.20X0Unspecified primary angle-closure glaucoma, stage unspecified
- H40.20X1Unspecified primary angle-closure glaucoma, mild stage
- H40.20X2Unspecified primary angle-closure glaucoma, moderate stage
- H40.20X3Unspecified primary angle-closure glaucoma, severe stage
- H40.20X4Unspecified primary angle-closure glaucoma, indeterminate stage