H40.42
H40.42: Glaucoma secondary to eye inflammation, left eye
Non-billable headerICD-10-CMleft
H40.42 is a non-billable header ICD-10-CM code for glaucoma secondary to eye inflammation, left eye. 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 each code in subcategory H40.4 to designate the stage of glaucoma
- 0
- stage unspecified
- 1
- mild stage
- 2
- moderate stage
- 3
- severe stage
- 4
- indeterminate stage
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 H40.42
5 child codes. Green means billable.
- H40.42X0Glaucoma secondary to eye inflammation, left eye, stage unspecified
- H40.42X1Glaucoma secondary to eye inflammation, left eye, mild stage
- H40.42X2Glaucoma secondary to eye inflammation, left eye, moderate stage
- H40.42X3Glaucoma secondary to eye inflammation, left eye, severe stage
- H40.42X4Glaucoma secondary to eye inflammation, left eye, indeterminate stage