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
Risk adjustment
H40.20 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
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
Related codes at this level
Codes that share H40.2. If H40.20 is not quite right, the correct code is usually one of these.
Questions about H40.20
- Is H40.20 a billable ICD-10-CM code?
- No. H40.20 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does H40.20 sit in the tabular list?
- Diseases of the eye and adnexa (H00-H59), in the block Glaucoma (H40-H42).