H55.0
H55.0 — Nystagmus
Non-billable headerICD-10-CM
H55.0 is a non-billable header ICD-10-CM code for nystagmus. It cannot be billed on its own: choose one of the more specific child codes below.
Other codes that can never be billed with H55.0
These codes carry an Excludes1 note pointing at H55.0. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading H55.0 alone.
- Q15Other congenital malformations of eye
Risk adjustment
H55.0 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 H55.0
6 child codes. Green means billable.
Related codes at this level
Codes that share H55. If H55.0 is not quite right, the correct code is usually one of these.
Questions about H55.0
- Is H55.0 a billable ICD-10-CM code?
- No. H55.0 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does H55.0 sit in the tabular list?
- Diseases of the eye and adnexa (H00-H59), in the block Other disorders of eye and adnexa (H55-H57).