H40.009
H40.009 — Preglaucoma, unspecified, unspecified eye
Billable / specific codeICD-10-CMunspecified
H40.009 is a billable, specific ICD-10-CM code for preglaucoma, unspecified, unspecified eye. It is valid for submission on a claim.
Risk adjustment
H40.009 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.
Medicare coverage
H40.009 is named in 1 Medicare coverage policy — 1 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A57637Billing and Coding: Visual Field Examination
Related codes at this level
Codes that share H40.00. If H40.009 is not quite right, the correct code is usually one of these.
Questions about H40.009
- Is H40.009 a billable ICD-10-CM code?
- Yes. H40.009 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does H40.009 sit in the tabular list?
- Diseases of the eye and adnexa (H00-H59), in the block Glaucoma (H40-H42).