H01.021 — Squamous blepharitis right upper eyelid
H01.021 is a billable, specific ICD-10-CM code for squamous blepharitis right upper eyelid. It is valid for submission on a claim.
Risk adjustment
H01.021 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
H01.021 is named in 4 Medicare coverage policies — 4 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A57025Billing and Coding: Blepharoplasty, Blepharoptosis Repair and Surgical Procedures of the Brow
- A57068Billing and Coding: Ocular Photography - External
- A57618Billing and Coding: Blepharoplasty, Blepharoptosis Repair and Surgical Procedures of the Brow
- A57637Billing and Coding: Visual Field Examination
How H01.021 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to H01.021.
- Blepharitis›squamous›right›upper
Related codes at this level
Codes that share H01.02. If H01.021 is not quite right, the correct code is usually one of these.
- H01.022Squamous blepharitis right lower eyelid
- H01.023Squamous blepharitis right eye, unspecified eyelid
- H01.024Squamous blepharitis left upper eyelid
- H01.025Squamous blepharitis left lower eyelid
- H01.026Squamous blepharitis left eye, unspecified eyelid
- H01.029Squamous blepharitis unspecified eye, unspecified eyelid
- H01.02ASquamous blepharitis right eye, upper and lower eyelids
- H01.02BSquamous blepharitis left eye, upper and lower eyelids
Questions about H01.021
- Is H01.021 a billable ICD-10-CM code?
- Yes. H01.021 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does H01.021 sit in the tabular list?
- Diseases of the eye and adnexa (H00-H59), in the block Disorders of eyelid, lacrimal system and orbit (H00-H05).