Is H00 a billable ICD-10-CM code?

No. H00 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does H00 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).

H00

H00 — Hordeolum and chalazion

Non-billable headerICD-10-CM

H00 is a non-billable header ICD-10-CM code for hordeolum and chalazion. It cannot be billed on its own: choose one of the more specific child codes below.

Risk adjustment

H00 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 H00

2 child codes. Green means billable.

H00.0Hordeolum (externum) (internum) of eyelid
H00.1Chalazion

Questions about H00

Is H00 a billable ICD-10-CM code?: No. H00 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does H00 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).