Is H46 a billable ICD-10-CM code?

No. H46 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does H46 sit in the tabular list?

Diseases of the eye and adnexa (H00-H59), in the block Disorders of optic nerve and visual pathways (H46-H47).

H46

H46 — Optic neuritis

Non-billable headerICD-10-CM

H46 is a non-billable header ICD-10-CM code for optic neuritis. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes2 — not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

ischemic optic neuropathy (H47.01-)
neuromyelitis optica [Devic] (G36.0)

Risk adjustment

H46 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 H46

6 child codes. Green means billable.

Questions about H46

Is H46 a billable ICD-10-CM code?: No. H46 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does H46 sit in the tabular list?: Diseases of the eye and adnexa (H00-H59), in the block Disorders of optic nerve and visual pathways (H46-H47).