Is H46.1 a billable ICD-10-CM code?

No. H46.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does H46.1 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).

What cannot be coded together with H46.1?

H46.1 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter.

H46.1

H46.1 — Retrobulbar neuritis

Non-billable headerICD-10-CM

H46.1 is a non-billable header ICD-10-CM code for retrobulbar neuritis. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

syphilitic retrobulbar neuritis (A52.15)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Retrobulbar neuritis NOS

Excludes2 inherited from the categories above H46.1

Also inherited, and the opposite of Excludes1: these conditions are not part of H46.1, but a patient can have both, so you may code both.

Written on H46 — Optic neuritis

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

Risk adjustment

H46.1 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 history

H46.1 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Code to one of these instead H46.1

4 child codes. Green means billable.

Related codes at this level

Codes that share H46. If H46.1 is not quite right, the correct code is usually one of these.

Questions about H46.1

Is H46.1 a billable ICD-10-CM code?: No. H46.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does H46.1 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).
What cannot be coded together with H46.1?: H46.1 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter.