MCMCB Pro
H46.1

H46.1Retrobulbar 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

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 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 an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.