H46.1

Non-Billable

ChapterH00–H59

Ranksubcategory

Official Description

Retrobulbar neuritis

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Non-billable category (requires more specific sub-code).
•Chapter 7: Diseases of the Eye and Adnexa (H00-H59).

Instructional Notes

Includes

Retrobulbar neuritis NOS

Excludes1(Not coded here)

syphilitic retrobulbar neuritis (A52.15)

General instructions are available for the parent sections:

View CH7 Notes View H46 Notes

Clinical Hierarchy

CH7Diseases of the eye and adnexa (H00-H59)

H46-H47Disorders of optic nerve and visual pathways (H46-H47)

H46Optic neuritis

H46.1Retrobulbar neuritis

H46.10Retrobulbar neuritis, unspecified eye

H46.11Retrobulbar neuritis, right eye

H46.12Retrobulbar neuritis, left eye

H46.13Retrobulbar neuritis, bilateral

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to H46.1:

categoryH46

Optic neuritis

View context instructions

chapterCH7

Diseases of the eye and adnexa (H00-H59)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to H46.1. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

1 raw paths

Neuritis (rheumatoid)1 unique routes

optic (nerve) (hereditary) (sympathetic)

retrobulbar→H46.1

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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