H46

Non-Billable
ChapterH00–H59
Rankcategory
Official Description

Optic 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).

CH7 Parent Instructions

Excludes2(Not included here)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • diabetes mellitus related eye conditions (E09.3-, E10.3-, E11.3-, E13.3-)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury (trauma) of eye and orbit (S05.-)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • syphilis related eye disorders (A50.01, A50.3-, A51.43, A52.71)

Instructional Notes

Excludes2(Not included here)
  • ischemic optic neuropathy (H47.01-)
  • neuromyelitis optica [Devic] (G36.0)

Clinical Hierarchy

CH7Diseases of the eye and adnexa (H00-H59)
H46-H47Disorders of optic nerve and visual pathways (H46-H47)
H46Optic neuritis
H46.0Optic papillitis
H46.1Retrobulbar neuritis
H46.2Nutritional optic neuropathy
H46.3Toxic optic neuropathy
H46.8Other optic neuritis
H46.9Unspecified optic neuritis

Applicable Ancestor Context

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

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. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

7 raw paths
Neuritis (rheumatoid)5 unique routes
optic (nerve) (hereditary) (sympathetic)→H46(5 variants)
nutritional→H46
retrobulbar→H46
specified type NEC→H46
toxic→H46
Papillitis2 unique routes
Direct index entry→H46
optic→H46

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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