Is ICD-10-CM code H46 billable?

No, H46 (Optic neuritis) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code H46 belong to?

H46 belongs to Chapter 7 of the ICD-10-CM tabular list: H00–H59 (Diseases of the Eye and Adnexa).

H46

Non-Billable

ChapterH00–H59

Rankcategory

Description

Optic neuritis

About ICD-10-CM code H46

Optic neuritis is classified in ICD-10-CM as code H46, part of H00-H59 Diseases of the Eye and Adnexa, within Disorders of optic nerve and visual pathways (H46-H47). Its status is non-billable, meaning reporting it requires a deeper, more specific code.

Use a more specific code (4 billable, 2 non-billable)

H46.0Optic papillitishas subcodes H46.1Retrobulbar neuritishas subcodes H46.2Nutritional optic neuropathy H46.3Toxic optic neuropathy H46.8Other optic neuritis H46.9Unspecified optic neuritis

Metadata & Insights

•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. Code separately if applicable.)

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. Code separately if applicable.)

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

Clinical Hierarchy

BillableHas subcodes

CH7Diseases of the eye and adnexa (H00-H59)

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

H46Optic neuritisNot billable

H46.0Optic papillitisSubcodes

H46.1Retrobulbar neuritisSubcodes

H46.2Nutritional optic neuropathyBillable

H46.3Toxic optic neuropathyBillable

H46.8Other optic neuritisBillable

H46.9Unspecified optic neuritisBillable

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

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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