H46-H47Not billable, use a more specific code below
Disorders of optic nerve and visual pathways (H46-H47)
chapter 7: Diseases of the Eye and Adnexa
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Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Covers coding glaucoma by type, eye, and stage, including bilateral cases and stage changes, and coding blindness or low vision when the impairment category is undocumented.
All codes under H46-H47
H46-H47 can't be used on a claim. Pick a billable code below; grey headings group them.
- H46Optic neuritis
- H46.0Optic papillitis
- H46.00Optic papillitis, unspecified eye
- H46.01Optic papillitis, right eye
- H46.02Optic papillitis, left eye
- H46.03Optic papillitis, bilateral
- H46.1Retrobulbar neuritis
- H46.10Retrobulbar neuritis, unspecified eye
- H46.11Retrobulbar neuritis, right eye
- H46.12Retrobulbar neuritis, left eye
- H46.13Retrobulbar neuritis, bilateral
- H46.2Nutritional optic neuropathy
- H46.3Toxic optic neuropathy
- H46.8Other optic neuritis
- H46.9Unspecified optic neuritis
- H47Other disorders of optic [2nd] nerve and visual pathways
- H47.0Disorders of optic nerve, not elsewhere classified
- H47.01Ischemic optic neuropathy
- H47.011Ischemic optic neuropathy, right eye
- H47.012Ischemic optic neuropathy, left eye
- H47.013Ischemic optic neuropathy, bilateral
- H47.019Ischemic optic neuropathy, unspecified eye
- H47.02Hemorrhage in optic nerve sheath
- H47.021Hemorrhage in optic nerve sheath, right eye
- H47.022Hemorrhage in optic nerve sheath, left eye
- H47.023Hemorrhage in optic nerve sheath, bilateral
- H47.029Hemorrhage in optic nerve sheath, unspecified eye
- H47.03Optic nerve hypoplasia
- H47.031Optic nerve hypoplasia, right eye
- H47.032Optic nerve hypoplasia, left eye
- H47.033Optic nerve hypoplasia, bilateral
- H47.039Optic nerve hypoplasia, unspecified eye
- H47.09Other disorders of optic nerve, not elsewhere classified
- H47.091Other disorders of optic nerve, not elsewhere classified, right eye
- H47.092Other disorders of optic nerve, not elsewhere classified, left eye
- H47.093Other disorders of optic nerve, not elsewhere classified, bilateral
- H47.099Other disorders of optic nerve, not elsewhere classified, unspecified eye
- H47.1Papilledema
- H47.10Unspecified papilledema
- H47.11Papilledema associated with increased intracranial pressure
- H47.12Papilledema associated with decreased ocular pressure
- H47.13Papilledema associated with retinal disorder
- H47.14Foster-Kennedy syndrome
- H47.141Foster-Kennedy syndrome, right eye
- H47.142Foster-Kennedy syndrome, left eye
- H47.143Foster-Kennedy syndrome, bilateral
- H47.149Foster-Kennedy syndrome, unspecified eye
- H47.2Optic atrophy
- H47.20Unspecified optic atrophy
- H47.21Primary optic atrophy
- H47.211Primary optic atrophy, right eye
- H47.212Primary optic atrophy, left eye
- H47.213Primary optic atrophy, bilateral
- H47.219Primary optic atrophy, unspecified eye
- H47.22Hereditary optic atrophy
- H47.23Glaucomatous optic atrophy
- H47.231Glaucomatous optic atrophy, right eye
- H47.232Glaucomatous optic atrophy, left eye
- H47.233Glaucomatous optic atrophy, bilateral
- H47.239Glaucomatous optic atrophy, unspecified eye
- H47.29Other optic atrophy
- H47.291Other optic atrophy, right eye
- H47.292Other optic atrophy, left eye
- H47.293Other optic atrophy, bilateral
- H47.299Other optic atrophy, unspecified eye
- H47.3Other disorders of optic disc
- H47.31Coloboma of optic disc
- H47.311Coloboma of optic disc, right eye
- H47.312Coloboma of optic disc, left eye
- H47.313Coloboma of optic disc, bilateral
- H47.319Coloboma of optic disc, unspecified eye
- H47.32Drusen of optic disc
- H47.321Drusen of optic disc, right eye
- H47.322Drusen of optic disc, left eye
- H47.323Drusen of optic disc, bilateral
- H47.329Drusen of optic disc, unspecified eye
- H47.33Pseudopapilledema of optic disc
- H47.331Pseudopapilledema of optic disc, right eye
- H47.332Pseudopapilledema of optic disc, left eye
- H47.333Pseudopapilledema of optic disc, bilateral
- H47.339Pseudopapilledema of optic disc, unspecified eye
- H47.39Other disorders of optic disc
- H47.391Other disorders of optic disc, right eye
- H47.392Other disorders of optic disc, left eye
- H47.393Other disorders of optic disc, bilateral
- H47.399Other disorders of optic disc, unspecified eye
- H47.4Disorders of optic chiasm
- H47.41Disorders of optic chiasm in (due to) inflammatory disorders
- H47.42Disorders of optic chiasm in (due to) neoplasm
- H47.43Disorders of optic chiasm in (due to) vascular disorders
- H47.49Disorders of optic chiasm in (due to) other disorders
- H47.5Disorders of other visual pathways
- H47.51Disorders of visual pathways in (due to) inflammatory disorders
- H47.511Disorders of visual pathways in (due to) inflammatory disorders, right side
- H47.512Disorders of visual pathways in (due to) inflammatory disorders, left side
- H47.519Disorders of visual pathways in (due to) inflammatory disorders, unspecified side
- H47.52Disorders of visual pathways in (due to) neoplasm
- H47.521Disorders of visual pathways in (due to) neoplasm, right side
- H47.522Disorders of visual pathways in (due to) neoplasm, left side
- H47.529Disorders of visual pathways in (due to) neoplasm, unspecified side
- H47.53Disorders of visual pathways in (due to) vascular disorders
- H47.531Disorders of visual pathways in (due to) vascular disorders, right side
- H47.532Disorders of visual pathways in (due to) vascular disorders, left side
- H47.539Disorders of visual pathways in (due to) vascular disorders, unspecified side
- H47.6Disorders of visual cortex
- H47.61Cortical blindness
- H47.611Cortical blindness, right side of brain
- H47.612Cortical blindness, left side of brain
- H47.619Cortical blindness, unspecified side of brain
- H47.62Disorders of visual cortex in (due to) inflammatory disorders
- H47.621Disorders of visual cortex in (due to) inflammatory disorders, right side of brain
- H47.622Disorders of visual cortex in (due to) inflammatory disorders, left side of brain
- H47.629Disorders of visual cortex in (due to) inflammatory disorders, unspecified side of brain
- H47.63Disorders of visual cortex in (due to) neoplasm
- H47.631Disorders of visual cortex in (due to) neoplasm, right side of brain
- H47.632Disorders of visual cortex in (due to) neoplasm, left side of brain
- H47.639Disorders of visual cortex in (due to) neoplasm, unspecified side of brain
- H47.64Disorders of visual cortex in (due to) vascular disorders
- H47.641Disorders of visual cortex in (due to) vascular disorders, right side of brain
- H47.642Disorders of visual cortex in (due to) vascular disorders, left side of brain
- H47.649Disorders of visual cortex in (due to) vascular disorders, unspecified side of brain
- H47.9Unspecified disorder of visual pathways
H46-H47 MS-DRGs
This code does not group to an MS-DRG as a principal diagnosis.
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Optic Nerve Disorders
The optic nerve is a bundle of more than 1 million nerve fibers that carry visual messages. You have one connecting the back of each eye (your retina) to your brain. Damage to an optic nerve can cause vision loss. The type of vision loss and how severe it is depends on where the damage occurs. It may affect one or both eyes.
Read more about optic nerve disorders on MedlinePlus