H47.393 Other disorders of optic disc, bilateral

ICD-10-CM Code H47.393: Other Disorders of Optic Disc, Bilateral

ICD-10-CM code H47.393 identifies bilateral other disorders of the optic disc. This specific, billable diagnosis falls under eye and adnexa diseases. Optic disc abnormalities may signal potential vision loss or neurological issues, making clinical evaluation and ocular imaging vital to distinguish true disc edema from pseudopapilledema. This reference summarizes coding and clinical context from public sources. 1 2 6

Plain-language overview

Optic disc edema involves swelling of the nerve fiber layer at the optic nerve head due to an optic neuropathy of any etiology, whereas papilledema refers to optic disc edema caused by raised intracranial pressure. 2

Optic disc swelling concerns neuro-ophthalmologists, general ophthalmologists, neurologists, and emergency department providers because of the neurological and systemic implications of optic disc edema. 1

What this code represents

ICD-10-CM code H47.393 represents "Other disorders of optic disc, bilateral" and is presented as a billable, specific code with no child codes in the referenced April 2026 data. 6

Coding details

Code H47.393 is listed in Chapter 7, Diseases of the eye and adnexa (H00-H59), within Disorders of optic nerve and visual pathways (H46-H47), under category H47 and subcategory H47.39. 6

The H47.393 code denotes a bilateral condition, distinguishing it from H47.391 for the right eye and H47.392 for the left eye. 4

Documentation considerations

The referenced ICD-10-CM record for H47.393 lists no "code first" instruction, no "use additional code" instruction, and no inclusion terms. 6

Multimodal ocular imaging includes ocular fundus photography, ocular ultrasound, and optical coherence tomography, which are utilized to diagnose, grade, and follow up papilledema and distinguish true disc edema from pseudo-disc edema. 1

What the sources add

The CMS billing and coding article places H47.393 within a sequence of other optic disc disorders (H47.391 through H47.393), while the Vero reference provides its hierarchical chapter placement and confirms its billable specificity. 5 6

Clinical literature distinguishes optic disc edema from pseudopapilledema, noting that optic disc drusen are extracellular deposits of calcium and hyaline that can create the appearance of pseudopapilledema. 2

Sources

1. Diagnosis of Optic Disc Oedema: Fundus Features, Ocular Imaging Findings, and Artificial Intelligence — pmc.ncbi.nlm.nih.gov; accessed 2026-07-25.
2. Bookshelf — ncbi.nlm.nih.gov; accessed 2026-07-25.
3. Optic Nerve Disorders: MedlinePlus — medlineplus.gov; accessed 2026-07-25.
4. EVS Explore — evsexplore.semantics.cancer.gov; accessed 2026-07-25.
5. Article - Billing and Coding: Visual Electrophysiology Testing (A57060) — cms.gov; accessed 2026-07-25.
6. ICD-10-CM Code H47.393 | Vero — veroscribe.com; accessed 2026-07-25.