H18.023 Argentous corneal deposits, bilateral

ICD-10-CM Code H18.023: Argentous corneal deposits, bilateral

ICD-10-CM code H18.023 identifies argentous corneal deposits when they occur bilaterally. This diagnostic concept is listed within official coding structures for corneal disorders and appears in payer-related coding materials. The available public sources confirm the code's official label and its distinct bilateral laterality, but they do not provide clinical details or coverage guarantees. 1 2 3

Plain-language overview

Code H18.023 represents the diagnosis of argentous corneal deposits that are present bilaterally. This provides a specific way to document this particular type of corneal deposit when it affects both eyes. 1 3

What this code represents

The official display label for H18.023 is argentous corneal deposits, bilateral. This distinguishes it from codes for the right eye, left eye, or unspecified eye. 1 2 3

Coding details

Within the tabular list of diseases, H18.023 is grouped under other disorders of cornea. Related codes in this structure include unspecified corneal deposits and anterior corneal pigmentations. 1 3

The coding structure provides distinct codes for argentous corneal deposits based on laterality. H18.021 is for the right eye, H18.022 is for the left eye, and H18.029 is for an unspecified eye. 1 2 3

What the sources add

The CMS tabular list and the Unbound Medicine code tree both establish the hierarchical placement of H18.023 among bilateral corneal deposit codes. The CMS visual fields article includes H18.023 in a list of diagnoses, while the other sources outline the broader code tree. 1 2 3

Coverage and utilization context

Code H18.023 appears in a CMS article titled Billing and Coding: Visual Fields. The presence of this code in the article does not establish any rules regarding payer coverage guarantees for services. 2

Documentation considerations

The available sources confirm that H18.023 is designated for bilateral argentous corneal deposits. The provided excerpts do not specify the clinical documentation elements needed to support the assignment of this code. 1 3

Sources

1. ICD-10-CM TABULAR LIST of DISEASES and INJURIES ... — cms.gov; accessed 2026-07-26.
2. Article - Billing and Coding: Visual Fields (A57483) — cms.gov; accessed 2026-07-26.
3. ICD-10-CM 2024 | H18 - Other disorders of cornea — unboundmedicine.com; accessed 2026-07-26.