H35.70 Unspecified separation of retinal layers

ICD-10-CM Diagnosis Code H35.70: Unspecified Separation of Retinal Layers

ICD-10-CM code H35.70 designates an unspecified separation of retinal layers, classified as an acquired abnormality. It belongs to the parent category H35.7 and appears in Medicare ophthalmic diagnostic imaging billing guidance. This reference page synthesizes official terminology records and billing articles to explain the code's structure and operational context. 1 3 4

Plain-language overview

The diagnosis concept H35.70 identifies an unspecified separation of retinal layers, representing an acquired abnormality within the ICD-10-CM terminology system. 1

What this code represents

Code H35.70 represents an unspecified separation of retinal layers and is an active terminology concept that has narrower child concepts within the hierarchy. 1

Coding details

Within the ICD-10-CM hierarchy, H35.70 is a child code residing under the parent concept H35.7, which denotes separation of retinal layers, and carries an unspecified descriptor. 1 4

The official descriptor for the ICD10CM code H35.70 is Unspecified separation of retinal layers, a label consistent across terminology versions from 2022 and 2026. 1 4

Documentation considerations

The terminology record for H35.70 specifies an unspecified separation of retinal layers and indicates that narrower child concepts exist within the ICD-10-CM classification system. 1

Coverage and utilization context

The code H35.70 appears in Medicare billing and coding guidance for scanning computerized ophthalmic diagnostic imaging, establishing its use in administrative billing contexts. 3

What the sources add

A clinical reference mapping lists H35.70 alongside H35.739 for hemorrhagic detachment of the retinal pigment epithelium, demonstrating operational distinctions between unspecified and specific retinal conditions. 5

While the terminology record defines H35.70 as an unspecified acquired abnormality, the Medicare billing article places this exact code adjacent to specific laterality codes like H35.711 and H35.712. 1 3

Questions to verify

The Medicare billing article lists H35.70 alongside more specific codes such as H35.711 for central serous chorioretinopathy of the right eye and H35.712 for the left eye. 3

Sources

1. ICD-10-CM H35.70 terminology record — National Cancer Institute Enterprise Vocabulary Services; accessed 2026-07-27.
2. Phecode 362.31 · ExPRSweb — csg.sph.umich.edu; accessed 2026-07-27.
3. Article - Billing and Coding: Scanning Computerized Ophthalmic Diagnostic Imaging (SCODI) (A56825) — cms.gov; accessed 2026-07-27.
4. Browse Code Systems — vsac.nlm.nih.gov; accessed 2026-07-27.
5. Contractor Information — aao.org; accessed 2026-07-27.