E10.3551 (Type 1 diabetes mellitus with stable proliferative diabetic retinopathy, right eye) compared with E10.3559 (Type 1 diabetes mellitus with stable proliferative diabetic retinopathy, unspecified eye), from the official CMS tabular data. E10.3551 and E10.3559 code the same condition on opposite sides.
Same condition; these differ only in which side is documented.
These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.
Source: ICD-10-CM tabular list (laterality variant derived from the code title)
Same condition, opposite side. E10.3551 and E10.3559 name the same condition on opposite sides of the body.
Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.
| E10.3551Type 1 diabetes mellitus with stable proliferative diabetic retinopathy, right eye | E10.3559Type 1 diabetes mellitus with stable proliferative diabetic retinopathy, unspecified eye | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | E00-E89 — Endocrine, Nutritional and Metabolic Diseases (E00-E89) | E00-E89 — Endocrine, Nutritional and Metabolic Diseases (E00-E89) |
| Definition | Type 1 diabetes mellitus with stable proliferative diabetic retinopathy, right eye is a billable ICD-10-CM diagnosis code (E10.3551). | Type 1 diabetes mellitus with stable proliferative diabetic retinopathy, unspecified eye is a billable ICD-10-CM diagnosis code (E10.3559). |
| 7th character | One of the following 7th characters is to be assigned to codes in subcategory E10.35 to designate laterality of the disease: | One of the following 7th characters is to be assigned to codes in subcategory E10.35 to designate laterality of the disease: |
| Includes | brittle diabetes (mellitus) diabetes (mellitus) due to autoimmune process diabetes (mellitus) due to immune mediated pancreatic islet beta-cell destruction idiopathic diabetes (mellitus) | brittle diabetes (mellitus) diabetes (mellitus) due to autoimmune process diabetes (mellitus) due to immune mediated pancreatic islet beta-cell destruction idiopathic diabetes (mellitus) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources