MCMedicalCodingSoftware
E10.3599

E10.3599: Type 1 diabetes mellitus with proliferative diabetic retinopathy without macular edema, unspecified eye

Billable / specific codeICD-10-CM

E10.3599 is a billable, specific ICD-10-CM code for type 1 diabetes mellitus with proliferative diabetic retinopathy without macular edema, unspecified eye. It is valid for submission on a claim.

Check E10.3599 with the rest of the claim: free scrubber

7th character "9": unspecified eye

One of the following 7th characters is to be assigned to codes in subcategory E10.35 to designate laterality of the disease:

1
right eye
2
left eye
3
bilateral
9
unspecified eye

Excludes1 inherited from the categories above E10.3599

A category’s note binds every code beneath it.

Written on E10: Type 1 diabetes mellitus

  • diabetes mellitus due to underlying condition (E08.-)
  • drug or chemical induced diabetes mellitus (E09.-)
  • gestational diabetes (O24.4-)
  • hyperglycemia NOS (R73.9)
  • neonatal diabetes mellitus (P70.2)
  • postpancreatectomy diabetes mellitus (E13.-)
  • postprocedural diabetes mellitus (E13.-)
  • secondary diabetes mellitus NEC (E13.-)
  • type 2 diabetes mellitus (E11.-)

Other codes that can never be billed with E10.3599

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • E08Diabetes mellitus due to underlying condition
  • E09Drug or chemical induced diabetes mellitus
  • E11Type 2 diabetes mellitus
  • E13Other specified diabetes mellitus
  • Q45.3Other congenital malformations of pancreas and pancreatic duct

Risk adjustment

E10.3599 risk-adjusts. Under the CMS-HCC V28 model it maps to these categories:

  • HCC 37 Diabetes with Chronic Complications0.166 RAF
  • HCC 37 Diabetes with Chronic Complications0.166 RAF
  • HCC 298 Severe Diabetic Eye Disease, Retinal Vein Occlusion, and Vitreous Hemorrhage0.336 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.

Medicare coverage

E10.3599 is named in 10 Medicare coverage policies: 10 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A52464Glucose Monitor - Policy Article
  • A52501Therapeutic Shoes for Persons with Diabetes - Policy Article
  • A52507External Infusion Pumps - Policy Article
  • A56232Billing and Coding: Foot Care

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under E10.359

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.