E13.3599 – Other specified diabetes mellitus with proliferative diabetic retinopathy without macular edema, unspecified eye

ICD-10-CM 2027 diagnosis code · Diabetes mellitus

Billable code

ICD-10-CM code E13.3599

Code: E13.3599 (claims format: E133599)
Description: Other specified diabetes mellitus with proliferative diabetic retinopathy without macular edema, unspecified eye
Short description: Oth diab with prolif diab rtnop without macular edema, unsp
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 4. Endocrine, nutritional and metabolic diseases (E00-E89)
Block: E08-E13 Diabetes mellitus
Parent codes: E13 › E13.3 › E13.35 › E13.359

7th character values

Codes in this category need a 7th character to describe the encounter or episode of care.

Character	Meaning
`1`	right eye
`2`	left eye
`3`	bilateral
`9`	unspecified eye

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

E13 – Other specified diabetes mellitus

Includes:

diabetes mellitus due to genetic defects of beta-cell function
diabetes mellitus due to genetic defects in insulin action
postpancreatectomy diabetes mellitus
postprocedural diabetes mellitus
secondary diabetes mellitus NEC

Excludes1 (not coded here):

diabetes (mellitus) due to autoimmune process (E10.-)
diabetes (mellitus) due to immune mediated pancreatic islet beta-cell destruction (E10.-)
diabetes mellitus due to underlying condition (E08.-)
drug or chemical induced diabetes mellitus (E09.-)
gestational diabetes (O24.4-)
neonatal diabetes mellitus (P70.2)
type 1 diabetes mellitus (E10.-)

Use additional code:

code to identify control using:
injectable non-insulin antidiabetic drugs (Z79.85)
insulin (Z79.4)
oral antidiabetic drugs (Z79.84)
oral hypoglycemic drugs (Z79.84)

E13.35 – Other specified diabetes mellitus with proliferative diabetic retinopathy

7th character note:

One of the following 7th characters is to be assigned to codes in subcategory E13.35 to designate laterality of the disease:

Related codes in E13.359

Frequently asked questions

What is ICD-10 code E13.3599?

E13.3599 is the ICD-10-CM code for other specified diabetes mellitus with proliferative diabetic retinopathy without macular edema, unspecified eye, in the block E08-E13 (Diabetes mellitus).

Is E13.3599 a billable code?

Yes. E13.3599 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does E13.3599 belong to?

It belongs to category E13 – Other specified diabetes mellitus.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.