ICD-10-CM 2027 diagnosis code
E09.3299Drug or chemical induced diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema, unspecified eye
E09.3299 is a valid, billable ICD-10-CM code for drug or chemical induced diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema, unspecified eye. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Drug/chem diab with mild nonp rtnop without mclr edema, unsp
Code last changed in FY2017 (effective October 1, 2016). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About E09.3299
E09.3299 is the ICD-10-CM diagnosis code for drug or chemical induced diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema, unspecified eye. It belongs to category E09 (drug or chemical induced diabetes mellitus), block E08-E13 (diabetes mellitus) and chapter 4 (endocrine, nutritional and metabolic diseases). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
The 7th character "9" means unspecified eye.
Code first: poisoning due to drug or toxin, if applicable (T36-T65 with fifth or sixth character 1-4).
Use an additional code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5). Use an additional code to identify control using: injectable non-insulin antidiabetic drugs (Z79.85), insulin (Z79.4), oral antidiabetic drugs (Z79.84) and oral hypoglycemic drugs (Z79.84).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 008 (Simultaneous Pancreas, Islet Cell and Kidney Transplant, relative weight 5.5146), DRG 010 (Pancreas or Islet Cell Transplant, relative weight 7.5259), DRG 019 (Simultaneous Pancreas, Islet Cell and Kidney Transplant with Hemodialysis, relative weight 7.5493), DRG 124 (Other Disorders of the Eye with MCC or Thrombolytic Agent, relative weight 1.2471) and DRG 125 (Other Disorders of the Eye without MCC, relative weight 0.7702), in Pre-MDC and MDC 02 (Diseases and Disorders of the Eye), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It was added in FY2017, effective October 1, 2016.
Before ICD-10, this condition was coded in ICD-9-CM as 249.50 (secondary diabetes mellitus with ophthalmic manifestations, not stated as uncontrolled, or unspecified) and 362.04 (mild nonproliferative diabetic retinopathy).
7th character
9unspecified eye
Other encounter types for E09.329:
Notes that apply from higher levels
Instructions written at a parent level also apply to E09.3299.
› From E09 Drug or chemical induced diabetes mellitus
- diabetes mellitus due to underlying condition (E08.-)
- gestational diabetes (O24.4-)
- neonatal diabetes mellitus (P70.2)
- postpancreatectomy diabetes mellitus (E13.-)
- postprocedural diabetes mellitus (E13.-)
- secondary diabetes mellitus NEC (E13.-)
- type 1 diabetes mellitus (E10.-)
- type 2 diabetes mellitus (E11.-)
Broader instructions also apply from Chapter 4: Endocrine, nutritional and metabolic diseases.
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC PRE · Pre-MDC
MDC PRE · Pre-MDC
MDC PRE · Pre-MDC
MDC 02 · Diseases and Disorders of the Eye
ICD-9-CM equivalent
Converter →- 249.50Secondary diabetes mellitus with ophthalmic manifestations, not stated as uncontrolled, or unspecifiedapproximate, combination
- 362.04Mild nonproliferative diabetic retinopathyapproximate, combination
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2017 (effective 10/1/2016): Added
- No changes since FY2017.
Common questions about E09.3299
Is E09.3299 billable?
- Yes. E09.3299 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
What does the "9" at the end of E09.3299 mean?
- It is the 7th character for unspecified eye.
Can E09.3299 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict E09.3299 as a principal diagnosis.
Is E09.3299 a CC or MCC?
- No. E09.3299 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does E09.3299 group to?
- E09.3299 is used in the MS-DRG v44.0 logic for MS-DRG 008 (Simultaneous Pancreas, Islet Cell and Kidney Transplant), MS-DRG 010 (Pancreas or Islet Cell Transplant), MS-DRG 019 (Simultaneous Pancreas, Islet Cell and Kidney Transplant with Hemodialysis), MS-DRG 124 (Other Disorders of the Eye with MCC or Thrombolytic Agent) and MS-DRG 125 (Other Disorders of the Eye without MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.
What is the ICD-9 code for E09.3299?
- The CMS General Equivalence Mappings map E09.3299 to ICD-9-CM 249.50 and 362.04.