Is E09.3299 a billable ICD-10-CM code?

Yes. E09.3299 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does E09.3299 sit in the tabular list?

Endocrine, nutritional and metabolic diseases (E00-E89), in the block Diabetes mellitus (E08-E13).

What cannot be coded together with E09.3299?

E09.3299 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above E09.3299 (E09) and apply to it just the same.

E09.3299

E09.3299 — Drug or chemical induced diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema, unspecified eye

Billable / specific codeICD-10-CM

E09.3299 is a billable, specific ICD-10-CM code for drug or chemical induced diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema, unspecified eye. It is valid for submission on a claim.

7th character "9" — unspecified eye

One of the following 7th characters is to be assigned to codes in subcategory E09.32 to designate laterality of the disease:

1: right eye
2: left eye
3: bilateral
9: unspecified eye

Excludes1 inherited from the categories above E09.3299

These are not written on E09.3299, but they bind it: a note on a category applies to every code beneath it. Billing E09.3299 with anything listed here is a denial.

Written on 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.-)

Other codes that can never be billed with E09.3299

These codes carry an Excludes1 note pointing at E09.3299. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading E09.3299 alone.

E10Type 1 diabetes mellitus
E11Type 2 diabetes mellitus
E13Other specified diabetes mellitus
E08Diabetes mellitus due to underlying condition

Risk adjustment

E09.3299 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

E09.3299 is named in 7 Medicare coverage policies — 7 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

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

Code history

E09.3299 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share E09.329. If E09.3299 is not quite right, the correct code is usually one of these.

Questions about E09.3299

Is E09.3299 a billable ICD-10-CM code?: Yes. E09.3299 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does E09.3299 sit in the tabular list?: Endocrine, nutritional and metabolic diseases (E00-E89), in the block Diabetes mellitus (E08-E13).
What cannot be coded together with E09.3299?: E09.3299 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above E09.3299 (E09) and apply to it just the same.