E10.321
E10.321: Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema
Non-billable headerICD-10-CM
E10.321 is a non-billable header ICD-10-CM code for type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
One of the following 7th characters is to be assigned to codes in subcategory E10.32 to designate laterality of the disease:
- 1
- right eye
- 2
- left eye
- 3
- bilateral
- 9
- unspecified eye
Excludes1 inherited from the categories above E10.321
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 E10.321
Their own Excludes1 notes name this code, so the conflict is not listed above.
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Alphabetic index entries that lead here
- Diabetes, diabetic›type 1›with›retinopathy›nonproliferative›with macular edema
- Diabetes, diabetic›type 1›with›retinopathy›nonproliferative›mild›with macular edema
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead E10.321
4 child codes. Green means billable.
- E10.3211Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema, right eye
- E10.3212Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema, left eye
- E10.3213Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema, bilateral
- E10.3219Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema, unspecified eye