E11 Type 2 diabetes mellitus

Category / Non-billable header 64 subcodes

Block: Diabetes mellitus (E08-E13)

Includes

  • diabetes (mellitus) due to insulin secretory defect
  • diabetes NOS
  • insulin resistant diabetes (mellitus)

Excludes 1 (cannot be coded together)

  • diabetes mellitus due to underlying condition (E08.-)
  • drug or chemical induced diabetes mellitus (E09.-)
  • 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.-)

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)

Subcodes

Each subcode links to a detail page with full clinical annotations.

Code Description Billable
E11..0 Type 2 diabetes mellitus with hyperosmolarity No
E11..00 Type 2 diabetes mellitus with hyperosmolarity without nonketotic hyperglycemic-hyperosmolar coma (NKHHC) Yes
E11..01 Type 2 diabetes mellitus with hyperosmolarity with coma Yes
E11..1 Type 2 diabetes mellitus with ketoacidosis No
E11..10 Type 2 diabetes mellitus with ketoacidosis without coma Yes
E11..11 Type 2 diabetes mellitus with ketoacidosis with coma Yes
E11..2 Type 2 diabetes mellitus with kidney complications No
E11..21 Type 2 diabetes mellitus with diabetic nephropathy Yes
E11..22 Type 2 diabetes mellitus with diabetic chronic kidney disease Yes
E11..29 Type 2 diabetes mellitus with other diabetic kidney complication Yes
E11..3 Type 2 diabetes mellitus with ophthalmic complications No
E11..31 Type 2 diabetes mellitus with unspecified diabetic retinopathy No
E11..311 Type 2 diabetes mellitus with unspecified diabetic retinopathy with macular edema Yes
E11..319 Type 2 diabetes mellitus with unspecified diabetic retinopathy without macular edema Yes
E11..32 Type 2 diabetes mellitus with mild nonproliferative diabetic retinopathy No
E11..321 Type 2 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema No
E11..329 Type 2 diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema No
E11..33 Type 2 diabetes mellitus with moderate nonproliferative diabetic retinopathy No
E11..331 Type 2 diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edema No
E11..339 Type 2 diabetes mellitus with moderate nonproliferative diabetic retinopathy without macular edema No
E11..34 Type 2 diabetes mellitus with severe nonproliferative diabetic retinopathy No
E11..341 Type 2 diabetes mellitus with severe nonproliferative diabetic retinopathy with macular edema No
E11..349 Type 2 diabetes mellitus with severe nonproliferative diabetic retinopathy without macular edema No
E11..35 Type 2 diabetes mellitus with proliferative diabetic retinopathy No
E11..351 Type 2 diabetes mellitus with proliferative diabetic retinopathy with macular edema No
E11..352 Type 2 diabetes mellitus with proliferative diabetic retinopathy with traction retinal detachment involving the macula No
E11..353 Type 2 diabetes mellitus with proliferative diabetic retinopathy with traction retinal detachment not involving the macula No
E11..354 Type 2 diabetes mellitus with proliferative diabetic retinopathy with combined traction retinal detachment and rhegmatogenous retinal detachment No
E11..355 Type 2 diabetes mellitus with stable proliferative diabetic retinopathy No
E11..359 Type 2 diabetes mellitus with proliferative diabetic retinopathy without macular edema No
E11..36 Type 2 diabetes mellitus with diabetic cataract Yes
E11..37 Type 2 diabetes mellitus with diabetic macular edema, resolved following treatment No
E11..39 Type 2 diabetes mellitus with other diabetic ophthalmic complication Yes
E11..4 Type 2 diabetes mellitus with neurological complications No
E11..40 Type 2 diabetes mellitus with diabetic neuropathy, unspecified Yes
E11..41 Type 2 diabetes mellitus with diabetic mononeuropathy Yes
E11..42 Type 2 diabetes mellitus with diabetic polyneuropathy Yes
E11..43 Type 2 diabetes mellitus with diabetic autonomic (poly)neuropathy Yes
E11..44 Type 2 diabetes mellitus with diabetic amyotrophy Yes
E11..49 Type 2 diabetes mellitus with other diabetic neurological complication Yes
E11..5 Type 2 diabetes mellitus with circulatory complications No
E11..51 Type 2 diabetes mellitus with diabetic peripheral angiopathy without gangrene Yes
E11..52 Type 2 diabetes mellitus with diabetic peripheral angiopathy with gangrene Yes
E11..59 Type 2 diabetes mellitus with other circulatory complications Yes
E11..6 Type 2 diabetes mellitus with other specified complications No
E11..61 Type 2 diabetes mellitus with diabetic arthropathy No
E11..610 Type 2 diabetes mellitus with diabetic neuropathic arthropathy Yes
E11..618 Type 2 diabetes mellitus with other diabetic arthropathy Yes
E11..62 Type 2 diabetes mellitus with skin complications No
E11..620 Type 2 diabetes mellitus with diabetic dermatitis Yes
E11..621 Type 2 diabetes mellitus with foot ulcer Yes
E11..622 Type 2 diabetes mellitus with other skin ulcer Yes
E11..628 Type 2 diabetes mellitus with other skin complications Yes
E11..63 Type 2 diabetes mellitus with oral complications No
E11..630 Type 2 diabetes mellitus with periodontal disease Yes
E11..638 Type 2 diabetes mellitus with other oral complications Yes
E11..64 Type 2 diabetes mellitus with hypoglycemia No
E11..641 Type 2 diabetes mellitus with hypoglycemia with coma Yes
E11..649 Type 2 diabetes mellitus with hypoglycemia without coma Yes
E11..65 Type 2 diabetes mellitus with hyperglycemia Yes
E11..69 Type 2 diabetes mellitus with other specified complication Yes
E11..8 Type 2 diabetes mellitus with unspecified complications Yes
E11..9 Type 2 diabetes mellitus without complications Yes
E11..A Type 2 diabetes mellitus without complications in remission Yes

Last reviewed: September 2026