Complete Guide to Diabetes ICD-10 Codes
Diabetes mellitus is coded using ICD-10-CM categories E08-E13, with each category representing a different etiology. Type 2 diabetes (E11) accounts for over 90% of diabetes cases and generates the highest hospitalization volume. Accurate coding requires specifying the type of diabetes and any associated complications.
237
Billable Codes
8,715,840
Annual Hospitalizations
E08-E13
Code Range
1
New in 2026
Code Categories
Most Common Codes by Hospitalizations
1.E09.22Drug or chemical induced diabetes mellitus with diabetic chronic kidney disease131,336 hosp.
8.E08.22Diabetes mellitus due to underlying condition with diabetic chronic kidney disease111,371 hosp.
9.E08.29Diabetes mellitus due to underlying condition with other diabetic kidney complication111,371 hosp.
11.E09.29Drug or chemical induced diabetes mellitus with other diabetic kidney complication111,371 hosp.
New Codes for 2026
E11.AType 2 diabetes mellitus without complications in remission
Complete Code Listing
- E08.00Diabetes mellitus due to underlying condition with hyperosmolarity without nonketotic hyperglycemic-hyperosmolar coma (NKHHC)
- E08.01Diabetes mellitus due to underlying condition with hyperosmolarity with coma
- E08.10Diabetes mellitus due to underlying condition with ketoacidosis without coma
- E08.11Diabetes mellitus due to underlying condition with ketoacidosis with coma
- E08.21Diabetes mellitus due to underlying condition with diabetic nephropathy
- E08.22Diabetes mellitus due to underlying condition with diabetic chronic kidney disease
- E08.29Diabetes mellitus due to underlying condition with other diabetic kidney complication
- E08.311Diabetes mellitus due to underlying condition with unspecified diabetic retinopathy with macular edema
- E08.319Diabetes mellitus due to underlying condition with unspecified diabetic retinopathy without macular edema
- E08.321Diabetes mellitus due to underlying condition with mild nonproliferative diabetic retinopathy with macular edema
- E08.329Diabetes mellitus due to underlying condition with mild nonproliferative diabetic retinopathy without macular edema
- E08.331Diabetes mellitus due to underlying condition with moderate nonproliferative diabetic retinopathy with macular edema
- E08.339Diabetes mellitus due to underlying condition with moderate nonproliferative diabetic retinopathy without macular edema
- E08.341Diabetes mellitus due to underlying condition with severe nonproliferative diabetic retinopathy with macular edema
- E08.349Diabetes mellitus due to underlying condition with severe nonproliferative diabetic retinopathy without macular edema
- E08.351Diabetes mellitus due to underlying condition with proliferative diabetic retinopathy with macular edema
- E08.352Diabetes mellitus due to underlying condition with proliferative diabetic retinopathy with traction retinal detachment involving the macula
- E08.353Diabetes mellitus due to underlying condition with proliferative diabetic retinopathy with traction retinal detachment not involving the macula
- E08.354Diabetes mellitus due to underlying condition with proliferative diabetic retinopathy with combined traction retinal detachment and rhegmatogenous retinal detachment
- E08.355Diabetes mellitus due to underlying condition with stable proliferative diabetic retinopathy
- E08.359Diabetes mellitus due to underlying condition with proliferative diabetic retinopathy without macular edema
- E08.36Diabetes mellitus due to underlying condition with diabetic cataract
- E08.37Diabetes mellitus due to underlying condition with diabetic macular edema, resolved following treatment
- E08.39Diabetes mellitus due to underlying condition with other diabetic ophthalmic complication
- E08.40Diabetes mellitus due to underlying condition with diabetic neuropathy, unspecified
- E08.41Diabetes mellitus due to underlying condition with diabetic mononeuropathy
- E08.42Diabetes mellitus due to underlying condition with diabetic polyneuropathy
- E08.43Diabetes mellitus due to underlying condition with diabetic autonomic (poly)neuropathy
- E08.44Diabetes mellitus due to underlying condition with diabetic amyotrophy
- E08.49Diabetes mellitus due to underlying condition with other diabetic neurological complication
- E08.51Diabetes mellitus due to underlying condition with diabetic peripheral angiopathy without gangrene
- E08.52Diabetes mellitus due to underlying condition with diabetic peripheral angiopathy with gangrene
- E08.59Diabetes mellitus due to underlying condition with other circulatory complications
- E08.610Diabetes mellitus due to underlying condition with diabetic neuropathic arthropathy
- E08.618Diabetes mellitus due to underlying condition with other diabetic arthropathy
- E08.620Diabetes mellitus due to underlying condition with diabetic dermatitis
- E08.621Diabetes mellitus due to underlying condition with foot ulcer
- E08.622Diabetes mellitus due to underlying condition with other skin ulcer
- E08.628Diabetes mellitus due to underlying condition with other skin complications
- E08.630Diabetes mellitus due to underlying condition with periodontal disease
- E08.638Diabetes mellitus due to underlying condition with other oral complications
- E08.641Diabetes mellitus due to underlying condition with hypoglycemia with coma
- E08.649Diabetes mellitus due to underlying condition with hypoglycemia without coma
- E08.65Diabetes mellitus due to underlying condition with hyperglycemia
- E08.69Diabetes mellitus due to underlying condition with other specified complication
- E08.8Diabetes mellitus due to underlying condition with unspecified complications
- E08.9Diabetes mellitus due to underlying condition without complications
- E09.00Drug or chemical induced diabetes mellitus with hyperosmolarity without nonketotic hyperglycemic-hyperosmolar coma (NKHHC)
- E09.01Drug or chemical induced diabetes mellitus with hyperosmolarity with coma
- E09.10Drug or chemical induced diabetes mellitus with ketoacidosis without coma
- E09.11Drug or chemical induced diabetes mellitus with ketoacidosis with coma
- E09.21Drug or chemical induced diabetes mellitus with diabetic nephropathy
- E09.22Drug or chemical induced diabetes mellitus with diabetic chronic kidney disease
- E09.29Drug or chemical induced diabetes mellitus with other diabetic kidney complication
- E09.311Drug or chemical induced diabetes mellitus with unspecified diabetic retinopathy with macular edema
- E09.319Drug or chemical induced diabetes mellitus with unspecified diabetic retinopathy without macular edema
- E09.321Drug or chemical induced diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema
- E09.329Drug or chemical induced diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema
- E09.331Drug or chemical induced diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edema
- E09.339Drug or chemical induced diabetes mellitus with moderate nonproliferative diabetic retinopathy without macular edema
- E09.341Drug or chemical induced diabetes mellitus with severe nonproliferative diabetic retinopathy with macular edema
- E09.349Drug or chemical induced diabetes mellitus with severe nonproliferative diabetic retinopathy without macular edema
- E09.351Drug or chemical induced diabetes mellitus with proliferative diabetic retinopathy with macular edema
- E09.352Drug or chemical induced diabetes mellitus with proliferative diabetic retinopathy with traction retinal detachment involving the macula
- E09.353Drug or chemical induced diabetes mellitus with proliferative diabetic retinopathy with traction retinal detachment not involving the macula
- E09.354Drug or chemical induced diabetes mellitus with proliferative diabetic retinopathy with combined traction retinal detachment and rhegmatogenous retinal detachment
- E09.355Drug or chemical induced diabetes mellitus with stable proliferative diabetic retinopathy
- E09.359Drug or chemical induced diabetes mellitus with proliferative diabetic retinopathy without macular edema
- E09.36Drug or chemical induced diabetes mellitus with diabetic cataract
- E09.37Drug or chemical induced diabetes mellitus with diabetic macular edema, resolved following treatment
- E09.39Drug or chemical induced diabetes mellitus with other diabetic ophthalmic complication
- E09.40Drug or chemical induced diabetes mellitus with neurological complications with diabetic neuropathy, unspecified
- E09.41Drug or chemical induced diabetes mellitus with neurological complications with diabetic mononeuropathy
- E09.42Drug or chemical induced diabetes mellitus with neurological complications with diabetic polyneuropathy
- E09.43Drug or chemical induced diabetes mellitus with neurological complications with diabetic autonomic (poly)neuropathy
- E09.44Drug or chemical induced diabetes mellitus with neurological complications with diabetic amyotrophy
- E09.49Drug or chemical induced diabetes mellitus with neurological complications with other diabetic neurological complication
- E09.51Drug or chemical induced diabetes mellitus with diabetic peripheral angiopathy without gangrene
- E09.52Drug or chemical induced diabetes mellitus with diabetic peripheral angiopathy with gangrene
- E09.59Drug or chemical induced diabetes mellitus with other circulatory complications
- E09.610Drug or chemical induced diabetes mellitus with diabetic neuropathic arthropathy
- E09.618Drug or chemical induced diabetes mellitus with other diabetic arthropathy
- E09.620Drug or chemical induced diabetes mellitus with diabetic dermatitis
- E09.621Drug or chemical induced diabetes mellitus with foot ulcer
- E09.622Drug or chemical induced diabetes mellitus with other skin ulcer
- E09.628Drug or chemical induced diabetes mellitus with other skin complications
- E09.630Drug or chemical induced diabetes mellitus with periodontal disease
- E09.638Drug or chemical induced diabetes mellitus with other oral complications
- E09.641Drug or chemical induced diabetes mellitus with hypoglycemia with coma
- E09.649Drug or chemical induced diabetes mellitus with hypoglycemia without coma
- E09.65Drug or chemical induced diabetes mellitus with hyperglycemia
- E09.69Drug or chemical induced diabetes mellitus with other specified complication
- E09.8Drug or chemical induced diabetes mellitus with unspecified complications
- E09.9Drug or chemical induced diabetes mellitus without complications
- E10.10Type 1 diabetes mellitus with ketoacidosis without coma
- E10.11Type 1 diabetes mellitus with ketoacidosis with coma
- E10.21Type 1 diabetes mellitus with diabetic nephropathy
- E10.22Type 1 diabetes mellitus with diabetic chronic kidney disease
- E10.29Type 1 diabetes mellitus with other diabetic kidney complication
- E10.311Type 1 diabetes mellitus with unspecified diabetic retinopathy with macular edema
- E10.319Type 1 diabetes mellitus with unspecified diabetic retinopathy without macular edema
- E10.321Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema
- E10.329Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema
- E10.331Type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edema
- E10.339Type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathy without macular edema
- E10.341Type 1 diabetes mellitus with severe nonproliferative diabetic retinopathy with macular edema
- E10.349Type 1 diabetes mellitus with severe nonproliferative diabetic retinopathy without macular edema
- E10.351Type 1 diabetes mellitus with proliferative diabetic retinopathy with macular edema
- E10.352Type 1 diabetes mellitus with proliferative diabetic retinopathy with traction retinal detachment involving the macula
- E10.353Type 1 diabetes mellitus with proliferative diabetic retinopathy with traction retinal detachment not involving the macula
- E10.354Type 1 diabetes mellitus with proliferative diabetic retinopathy with combined traction retinal detachment and rhegmatogenous retinal detachment
- E10.355Type 1 diabetes mellitus with stable proliferative diabetic retinopathy
- E10.359Type 1 diabetes mellitus with proliferative diabetic retinopathy without macular edema
- E10.36Type 1 diabetes mellitus with diabetic cataract
- E10.37Type 1 diabetes mellitus with diabetic macular edema, resolved following treatment
- E10.39Type 1 diabetes mellitus with other diabetic ophthalmic complication
- E10.40Type 1 diabetes mellitus with diabetic neuropathy, unspecified
- E10.41Type 1 diabetes mellitus with diabetic mononeuropathy
- E10.42Type 1 diabetes mellitus with diabetic polyneuropathy
- E10.43Type 1 diabetes mellitus with diabetic autonomic (poly)neuropathy
- E10.44Type 1 diabetes mellitus with diabetic amyotrophy
- E10.49Type 1 diabetes mellitus with other diabetic neurological complication
- E10.51Type 1 diabetes mellitus with diabetic peripheral angiopathy without gangrene
- E10.52Type 1 diabetes mellitus with diabetic peripheral angiopathy with gangrene
- E10.59Type 1 diabetes mellitus with other circulatory complications
- E10.610Type 1 diabetes mellitus with diabetic neuropathic arthropathy
- E10.618Type 1 diabetes mellitus with other diabetic arthropathy
- E10.620Type 1 diabetes mellitus with diabetic dermatitis
- E10.621Type 1 diabetes mellitus with foot ulcer
- E10.622Type 1 diabetes mellitus with other skin ulcer
- E10.628Type 1 diabetes mellitus with other skin complications
- E10.630Type 1 diabetes mellitus with periodontal disease
- E10.638Type 1 diabetes mellitus with other oral complications
- E10.641Type 1 diabetes mellitus with hypoglycemia with coma
- E10.649Type 1 diabetes mellitus with hypoglycemia without coma
- E10.65Type 1 diabetes mellitus with hyperglycemia
- E10.69Type 1 diabetes mellitus with other specified complication
- E10.8Type 1 diabetes mellitus with unspecified complications
- E10.9Type 1 diabetes mellitus without complications
- E10.A0Type 1 diabetes mellitus, presymptomatic, unspecified
- E10.A1Type 1 diabetes mellitus, presymptomatic, Stage 1
- E10.A2Type 1 diabetes mellitus, presymptomatic, Stage 2
- E11.00Type 2 diabetes mellitus with hyperosmolarity without nonketotic hyperglycemic-hyperosmolar coma (NKHHC)
- E11.01Type 2 diabetes mellitus with hyperosmolarity with coma
- E11.10Type 2 diabetes mellitus with ketoacidosis without coma
- E11.11Type 2 diabetes mellitus with ketoacidosis with coma
- E11.21Type 2 diabetes mellitus with diabetic nephropathy
- E11.22Type 2 diabetes mellitus with diabetic chronic kidney disease
- E11.29Type 2 diabetes mellitus with other diabetic kidney complication
- E11.311Type 2 diabetes mellitus with unspecified diabetic retinopathy with macular edema
- E11.319Type 2 diabetes mellitus with unspecified diabetic retinopathy without macular edema
- E11.321Type 2 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema
- E11.329Type 2 diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema
- E11.331Type 2 diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edema
- E11.339Type 2 diabetes mellitus with moderate nonproliferative diabetic retinopathy without macular edema
- E11.341Type 2 diabetes mellitus with severe nonproliferative diabetic retinopathy with macular edema
- E11.349Type 2 diabetes mellitus with severe nonproliferative diabetic retinopathy without macular edema
- E11.351Type 2 diabetes mellitus with proliferative diabetic retinopathy with macular edema
- E11.352Type 2 diabetes mellitus with proliferative diabetic retinopathy with traction retinal detachment involving the macula
- E11.353Type 2 diabetes mellitus with proliferative diabetic retinopathy with traction retinal detachment not involving the macula
- E11.354Type 2 diabetes mellitus with proliferative diabetic retinopathy with combined traction retinal detachment and rhegmatogenous retinal detachment
- E11.355Type 2 diabetes mellitus with stable proliferative diabetic retinopathy
- E11.359Type 2 diabetes mellitus with proliferative diabetic retinopathy without macular edema
- E11.36Type 2 diabetes mellitus with diabetic cataract
- E11.37Type 2 diabetes mellitus with diabetic macular edema, resolved following treatment
- E11.39Type 2 diabetes mellitus with other diabetic ophthalmic complication
- E11.40Type 2 diabetes mellitus with diabetic neuropathy, unspecified
- E11.41Type 2 diabetes mellitus with diabetic mononeuropathy
- E11.42Type 2 diabetes mellitus with diabetic polyneuropathy
- E11.43Type 2 diabetes mellitus with diabetic autonomic (poly)neuropathy
- E11.44Type 2 diabetes mellitus with diabetic amyotrophy
- E11.49Type 2 diabetes mellitus with other diabetic neurological complication
- E11.51Type 2 diabetes mellitus with diabetic peripheral angiopathy without gangrene
- E11.52Type 2 diabetes mellitus with diabetic peripheral angiopathy with gangrene
- E11.59Type 2 diabetes mellitus with other circulatory complications
- E11.610Type 2 diabetes mellitus with diabetic neuropathic arthropathy
- E11.618Type 2 diabetes mellitus with other diabetic arthropathy
- E11.620Type 2 diabetes mellitus with diabetic dermatitis
- E11.621Type 2 diabetes mellitus with foot ulcer
- E11.622Type 2 diabetes mellitus with other skin ulcer
- E11.628Type 2 diabetes mellitus with other skin complications
- E11.630Type 2 diabetes mellitus with periodontal disease
- E11.638Type 2 diabetes mellitus with other oral complications
- E11.641Type 2 diabetes mellitus with hypoglycemia with coma
- E11.649Type 2 diabetes mellitus with hypoglycemia without coma
- E11.65Type 2 diabetes mellitus with hyperglycemia
- E11.69Type 2 diabetes mellitus with other specified complication
- E11.8Type 2 diabetes mellitus with unspecified complications
- E11.9Type 2 diabetes mellitus without complications
- E11.ANEWType 2 diabetes mellitus without complications in remission
- E13.00Other specified diabetes mellitus with hyperosmolarity without nonketotic hyperglycemic-hyperosmolar coma (NKHHC)
- E13.01Other specified diabetes mellitus with hyperosmolarity with coma
- E13.10Other specified diabetes mellitus with ketoacidosis without coma
- E13.11Other specified diabetes mellitus with ketoacidosis with coma
- E13.21Other specified diabetes mellitus with diabetic nephropathy
- E13.22Other specified diabetes mellitus with diabetic chronic kidney disease
- E13.29Other specified diabetes mellitus with other diabetic kidney complication
- E13.311Other specified diabetes mellitus with unspecified diabetic retinopathy with macular edema
- E13.319Other specified diabetes mellitus with unspecified diabetic retinopathy without macular edema
- E13.321Other specified diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema
- E13.329Other specified diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema
- E13.331Other specified diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edema
- E13.339Other specified diabetes mellitus with moderate nonproliferative diabetic retinopathy without macular edema
- E13.341Other specified diabetes mellitus with severe nonproliferative diabetic retinopathy with macular edema
- E13.349Other specified diabetes mellitus with severe nonproliferative diabetic retinopathy without macular edema
- E13.351Other specified diabetes mellitus with proliferative diabetic retinopathy with macular edema
- E13.352Other specified diabetes mellitus with proliferative diabetic retinopathy with traction retinal detachment involving the macula
- E13.353Other specified diabetes mellitus with proliferative diabetic retinopathy with traction retinal detachment not involving the macula
- E13.354Other specified diabetes mellitus with proliferative diabetic retinopathy with combined traction retinal detachment and rhegmatogenous retinal detachment
- E13.355Other specified diabetes mellitus with stable proliferative diabetic retinopathy
- E13.359Other specified diabetes mellitus with proliferative diabetic retinopathy without macular edema
- E13.36Other specified diabetes mellitus with diabetic cataract
- E13.37Other specified diabetes mellitus with diabetic macular edema, resolved following treatment
- E13.39Other specified diabetes mellitus with other diabetic ophthalmic complication
- E13.40Other specified diabetes mellitus with diabetic neuropathy, unspecified
- E13.41Other specified diabetes mellitus with diabetic mononeuropathy
- E13.42Other specified diabetes mellitus with diabetic polyneuropathy
- E13.43Other specified diabetes mellitus with diabetic autonomic (poly)neuropathy
- E13.44Other specified diabetes mellitus with diabetic amyotrophy
- E13.49Other specified diabetes mellitus with other diabetic neurological complication
- E13.51Other specified diabetes mellitus with diabetic peripheral angiopathy without gangrene
- E13.52Other specified diabetes mellitus with diabetic peripheral angiopathy with gangrene
- E13.59Other specified diabetes mellitus with other circulatory complications
- E13.610Other specified diabetes mellitus with diabetic neuropathic arthropathy
- E13.618Other specified diabetes mellitus with other diabetic arthropathy
- E13.620Other specified diabetes mellitus with diabetic dermatitis
- E13.621Other specified diabetes mellitus with foot ulcer
- E13.622Other specified diabetes mellitus with other skin ulcer
- E13.628Other specified diabetes mellitus with other skin complications
- E13.630Other specified diabetes mellitus with periodontal disease
- E13.638Other specified diabetes mellitus with other oral complications
- E13.641Other specified diabetes mellitus with hypoglycemia with coma
- E13.649Other specified diabetes mellitus with hypoglycemia without coma
- E13.65Other specified diabetes mellitus with hyperglycemia
- E13.69Other specified diabetes mellitus with other specified complication
- E13.8Other specified diabetes mellitus with unspecified complications
- E13.9Other specified diabetes mellitus without complications
Common Coding Mistakes
Using E11.9 (unspecified) when complications are documented
Correction: Always code to highest specificity. If neuropathy is documented, use E11.40-E11.49.
Not coding hyperglycemia (E11.65) for "uncontrolled" diabetes
Correction: When documentation states "uncontrolled," "poorly controlled," or "out of control" diabetes, add E11.65.
Missing combination codes for multiple complications
Correction: Use combination codes like E11.36 (retinopathy with macular edema) instead of separate codes.
Coding manifestations without the underlying diabetes code
Correction: Diabetic manifestation codes require the diabetes code to be sequenced first.
Using E10 (Type 1) for insulin-dependent Type 2 patients
Correction: Type 1 vs Type 2 is based on etiology, not treatment. Many Type 2 patients require insulin.
Frequently Asked Questions
What is the ICD-10 code for Type 2 diabetes?
The base code for Type 2 diabetes is E11.9 (Type 2 diabetes mellitus without complications). However, you should code to highest specificity. Common codes include E11.65 (with hyperglycemia), E11.40 (with neuropathy), and E11.21 (with diabetic nephropathy).
When should I use E11.65 vs E11.9?
Use E11.65 when documentation indicates "uncontrolled," "poorly controlled," "inadequately controlled," or "out of control" diabetes. Use E11.9 only when no complications and no mention of control issues are documented.
How do I code diabetes with multiple complications?
Use as many codes from category E11 as needed to describe all complications. The codes are designed to be used together. For example, a patient with neuropathy and nephropathy would receive both E11.40 and E11.21.
What is the difference between E08, E09, E10, E11, and E13?
E08 is for diabetes due to an underlying condition (like cystic fibrosis). E09 is drug or chemical induced. E10 is Type 1 (autoimmune). E11 is Type 2 (insulin resistance). E13 is for other specified types like MODY or latent autoimmune diabetes.
Related Resources
Data based on CMS ICD-10-CM codes and Medicare hospitalization statistics. Always verify codes against current clinical documentation.