DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

E11 Type 2 diabetes mellitus

  • Header · not billable
  • Some codes take a 7th character

E11 is not billable. The category heads 87 billable codes in FY2027, grouped under 10 subdivisions.

ICD-10 code by name

What is the ICD-10 code for type 2 diabetes?
Type 2 diabetes ICD-10 code: E11.9 Type 2 diabetes mellitus without complications. Alphabetic Index: Diabetes, diabetic (mellitus) (sugar)type 2 → E11.9. Search ICD-10 for type 2 diabetes
What is the ICD-10 code for diabetes?
Diabetes ICD-10 code: E11.9 Type 2 diabetes mellitus without complications. Alphabetic Index: Diabetes, diabetic (mellitus) (sugar) → E11.9. Search ICD-10 for diabetes
What is the ICD-10 code for diabetes mellitus?
Diabetes mellitus ICD-10 code: E11.9 Type 2 diabetes mellitus without complications. Alphabetic Index: Diabetes, diabetic (mellitus) (sugar) → E11.9. Search ICD-10 for diabetes mellitus

Where it sits

  1. Chapter 4 Endocrine, nutritional and metabolic diseases (E00-E89)
  2. E08-E13 Diabetes mellitus (E08-E13)
  3. E11 Type 2 diabetes mellitus
Billable codes
87
Subdivisions
10
CC / MCC codes
1 / 5
HCC V28 codes
86
New FY2027
0
Index entries
131

Codes in E11

  1. E11.0
    Type 2 diabetes mellitus with hyperosmolarity
    Header
  2. E11.00
    Type 2 diabetes mellitus with hyperosmolarity without nonketotic hyperglycemic-hyperosmolar coma (NKHHC)
    BillableMCC36
  3. E11.01
    Type 2 diabetes mellitus with hyperosmolarity with coma
    BillableMCC36
  4. E11.1
    Type 2 diabetes mellitus with ketoacidosis
    Header
  5. E11.10
    Type 2 diabetes mellitus with ketoacidosis without coma
    BillableMCC36
  6. E11.11
    Type 2 diabetes mellitus with ketoacidosis with coma
    BillableMCC36
  7. E11.2
    Type 2 diabetes mellitus with kidney complications
    Header
  8. E11.21
    Type 2 diabetes mellitus with diabetic nephropathy
    Billable37
    Inclusion terms 3

    Inclusion terms

    • Type 2 diabetes mellitus with intercapillary glomerulosclerosis
    • Type 2 diabetes mellitus with intracapillary glomerulonephrosis
    • Type 2 diabetes mellitus with Kimmelstiel-Wilson disease
  9. E11.22
    Type 2 diabetes mellitus with diabetic chronic kidney disease
    Billable37
    Use additional code 1

    Use additional code

    • code to identify stage of chronic kidney disease (N18.1-N18.6) N18.1 N18.6
  10. E11.29
    Type 2 diabetes mellitus with other diabetic kidney complication
    Billable37
    Inclusion terms 1

    Inclusion terms

    • Type 2 diabetes mellitus with renal tubular degeneration
  11. E11.3
    Type 2 diabetes mellitus with ophthalmic complications
    Header
  12. E11.31
    Type 2 diabetes mellitus with unspecified diabetic retinopathy
    Header
  13. E11.311
    Type 2 diabetes mellitus with unspecified diabetic retinopathy with macular edema
    Billable37 298
  14. E11.319
    Type 2 diabetes mellitus with unspecified diabetic retinopathy without macular edema
    Billable37
  15. E11.32
    Type 2 diabetes mellitus with mild nonproliferative diabetic retinopathy
    Header
    Inclusion terms 1

    Inclusion terms

    • Type 2 diabetes mellitus with nonproliferative diabetic retinopathy NOS
  16. E11.321
    Type 2 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema +7th: 1 2 3 9
    Needs 7th character37 298 (all 7th characters)
  17. E11.329
    Type 2 diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema +7th: 1 2 3 9
    Needs 7th character37 (all 7th characters)
  18. E11.33
    Type 2 diabetes mellitus with moderate nonproliferative diabetic retinopathy
    Header
  19. E11.331
    Type 2 diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edema +7th: 1 2 3 9
    Needs 7th character37 298 (all 7th characters)
  20. E11.339
    Type 2 diabetes mellitus with moderate nonproliferative diabetic retinopathy without macular edema +7th: 1 2 3 9
    Needs 7th character37 (all 7th characters)
  21. E11.34
    Type 2 diabetes mellitus with severe nonproliferative diabetic retinopathy
    Header
  22. E11.341
    Type 2 diabetes mellitus with severe nonproliferative diabetic retinopathy with macular edema +7th: 1 2 3 9
    Needs 7th character37 298 (all 7th characters)
  23. E11.349
    Type 2 diabetes mellitus with severe nonproliferative diabetic retinopathy without macular edema +7th: 1 2 3 9
    Needs 7th character37 (all 7th characters)
  24. E11.35
    Type 2 diabetes mellitus with proliferative diabetic retinopathy
    Header
  25. E11.351
    Type 2 diabetes mellitus with proliferative diabetic retinopathy with macular edema +7th: 1 2 3 9
    Needs 7th character37 298 (all 7th characters)
  26. E11.352
    Type 2 diabetes mellitus with proliferative diabetic retinopathy with traction retinal detachment involving the macula +7th: 1 2 3 9
    Needs 7th character37 298 (all 7th characters)
  27. E11.353
    Type 2 diabetes mellitus with proliferative diabetic retinopathy with traction retinal detachment not involving the macula +7th: 1 2 3 9
    Needs 7th character37 298 (all 7th characters)
  28. E11.354
    Type 2 diabetes mellitus with proliferative diabetic retinopathy with combined traction retinal detachment and rhegmatogenous retinal detachment +7th: 1 2 3 9
    Needs 7th character37 298 (all 7th characters)
  29. E11.355
    Type 2 diabetes mellitus with stable proliferative diabetic retinopathy +7th: 1 2 3 9
    Needs 7th character37 298 (all 7th characters)
  30. E11.359
    Type 2 diabetes mellitus with proliferative diabetic retinopathy without macular edema +7th: 1 2 3 9
    Needs 7th character37 298 (all 7th characters)
  31. E11.36
    Type 2 diabetes mellitus with diabetic cataract
    Billable37
  32. E11.37
    Type 2 diabetes mellitus with diabetic macular edema, resolved following treatment +7th: 1 2 3 9
    Needs 7th character37 (all 7th characters)
  33. E11.39
    Type 2 diabetes mellitus with other diabetic ophthalmic complication
    Billable37
    Use additional code 2

    Use additional code

    • code to identify manifestation, such as:
    • diabetic glaucoma (H40-H42) H40 H42
  34. E11.4
    Type 2 diabetes mellitus with neurological complications
    Header
  35. E11.40
    Type 2 diabetes mellitus with diabetic neuropathy, unspecified
    Billable37
  36. E11.41
    Type 2 diabetes mellitus with diabetic mononeuropathy
    Billable37
  37. E11.42
    Type 2 diabetes mellitus with diabetic polyneuropathy
    Billable37
    Inclusion terms 1

    Inclusion terms

    • Type 2 diabetes mellitus with diabetic neuralgia
  38. E11.43
    Type 2 diabetes mellitus with diabetic autonomic (poly)neuropathy
    Billable37
    Inclusion terms 1

    Inclusion terms

    • Type 2 diabetes mellitus with diabetic gastroparesis
  39. E11.44
    Type 2 diabetes mellitus with diabetic amyotrophy
    Billable37
  40. E11.49
    Type 2 diabetes mellitus with other diabetic neurological complication
    Billable37
  41. E11.5
    Type 2 diabetes mellitus with circulatory complications
    Header
  42. E11.51
    Type 2 diabetes mellitus with diabetic peripheral angiopathy without gangrene
    Billable37
  43. E11.52
    Type 2 diabetes mellitus with diabetic peripheral angiopathy with gangrene
    BillableCC37 263
    Inclusion terms 1

    Inclusion terms

    • Type 2 diabetes mellitus with diabetic gangrene
  44. E11.59
    Type 2 diabetes mellitus with other circulatory complications
    Billable37
  45. E11.6
    Type 2 diabetes mellitus with other specified complications
    Header
  46. E11.61
    Type 2 diabetes mellitus with diabetic arthropathy
    Header
  47. E11.610
    Type 2 diabetes mellitus with diabetic neuropathic arthropathy
    Billable37
    Inclusion terms 1

    Inclusion terms

    • Type 2 diabetes mellitus with Charcôt's joints
  48. E11.618
    Type 2 diabetes mellitus with other diabetic arthropathy
    Billable37
  49. E11.62
    Type 2 diabetes mellitus with skin complications
    Header
  50. E11.620
    Type 2 diabetes mellitus with diabetic dermatitis
    Billable37
    Inclusion terms 1

    Inclusion terms

    • Type 2 diabetes mellitus with diabetic necrobiosis lipoidica
  51. E11.621
    Type 2 diabetes mellitus with foot ulcer
    Billable37 383
    Use additional code 1

    Use additional code

    • code to identify site of ulcer (L97.4-, L97.5-) L97.4 L97.5
  52. E11.622
    Type 2 diabetes mellitus with other skin ulcer
    Billable37 383
    Use additional code 1

    Use additional code

  53. E11.628
    Type 2 diabetes mellitus with other skin complications
    Billable37
  54. E11.63
    Type 2 diabetes mellitus with oral complications
    Header
  55. E11.630
    Type 2 diabetes mellitus with periodontal disease
    Billable37
  56. E11.638
    Type 2 diabetes mellitus with other oral complications
    Billable37
  57. E11.64
    Type 2 diabetes mellitus with hypoglycemia
    Header
    Use additional code 1

    Use additional code

    • code for hypoglycemia level, if applicable (E16.A-) E16.A
  58. E11.641
    Type 2 diabetes mellitus with hypoglycemia with coma
    BillableMCC36
  59. E11.649
    Type 2 diabetes mellitus with hypoglycemia without coma
    Billable38
  60. E11.65
    Type 2 diabetes mellitus with hyperglycemia
    Billable38
  61. E11.69
    Type 2 diabetes mellitus with other specified complication
    Billable37
    Use additional code 1

    Use additional code

    • code to identify complication
  62. E11.8
    Type 2 diabetes mellitus with unspecified complications
    Billable38
  63. E11.9
    Type 2 diabetes mellitus without complications 1 billable code
    Billable38
  64. E11.A
    Type 2 diabetes mellitus without complications in remission
    Billable
    Excludes1 2

    Excludes1

    • type 2 diabetes mellitus, with complications (E11.0-E11.8) E11.0 E11.8
    • type 2 diabetes mellitus, without complications not in remission (E11.9) E11.9

CC/MCC: as a secondary diagnosis, unless the principal diagnosis is on the code’s PDX exclusion list (MS-DRG v44 Appendix C; list on the code card).

Sources of each column. Rows marked +7th need a 7th character: pick one to build the full code; its code card has its own flags.

Instructions

At E11

Includes

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

Excludes1

  • diabetes mellitus due to underlying condition (E08.-) E08
  • drug or chemical induced diabetes mellitus (E09.-) E09
  • gestational diabetes (O24.4-) O24.4
  • neonatal diabetes mellitus (P70.2) P70.2
  • postpancreatectomy diabetes mellitus (E13.-) E13
  • postprocedural diabetes mellitus (E13.-) E13
  • secondary diabetes mellitus NEC (E13.-) E13
  • type 1 diabetes mellitus (E10.-) E10

Use additional code

  • code to identify control using:
  • injectable non-insulin antidiabetic drugs (Z79.85) Z79.85
  • insulin (Z79.4) Z79.4
  • oral antidiabetic drugs (Z79.84) Z79.84
  • oral hypoglycemic drugs (Z79.84) Z79.84

Notes that also apply

Chapter 4 instructions (Notes 1, Excludes1 1): printed on the chapter 4 page.

7th characters

7th characters for E11.32 defined at E11.32

One of the following 7th characters is to be assigned to codes in subcategory E11.32 to designate laterality of the disease:

7th characters for E11.32
7thMeaning (NCHS)
1right eye
2left eye
3bilateral
9unspecified eye

7th characters for E11.33 defined at E11.33

One of the following 7th characters is to be assigned to codes in subcategory E11.33 to designate laterality of the disease:

7th characters for E11.33
7thMeaning (NCHS)
1right eye
2left eye
3bilateral
9unspecified eye

7th characters for E11.34 defined at E11.34

One of the following 7th characters is to be assigned to codes in subcategory E11.34 to designate laterality of the disease:

7th characters for E11.34
7thMeaning (NCHS)
1right eye
2left eye
3bilateral
9unspecified eye

7th characters for E11.35 defined at E11.35

One of the following 7th characters is to be assigned to codes in subcategory E11.35 to designate laterality of the disease:

7th characters for E11.35
7thMeaning (NCHS)
1right eye
2left eye
3bilateral
9unspecified eye

7th characters for E11.37 defined at E11.37

One of the following 7th characters is to be assigned to code E11.37 to designate laterality of the disease:

7th characters for E11.37
7thMeaning (NCHS)
1right eye
2left eye
3bilateral
9unspecified eye

A code that takes a 7th character is invalid without it; the placeholder X fills a code shorter than 6 characters (Official Guidelines I.A.5). How 7th characters work.

Index entries

  • Diabetes, diabetic (mellitus) (sugar)without complications in remission → E11.A
  • Diabetes, diabetic (mellitus) (sugar)withhyperosmolarity → E11.00
  • Diabetes, diabetic (mellitus) (sugar)withketoacidosis → E11.10
  • Diabetes, diabetic (mellitus) (sugar)withglomerulonephrosis, intracapillary → E11.21
  • Diabetes, diabetic (mellitus) (sugar)withglomerulosclerosis, intercapillary → E11.21
  • Diabetes, diabetic (mellitus) (sugar)withKimmelstiel-Wilson disease → E11.21
  • Diabetes, diabetic (mellitus) (sugar)withnephropathy → E11.21
  • Diabetes, diabetic (mellitus) (sugar)withchronic kidney disease → E11.22
  • Diabetes, diabetic (mellitus) (sugar)withkidney complications NEC → E11.29
  • Diabetes, diabetic (mellitus) (sugar)withrenal complication NEC → E11.29
  • Diabetes, diabetic (mellitus) (sugar)withrenal tubular degeneration → E11.29
  • Diabetes, diabetic (mellitus) (sugar)withretinopathy → E11.319
  • Diabetes, diabetic (mellitus) (sugar)withcataract → E11.36
  • Diabetes, diabetic (mellitus) (sugar)withophthalmic complication NEC → E11.39
  • Diabetes, diabetic (mellitus) (sugar)withneuropathy → E11.40
  • Diabetes, diabetic (mellitus) (sugar)withmononeuropathy → E11.41
  • Diabetes, diabetic (mellitus) (sugar)withneuralgia → E11.42
  • Diabetes, diabetic (mellitus) (sugar)withpolyneuropathy → E11.42
  • Diabetes, diabetic (mellitus) (sugar)withautonomic (poly)neuropathy → E11.43
  • Diabetes, diabetic (mellitus) (sugar)withgastroparalysis → E11.43
  • Diabetes, diabetic (mellitus) (sugar)withgastroparesis → E11.43
  • Diabetes, diabetic (mellitus) (sugar)withamyotrophy → E11.44
  • Diabetes, diabetic (mellitus) (sugar)withmyasthenia → E11.44
  • Diabetes, diabetic (mellitus) (sugar)withneurologic complication NEC → E11.49
  • Diabetes, diabetic (mellitus) (sugar)withperipheral angiopathy → E11.51
  • Diabetes, diabetic (mellitus) (sugar)withgangrene → E11.52
  • Diabetes, diabetic (mellitus) (sugar)withcirculatory complication NEC → E11.59
  • Diabetes, diabetic (mellitus) (sugar)withCharcot's joints → E11.610
  • Diabetes, diabetic (mellitus) (sugar)withneuropathic arthropathy → E11.610
  • Diabetes, diabetic (mellitus) (sugar)witharthropathy NEC → E11.618
  • Diabetes, diabetic (mellitus) (sugar)withdermatitis → E11.620
  • Diabetes, diabetic (mellitus) (sugar)withnecrobiosis lipoidica → E11.620
  • Diabetes, diabetic (mellitus) (sugar)withfoot ulcer → E11.621
  • Diabetes, diabetic (mellitus) (sugar)withskin ulcer NEC → E11.622
  • Diabetes, diabetic (mellitus) (sugar)withskin complication NEC → E11.628
  • Diabetes, diabetic (mellitus) (sugar)withperiodontal disease → E11.630
  • Diabetes, diabetic (mellitus) (sugar)withoral complication NEC → E11.638
  • Diabetes, diabetic (mellitus) (sugar)withhypoglycemia → E11.649
  • Diabetes, diabetic (mellitus) (sugar)withhyperglycemia → E11.65
  • Diabetes, diabetic (mellitus) (sugar)withosteomyelitis → E11.69

91 more, longer entries are not listed; the search box finds them by word.

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy