DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

E13 Other specified diabetes mellitus

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

E13 is not billable. The category heads 86 billable codes in FY2027, grouped under 9 subdivisions.

Index → code

  • Diabetes, diabetic (mellitus) (sugar)hepatogenous → E13.9
  • Diabetes, diabetic (mellitus) (sugar)specified type NEC → E13.9
  • Diabetes, diabetic (mellitus) (sugar)retina, hemorrhage → E13.39

Where it sits

  1. Chapter 4 Endocrine, nutritional and metabolic diseases (E00-E89)
  2. E08-E13 Diabetes mellitus (E08-E13)
  3. E13 Other specified diabetes mellitus
Billable codes
86
Subdivisions
9
CC / MCC codes
1 / 5
HCC V28 codes
86
New FY2027
0
Index entries
62

Codes in E13

  1. E13.0
    Other specified diabetes mellitus with hyperosmolarity
    Header
  2. E13.00
    Other specified diabetes mellitus with hyperosmolarity without nonketotic hyperglycemic-hyperosmolar coma (NKHHC)
    BillableMCC36
  3. E13.01
    Other specified diabetes mellitus with hyperosmolarity with coma
    BillableMCC36
  4. E13.1
    Other specified diabetes mellitus with ketoacidosis
    Header
  5. E13.10
    Other specified diabetes mellitus with ketoacidosis without coma
    BillableMCC36
  6. E13.11
    Other specified diabetes mellitus with ketoacidosis with coma
    BillableMCC36
  7. E13.2
    Other specified diabetes mellitus with kidney complications
    Header
  8. E13.21
    Other specified diabetes mellitus with diabetic nephropathy
    Billable37
    Inclusion terms 3

    Inclusion terms

    • Other specified diabetes mellitus with intercapillary glomerulosclerosis
    • Other specified diabetes mellitus with intracapillary glomerulonephrosis
    • Other specified diabetes mellitus with Kimmelstiel-Wilson disease
  9. E13.22
    Other specified 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. E13.29
    Other specified diabetes mellitus with other diabetic kidney complication
    Billable37
    Inclusion terms 1

    Inclusion terms

    • Other specified diabetes mellitus with renal tubular degeneration
  11. E13.3
    Other specified diabetes mellitus with ophthalmic complications
    Header
  12. E13.31
    Other specified diabetes mellitus with unspecified diabetic retinopathy
    Header
  13. E13.311
    Other specified diabetes mellitus with unspecified diabetic retinopathy with macular edema
    Billable37 298
  14. E13.319
    Other specified diabetes mellitus with unspecified diabetic retinopathy without macular edema
    Billable37
  15. E13.32
    Other specified diabetes mellitus with mild nonproliferative diabetic retinopathy
    Header
    Inclusion terms 1

    Inclusion terms

    • Other specified diabetes mellitus with nonproliferative diabetic retinopathy NOS
  16. E13.321
    Other specified diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema +7th: 1 2 3 9
    Needs 7th character37 298 (all 7th characters)
  17. E13.329
    Other specified diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema +7th: 1 2 3 9
    Needs 7th character37 (all 7th characters)
  18. E13.33
    Other specified diabetes mellitus with moderate nonproliferative diabetic retinopathy
    Header
  19. E13.331
    Other specified diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edema +7th: 1 2 3 9
    Needs 7th character37 298 (all 7th characters)
  20. E13.339
    Other specified diabetes mellitus with moderate nonproliferative diabetic retinopathy without macular edema +7th: 1 2 3 9
    Needs 7th character37 (all 7th characters)
  21. E13.34
    Other specified diabetes mellitus with severe nonproliferative diabetic retinopathy
    Header
  22. E13.341
    Other specified diabetes mellitus with severe nonproliferative diabetic retinopathy with macular edema +7th: 1 2 3 9
    Needs 7th character37 298 (all 7th characters)
  23. E13.349
    Other specified diabetes mellitus with severe nonproliferative diabetic retinopathy without macular edema +7th: 1 2 3 9
    Needs 7th character37 (all 7th characters)
  24. E13.35
    Other specified diabetes mellitus with proliferative diabetic retinopathy
    Header
  25. E13.351
    Other specified diabetes mellitus with proliferative diabetic retinopathy with macular edema +7th: 1 2 3 9
    Needs 7th character37 298 (all 7th characters)
  26. E13.352
    Other specified 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. E13.353
    Other specified 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. E13.354
    Other specified 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. E13.355
    Other specified diabetes mellitus with stable proliferative diabetic retinopathy +7th: 1 2 3 9
    Needs 7th character37 298 (all 7th characters)
  30. E13.359
    Other specified diabetes mellitus with proliferative diabetic retinopathy without macular edema +7th: 1 2 3 9
    Needs 7th character37 298 (all 7th characters)
  31. E13.36
    Other specified diabetes mellitus with diabetic cataract
    Billable37
  32. E13.37
    Other specified diabetes mellitus with diabetic macular edema, resolved following treatment +7th: 1 2 3 9
    Needs 7th character37 (all 7th characters)
  33. E13.39
    Other specified 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. E13.4
    Other specified diabetes mellitus with neurological complications
    Header
  35. E13.40
    Other specified diabetes mellitus with diabetic neuropathy, unspecified
    Billable37
  36. E13.41
    Other specified diabetes mellitus with diabetic mononeuropathy
    Billable37
  37. E13.42
    Other specified diabetes mellitus with diabetic polyneuropathy
    Billable37
    Inclusion terms 1

    Inclusion terms

    • Other specified diabetes mellitus with diabetic neuralgia
  38. E13.43
    Other specified diabetes mellitus with diabetic autonomic (poly)neuropathy
    Billable37
    Inclusion terms 1

    Inclusion terms

    • Other specified diabetes mellitus with diabetic gastroparesis
  39. E13.44
    Other specified diabetes mellitus with diabetic amyotrophy
    Billable37
  40. E13.49
    Other specified diabetes mellitus with other diabetic neurological complication
    Billable37
  41. E13.5
    Other specified diabetes mellitus with circulatory complications
    Header
  42. E13.51
    Other specified diabetes mellitus with diabetic peripheral angiopathy without gangrene
    Billable37
  43. E13.52
    Other specified diabetes mellitus with diabetic peripheral angiopathy with gangrene
    BillableCC37 263
    Inclusion terms 1

    Inclusion terms

    • Other specified diabetes mellitus with diabetic gangrene
  44. E13.59
    Other specified diabetes mellitus with other circulatory complications
    Billable37
  45. E13.6
    Other specified diabetes mellitus with other specified complications
    Header
  46. E13.61
    Other specified diabetes mellitus with diabetic arthropathy
    Header
  47. E13.610
    Other specified diabetes mellitus with diabetic neuropathic arthropathy
    Billable37
    Inclusion terms 1

    Inclusion terms

    • Other specified diabetes mellitus with Charcôt's joints
  48. E13.618
    Other specified diabetes mellitus with other diabetic arthropathy
    Billable37
  49. E13.62
    Other specified diabetes mellitus with skin complications
    Header
  50. E13.620
    Other specified diabetes mellitus with diabetic dermatitis
    Billable37
    Inclusion terms 1

    Inclusion terms

    • Other specified diabetes mellitus with diabetic necrobiosis lipoidica
  51. E13.621
    Other specified 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. E13.622
    Other specified diabetes mellitus with other skin ulcer
    Billable37 383
    Use additional code 1

    Use additional code

  53. E13.628
    Other specified diabetes mellitus with other skin complications
    Billable37
  54. E13.63
    Other specified diabetes mellitus with oral complications
    Header
  55. E13.630
    Other specified diabetes mellitus with periodontal disease
    Billable37
  56. E13.638
    Other specified diabetes mellitus with other oral complications
    Billable37
  57. E13.64
    Other specified diabetes mellitus with hypoglycemia
    Header
    Use additional code 1

    Use additional code

    • code for hypoglycemia level, if applicable (E16.A-) E16.A
  58. E13.641
    Other specified diabetes mellitus with hypoglycemia with coma
    BillableMCC36
  59. E13.649
    Other specified diabetes mellitus with hypoglycemia without coma
    Billable38
  60. E13.65
    Other specified diabetes mellitus with hyperglycemia
    Billable38
  61. E13.69
    Other specified diabetes mellitus with other specified complication
    Billable37
    Use additional code 1

    Use additional code

    • code to identify complication
  62. E13.8
    Other specified diabetes mellitus with unspecified complications
    Billable38
  63. E13.9
    Other specified diabetes mellitus without complications 1 billable code
    Billable38

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 E13

Includes

  • diabetes mellitus due to genetic defects of beta-cell function
  • diabetes mellitus due to genetic defects in insulin action
  • postpancreatectomy diabetes mellitus
  • postprocedural diabetes mellitus
  • secondary diabetes mellitus NEC

Excludes1

  • diabetes (mellitus) due to autoimmune process (E10.-) E10
  • diabetes (mellitus) due to immune mediated pancreatic islet beta-cell destruction (E10.-) E10
  • 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
  • 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 E13.32 defined at E13.32

One of the following 7th characters is to be assigned to codes in subcategory E13.32 to designate laterality of the disease:

7th characters for E13.32
7thMeaning (NCHS)
1right eye
2left eye
3bilateral
9unspecified eye

7th characters for E13.33 defined at E13.33

One of the following 7th characters is to be assigned to codes in subcategory E13.33 to designate laterality of the disease:

7th characters for E13.33
7thMeaning (NCHS)
1right eye
2left eye
3bilateral
9unspecified eye

7th characters for E13.34 defined at E13.34

One of the following 7th characters is to be assigned to codes in subcategory E13.34 to designate laterality of the disease:

7th characters for E13.34
7thMeaning (NCHS)
1right eye
2left eye
3bilateral
9unspecified eye

7th characters for E13.35 defined at E13.35

One of the following 7th characters is to be assigned to codes in subcategory E13.35 to designate laterality of the disease:

7th characters for E13.35
7thMeaning (NCHS)
1right eye
2left eye
3bilateral
9unspecified eye

7th characters for E13.37 defined at E13.37

One of the following 7th characters is to be assigned to code E13.37 to designate laterality of the disease:

7th characters for E13.37
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)retina, hemorrhage → E13.39
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithhyperosmolarity → E13.00
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithketoacidosis → E13.10
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithglomerulonephrosis, intracapillary → E13.21
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithglomerulosclerosis, intercapillary → E13.21
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithKimmelstiel-Wilson disease → E13.21
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithnephropathy → E13.21
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithchronic kidney disease → E13.22
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithkidney complications NEC → E13.29
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithrenal complication NEC → E13.29
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithrenal tubular degeneration → E13.29
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithretinopathy → E13.319
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithcataract → E13.36
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithophthalmic complication NEC → E13.39
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithretinal, hemorrhage → E13.39
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithneuropathy → E13.40
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithmononeuropathy → E13.41
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithneuralgia → E13.42
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithpolyneuropathy → E13.42
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithautonomic (poly)neuropathy → E13.43
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithgastroparalysis → E13.43
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithgastroparesis → E13.43
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithamyotrophy → E13.44
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithmyasthenia → E13.44
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithneurologic complication NEC → E13.49
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithperipheral angiopathy → E13.51
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithgangrene → E13.52
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithcirculatory complication NEC → E13.59
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithCharcot's joints → E13.610
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithneuropathic arthropathy → E13.610
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwitharthropathy NEC → E13.618
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithdermatitis → E13.620
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithnecrobiosis lipoidica → E13.620
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithfoot ulcer → E13.621
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithskin ulcer NEC → E13.622
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithskin complication NEC → E13.628
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithperiodontal disease → E13.630
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithoral complication NEC → E13.638
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithhypoglycemia → E13.649
  • Diabetes, diabetic (mellitus) (sugar)specified type NECwithhyperglycemia → E13.65

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

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

Hierarchy