All ICD10 Codes
E08Not billable, use a more specific code below

Diabetes mellitus due to underlying condition

In Diabetes mellitus (E08-E13), chapter 4: Endocrine, Nutritional and Metabolic Diseases

86 billable codes under E08: 5 are an MCC, 1 is a CC; all map to HCC 37 (Diabetes with Chronic Complications), HCC 298 (Severe Diabetic Eye Disease, Retinal Vein Occlusion, and Vitreous Hemorrhage), HCC 36 (Diabetes with Severe Acute Complications) and 3 more HCCs.A CC or MCC (major CC) is a secondary diagnosis that raises the MS-DRG payment. An HCC counts toward a Medicare Advantage patient's risk score.

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Instructional notes

Excludes1: not coded here, use a different code

  • 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.-)
  • type 2 diabetes mellitus (E11.-)

Code first: code the underlying condition first, then this code

  • the underlying condition, such as:
  • congenital rubella (P35.0)
  • Cushing's syndrome (E24.-)
  • cystic fibrosis (E84.-)
  • malignant neoplasm (C00-C96)
  • malnutrition (E40-E46)
  • pancreatitis and other diseases of the pancreas (K85-K86.-)

Use additional code: add a second code for this, listed after this one

  • 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)

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

  • Section I.C.4.a Diabetes mellitus (page 39), covers E08

    Assign as many codes from E08 to E13 as needed for all complications; default to E11.- when type is undocumented. Add Z79 codes for long-term insulin, oral, or injectable drugs, but not Z79.4 for temporary insulin.

Other Chapter 4 topics:

Read Section I.C.4 (page 39)

All codes under E08

E08 can't be used on a claim. Pick a billable code below; grey headings group them.

E08 MS-DRGs

As the principal diagnosis, the billable codes under E08 group to these 16 MS-DRGs (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

Other codes that refer to E08

Notes on these codes point to E08.

  • D84.81 Code First: diabetes mellitus (E08-E13)
  • E09 Excludes1: diabetes mellitus due to underlying condition (E08.-)
  • E10 Excludes1: diabetes mellitus due to underlying condition (E08.-)
  • E11 Excludes1: diabetes mellitus due to underlying condition (E08.-)
  • E13 Excludes1: diabetes mellitus due to underlying condition (E08.-)
  • E74 Excludes1: diabetes mellitus (E08-E13)
  • E87.0 Excludes2: diabetes with hyperosmolarity (E08, E09, E11, E13 with final characters .00 or .01)
  • E87.2 Excludes1: diabetic acidosis - see categories E08-E10, E11, E13 with ketoacidosis
  • G54.5 Excludes1: neuralgic amyotrophy in diabetes mellitus (E08-E13 with .44)
  • G59 Excludes1: diabetic mononeuropathy (E08-E13 with .41)
  • G63 Excludes1: diabetes mellitus (E08-E13 with .42)
  • G99.0 Excludes1: diabetic autonomic neuropathy (E08-E13 with .43)
  • H20.0 Excludes1: iridocyclitis, iritis, uveitis (due to) (in) diabetes mellitus (E08-E13 with .39)
  • I73.8 Excludes1: diabetic (peripheral) angiopathy (E08-E13 with .51-.52)
  • I79.8 Excludes1: diabetic (peripheral) angiopathy (E08-E13 with .51-.52)
  • I96 Excludes2: gangrene in diabetes mellitus (E08-E13 with .52)
  • L92.1 Excludes1: necrobiosis lipoidica associated with diabetes mellitus (E08-E13 with .620)
  • L99 Excludes1: skin disorders in diabetes (E08-E13 with .62-)
  • M14 Excludes1: diabetes mellitus (E08-E13 with .61-)
  • M14.6 Excludes1: Charcôt's joint in diabetes mellitus (E08-E13 with .610)

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

Diabetes

Diabetes, also known as diabetes mellitus, is a disease in which your blood glucose, or blood sugar, levels are too high. Glucose is your body's main source of energy. Your body can make glucose, but it also comes from the food you eat. Insulin is a hormone made by your pancreas. Insulin helps move glucose from your bloodstream into your cells, where it can be used for energy.

Read more about diabetes on MedlinePlus

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.