E08
Non-Billable

Diabetes mellitus due to underlying condition

Non-Billable / Non-Specific Code

What is Diabetes mellitus due to underlying condition?

ICD-10-CM E08 is the diagnosis code for Diabetes mellitus due to underlying condition. This code falls under the section "Diabetes mellitus" within Chapter 4 — Endocrine, nutritional and metabolic diseases (E00-E89). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

⛔ Excludes1

Coding Guidelines for E08

⛔ Type 1 Excludes (Never code together)

The following conditions should never be coded at the same time as E08. They are mutually exclusive:

  • 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.-)

ICD-10-CM Code Hierarchy

Understanding where E08 sits in the ICD-10-CM classification helps ensure proper coding:

Current CodeE08 — Diabetes mellitus due to underlying condition
Sub-Codes 9 entries
E08.0Diabetes mellitus due to underlying condition with hyperosmolarityNon-BillableE08.00Diabetes mellitus due to underlying condition with hyperosmolarity without nonketotic hyperglycemic-hyperosmolar coma (NKHHC)BillableE08.01Diabetes mellitus due to underlying condition with hyperosmolarity with comaBillableE08.1Diabetes mellitus due to underlying condition with ketoacidosisNon-BillableE08.10Diabetes mellitus due to underlying condition with ketoacidosis without comaBillableE08.11Diabetes mellitus due to underlying condition with ketoacidosis with comaBillableE08.2Diabetes mellitus due to underlying condition with kidney complicationsNon-BillableE08.21Diabetes mellitus due to underlying condition with diabetic nephropathyBillableE08.22Diabetes mellitus due to underlying condition with diabetic chronic kidney diseaseBillableE08.29Diabetes mellitus due to underlying condition with other diabetic kidney complicationBillableE08.3Diabetes mellitus due to underlying condition with ophthalmic complicationsNon-BillableE08.31Diabetes mellitus due to underlying condition with unspecified diabetic retinopathyNon-BillableE08.311Diabetes mellitus due to underlying condition with unspecified diabetic retinopathy with macular edemaBillableE08.319Diabetes mellitus due to underlying condition with unspecified diabetic retinopathy without macular edemaBillableE08.32Diabetes mellitus due to underlying condition with mild nonproliferative diabetic retinopathyNon-BillableE08.321Diabetes mellitus due to underlying condition with mild nonproliferative diabetic retinopathy with macular edemaBillableE08.329Diabetes mellitus due to underlying condition with mild nonproliferative diabetic retinopathy without macular edemaBillableE08.33Diabetes mellitus due to underlying condition with moderate nonproliferative diabetic retinopathyNon-BillableE08.331Diabetes mellitus due to underlying condition with moderate nonproliferative diabetic retinopathy with macular edemaBillableE08.339Diabetes mellitus due to underlying condition with moderate nonproliferative diabetic retinopathy without macular edemaBillableE08.34Diabetes mellitus due to underlying condition with severe nonproliferative diabetic retinopathyNon-BillableE08.341Diabetes mellitus due to underlying condition with severe nonproliferative diabetic retinopathy with macular edemaBillableE08.349Diabetes mellitus due to underlying condition with severe nonproliferative diabetic retinopathy without macular edemaBillableE08.35Diabetes mellitus due to underlying condition with proliferative diabetic retinopathyNon-BillableE08.351Diabetes mellitus due to underlying condition with proliferative diabetic retinopathy with macular edemaBillableE08.352Diabetes mellitus due to underlying condition with proliferative diabetic retinopathy with traction retinal detachment involving the maculaBillableE08.353Diabetes mellitus due to underlying condition with proliferative diabetic retinopathy with traction retinal detachment not involving the maculaBillableE08.354Diabetes mellitus due to underlying condition with proliferative diabetic retinopathy with combined traction retinal detachment and rhegmatogenous retinal detachmentBillableE08.355Diabetes mellitus due to underlying condition with stable proliferative diabetic retinopathyBillableE08.359Diabetes mellitus due to underlying condition with proliferative diabetic retinopathy without macular edemaBillableE08.36Diabetes mellitus due to underlying condition with diabetic cataractBillableE08.37Diabetes mellitus due to underlying condition with diabetic macular edema, resolved following treatmentBillableE08.39Diabetes mellitus due to underlying condition with other diabetic ophthalmic complicationBillableE08.4Diabetes mellitus due to underlying condition with neurological complicationsNon-BillableE08.40Diabetes mellitus due to underlying condition with diabetic neuropathy, unspecifiedBillableE08.41Diabetes mellitus due to underlying condition with diabetic mononeuropathyBillableE08.42Diabetes mellitus due to underlying condition with diabetic polyneuropathyBillableE08.43Diabetes mellitus due to underlying condition with diabetic autonomic (poly)neuropathyBillableE08.44Diabetes mellitus due to underlying condition with diabetic amyotrophyBillableE08.49Diabetes mellitus due to underlying condition with other diabetic neurological complicationBillableE08.5Diabetes mellitus due to underlying condition with circulatory complicationsNon-BillableE08.51Diabetes mellitus due to underlying condition with diabetic peripheral angiopathy without gangreneBillableE08.52Diabetes mellitus due to underlying condition with diabetic peripheral angiopathy with gangreneBillableE08.59Diabetes mellitus due to underlying condition with other circulatory complicationsBillableE08.6Diabetes mellitus due to underlying condition with other specified complicationsNon-BillableE08.61Diabetes mellitus due to underlying condition with diabetic arthropathyNon-BillableE08.610Diabetes mellitus due to underlying condition with diabetic neuropathic arthropathyBillableE08.618Diabetes mellitus due to underlying condition with other diabetic arthropathyBillableE08.62Diabetes mellitus due to underlying condition with skin complicationsNon-BillableE08.620Diabetes mellitus due to underlying condition with diabetic dermatitisBillableE08.621Diabetes mellitus due to underlying condition with foot ulcerBillableE08.622Diabetes mellitus due to underlying condition with other skin ulcerBillableE08.628Diabetes mellitus due to underlying condition with other skin complicationsBillableE08.63Diabetes mellitus due to underlying condition with oral complicationsNon-BillableE08.630Diabetes mellitus due to underlying condition with periodontal diseaseBillableE08.638Diabetes mellitus due to underlying condition with other oral complicationsBillableE08.64Diabetes mellitus due to underlying condition with hypoglycemiaNon-BillableE08.641Diabetes mellitus due to underlying condition with hypoglycemia with comaBillableE08.649Diabetes mellitus due to underlying condition with hypoglycemia without comaBillableE08.65Diabetes mellitus due to underlying condition with hyperglycemiaBillableE08.69Diabetes mellitus due to underlying condition with other specified complicationBillableE08.8Diabetes mellitus due to underlying condition with unspecified complicationsBillableE08.9Diabetes mellitus due to underlying condition without complicationsBillable
Related Codes

Frequently Asked Questions

Is E08 a billable ICD-10-CM code?

No, E08 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does E08 mean?

E08 is the ICD-10-CM diagnosis code for "Diabetes mellitus due to underlying condition". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What section is E08 in?

E08 is located in Section E08-E13 — "Diabetes mellitus" within Chapter 4 of the ICD-10-CM Tabular List.

What are the sub-codes of E08?

E08 has 9 sub-code(s) that provide more specific detail: E08.0, E08.1, E08.2, E08.3, E08.4 and more.

When should I use E08?

Use E08 when the patients documented diagnosis matches "Diabetes mellitus due to underlying condition" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Diabetes mellitus due to underlying condition?

The ICD-10-CM code for Diabetes mellitus due to underlying condition is E08.

Can E08 be used for primary diagnosis?

No, E08 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is E08 in?

E08 is in Chapter 4 of the ICD-10-CM Tabular List.

What conditions are excluded from E08?

Type 1 Excludes for E08 include: drug or chemical induced diabetes mellitus (E09.-); gestational diabetes (O24.4-); neonatal diabetes mellitus (P70.2) and more.

Is E08 valid for 2026?

Yes, E08 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousE07.9Disorder of thyroid, unspecifiedNext →E08.0Diabetes mellitus due to underlying condition with hyperosmolarity
Code Details
E08
Diabetes mellitus due to underlying condition
Non-Billable / Non-Specific Code
4 — Endocrine, nutritional and metabolic diseases (E00-E89)
E08-E13 — Diabetes mellitus
2026 ICD-10-CM