Coding and coverage · ICD-10-CM

E08 Diabetes mellitus due to underlying condition

Not billable (header)Chapter 4

Report one of the more specific codes below.

Check coverage with this diagnosis

Codes under this one

  • E08.0 Diabetes mellitus due to underlying condition with hyperosmolarityHeader
  • E08.1 Diabetes mellitus due to underlying condition with ketoacidosisHeader
  • E08.2 Diabetes mellitus due to underlying condition with kidney complicationsHeader
  • E08.3 Diabetes mellitus due to underlying condition with ophthalmic complicationsHeader
  • E08.4 Diabetes mellitus due to underlying condition with neurological complicationsHeader
  • E08.5 Diabetes mellitus due to underlying condition with circulatory complicationsHeader
  • E08.6 Diabetes mellitus due to underlying condition with other specified complicationsHeader
  • E08.8 Diabetes mellitus due to underlying condition with unspecified complications
  • E08.9 Diabetes mellitus due to underlying condition without complications

Instructional notes

Chapter 4

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.
  • transitory endocrine and metabolic disorders specific to newborn (P70-P74)
Notes
  • All neoplasms, whether functionally active or not, are classified in Chapter 2. Appropriate codes in this chapter (i.e. E05.8, E07.0, E16-E31, E34.-) may be used as additional codes to indicate either functional activity by neoplasms and ectopic endocrine tissue or hyperfunction and hypofunction of endocrine glands associated with neoplasms and other conditions classified elsewhere.

This code

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.
  • 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 firstSequence the underlying condition first.
  • 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 codeAdd a second code for the full picture.
  • 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)

Chapter 4: Endocrine, nutritional and metabolic diseases · E08-E13 Diabetes mellitus (E08-E13)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.