Coding and coverage · ICD-10-CM

E11

E11.1 Type 2 diabetes mellitus with ketoacidosis

Not billable (header)Chapter 4

Report one of the more specific codes below.

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Codes under this one

  • E11.10 Type 2 diabetes mellitus with ketoacidosis without coma
  • E11.11 Type 2 diabetes mellitus with ketoacidosis with coma

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.

E11

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.
  • diabetes mellitus due to underlying condition (E08.-)
  • 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.-)
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)
Includes
  • diabetes (mellitus) due to insulin secretory defect
  • diabetes NOS
  • insulin resistant diabetes (mellitus)

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.