E13 – Other specified diabetes mellitus

ICD-10-CM 2027 diagnosis code · Diabetes mellitus

Non-billable header

ICD-10-CM code E13

Code: E13 (claims format: E13)
Description: Other specified diabetes mellitus
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 4. Endocrine, nutritional and metabolic diseases (E00-E89)
Block: E08-E13 Diabetes mellitus

Billable codes under E13

E13 is a header code and cannot be used on claims. Choose the most specific code:

E13.0 – Other specified diabetes mellitus with hyperosmolarityHeader (more codes below)
E13.1 – Other specified diabetes mellitus with ketoacidosisHeader (more codes below)
E13.2 – Other specified diabetes mellitus with kidney complicationsHeader (more codes below)
E13.3 – Other specified diabetes mellitus with ophthalmic complicationsHeader (more codes below)
E13.4 – Other specified diabetes mellitus with neurological complicationsHeader (more codes below)
E13.5 – Other specified diabetes mellitus with circulatory complicationsHeader (more codes below)
E13.6 – Other specified diabetes mellitus with other specified complicationsHeader (more codes below)
E13.8 – Other specified diabetes mellitus with unspecified complicationsBillable
E13.9 – Other specified diabetes mellitus without complicationsBillable

Notes for 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 (not coded here):

diabetes (mellitus) due to autoimmune process (E10.-)
diabetes (mellitus) due to immune mediated pancreatic islet beta-cell destruction (E10.-)
diabetes mellitus due to underlying condition (E08.-)
drug or chemical induced diabetes mellitus (E09.-)
gestational diabetes (O24.4-)
neonatal diabetes mellitus (P70.2)
type 1 diabetes mellitus (E10.-)

Use additional code:

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)

Frequently asked questions

What is ICD-10 code E13?

E13 is the ICD-10-CM code for other specified diabetes mellitus, in the block E08-E13 (Diabetes mellitus).

Is E13 a billable code?

No. E13 is a header code with more specific child codes; report one of the billable codes listed above.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.