E13

E13: Other specified diabetes mellitus

Non-billable headerICD-10-CM

E13 is a non-billable header ICD-10-CM code for other specified diabetes mellitus. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

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

Add a secondary code to capture the detail described below.

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

Conditions this code covers.

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

Other codes that can never be billed with E13

Their own Excludes1 notes name this code, so the conflict is not listed above.

E08Diabetes mellitus due to underlying condition
E09Drug or chemical induced diabetes mellitus
E10Type 1 diabetes mellitus
E11Type 2 diabetes mellitus
E16.1Other hypoglycemia
E16.2Hypoglycemia, unspecified
E87.2Acidosis
G54.5Neuralgic amyotrophy

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead E13

9 child codes. Green means billable.