Is E08.5 a billable ICD-10-CM code?

No. E08.5 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does E08.5 sit in the tabular list?

Endocrine, nutritional and metabolic diseases (E00-E89), in the block Diabetes mellitus (E08-E13).

What cannot be coded together with E08.5?

E08.5 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above E08.5 (E08) and apply to it just the same.

E08.5

E08.5 — Diabetes mellitus due to underlying condition with circulatory complications

Non-billable headerICD-10-CM

E08.5 is a non-billable header ICD-10-CM code for diabetes mellitus due to underlying condition with circulatory complications. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 inherited from the categories above E08.5

These are not written on E08.5, but they bind it: a note on a category applies to every code beneath it. Billing E08.5 with anything listed here is a denial.

Written on E08 — Diabetes mellitus due to underlying condition

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.-)

Other codes that can never be billed with E08.5

These codes carry an Excludes1 note pointing at E08.5. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading E08.5 alone.

E10Type 1 diabetes mellitus
E11Type 2 diabetes mellitus
E13Other specified diabetes mellitus
E09Drug or chemical induced diabetes mellitus

Risk adjustment

E08.5 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code history

E08.5 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Code to one of these instead E08.5

3 child codes. Green means billable.

Related codes at this level

Codes that share E08. If E08.5 is not quite right, the correct code is usually one of these.

Questions about E08.5

Is E08.5 a billable ICD-10-CM code?: No. E08.5 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does E08.5 sit in the tabular list?: Endocrine, nutritional and metabolic diseases (E00-E89), in the block Diabetes mellitus (E08-E13).
What cannot be coded together with E08.5?: E08.5 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above E08.5 (E08) and apply to it just the same.